0001564590-23-002876 | 10-K | XBRL Viewer

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Cover page - USD ($)	12 Months Ended
Cover page - USD ($)	Dec. 31, 2022	Feb. 15, 2023	Jun. 30, 2022
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Document Transition Report	false
Entity File Number	1-6887
Entity Registrant Name	BANK OF HAWAII CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	99-0148992
Entity Address, Address Line One	130 Merchant Street
Entity Address, City or Town	Honolulu
Entity Address, State or Province	HI
Entity Address, Postal Zip Code	96813
City Area Code	888
Local Phone Number	643-3888
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 2,927,429,225
Entity Common Stock, Shares Outstanding		39,785,398
Entity Central Index Key	0000046195
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2022
ICFR Auditor Attestation Flag	true
Auditor Name	Ernst & Young LLP
Auditor Firm ID	42
Auditor Location	Honolulu, Hawaii
Documents Incorporated by Reference	Portions of the registrant’s definitive proxy statement relating to its 2023 Annual Meeting of Shareholders, are incorporated herein by reference in Part III of this Annual Report on Form 10-K to the extent stated herein. Such proxy statement will be filed with the Securities and Exchange Commission within 120 days of the registrant’s fiscal year end ended December 31, 2022.
Common Stock
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	BOH
Security Exchange Name	NYSE
Series A Preferred Stock
Entity Information [Line Items]
Title of 12(b) Security	Depository Shares, Each Representing 1/40th Interest in a Share of 4.375% Fixed Rate Non-Cumulative Preferred Stock, Series A
Trading Symbol	BOH.PRA
Security Exchange Name	NYSE

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
Consolidated Statements of Income - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest Income
Interest and Fees on Loans and Leases	$ 439,798	$ 398,616	$ 417,498
Income on Investment Securities
Available-for-Sale	70,555	64,550	61,294
Held-to-Maturity	81,490	61,955	66,055
Deposits	32	10	14
Funds Sold	4,274	883	902
Other	1,217	702	661
Total Interest Income	597,366	526,716	546,424
Interest Expense
Deposits	39,678	15,216	32,966
Securities Sold Under Agreements to Repurchase	12,600	13,260	15,281
Funds Purchased	417	7	95
Short-Term Borrowings	2,070		62
Other Debt	2,043	943	1,698
Total Interest Expense	56,808	29,426	50,102
Net Interest Income	540,558	497,290	496,322
Provision for Credit Losses	(7,800)	(50,500)	117,800
Net Interest Income After Provision for Credit Losses	548,358	547,790	378,522
Noninterest Income
Trust and Asset Management	43,803	46,068	43,456
Mortgage Banking	5,980	14,964	17,871
Service Charges on Deposit Accounts	29,620	25,564	24,910
Fees, Exchange, and Other Service Charges	54,914	55,457	47,056
Investment Securities Gains (Losses), Net	(6,111)	(1,297)	9,932
Annuity and Insurance	3,782	3,224	3,362
Bank-Owned Life Insurance	9,968	7,784	7,388
Other	15,585	19,589	30,434
Total Noninterest Income	157,541	171,353	184,409
Noninterest Expense
Salaries and Benefits	235,270	228,293	207,329
Net Occupancy	39,441	26,244	39,533
Net Equipment	38,374	35,703	35,448
Data Processing	18,362	20,297	18,499
Professional Fees	14,557	12,895	12,186
FDIC Insurance	6,546	6,536	5,780
Other	62,715	63,621	55,032
Total Noninterest Expense	415,265	393,589	373,807
Income Before Provision for Income Taxes	290,634	325,554	189,124
Provision for Income Taxes	64,830	72,182	35,320
Net Income	225,804	253,372	153,804
Preferred Stock Dividends	7,877	2,975
Net Income Available to Common Shareholders	$ 217,927	$ 250,397	$ 153,804
Basic Earnings Per Common Share	$ 5.50	$ 6.29	$ 3.87
Diluted Earnings Per Common Share	5.48	6.25	3.86
Dividends Declared Per Common Share	$ 2.80	$ 2.74	$ 2.68
Basic Weighted Average Common Shares	39,601,089	39,837,798	39,726,210
Diluted Weighted Average Common Shares	39,788,002	40,053,664	39,892,107

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net Income	$ 225,804	$ 253,372	$ 153,804
Other Comprehensive Income (Loss), Net of Tax:
Net Unrealized Gains (Losses) on Investment Securities	(376,694)	(83,958)	43,428
Defined Benefit Plans	8,418	9,754	(4,494)
Other Comprehensive Income (Loss)	(368,276)	(74,204)	38,934
Comprehensive Income (Loss)	$ (142,472)	$ 179,168	$ 192,738

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details

Consolidated Statements of Condition - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets
Interest-Bearing Deposits in Other Banks	$ 3,724	$ 2,571
Funds Sold	81,364	361,536
Investment Securities
Available-for-Sale	2,844,823	4,276,056
Held-to-Maturity (Fair Value of $4,615,393 and $4,646,619)	5,414,139	4,694,780
Loans Held for Sale	1,035	26,746
Loans and Leases	13,646,420	12,259,076
Allowance for Credit Losses	(144,439)	(157,821)
Net Loans and Leases	13,501,981	12,101,255
Total Earning Assets	21,847,066	21,462,944
Cash and Due From Banks	316,679	196,327
Premises and Equipment, Net	206,777	199,393
Operating Lease Right-of-Use Assets	92,307	95,621
Accrued Interest Receivable	61,002	45,242
Foreclosed Real Estate	1,040	2,332
Mortgage Servicing Rights	22,619	22,251
Goodwill	31,517	31,517
Bank-Owned Life Insurance	453,882	344,587
Other Assets	573,988	384,727
Total Assets	23,606,877	22,784,941
Deposits
Noninterest-Bearing Demand	6,714,982	7,275,287
Interest-Bearing Demand	4,232,567	4,628,567
Savings	7,962,410	7,456,165
Time	1,705,737	1,000,089
Total Deposits	20,615,696	20,360,108
Securities Sold Under Agreements to Repurchase	725,490	450,490
Other Debt	410,294	10,391
Operating Lease Liabilities	100,526	103,210
Retirement Benefits Payable	26,991	38,494
Accrued Interest Payable	9,698	2,499
Taxes Payable	7,104	11,901
Other Liabilities	394,083	196,237
Total Liabilities	22,289,882	21,173,330
Commitments and Contingencies (Note 20 and Note 23)
Shareholders’ Equity
Preferred Stock ($.01 par value; authorized 180,000 shares; issued and outstanding: December 31, 2022 and December 31, 2021 - 180,000)	180,000	180,000
Common Stock ($.01 par value; authorized 500,000,000 shares; issued / outstanding: December 31, 2022 -58,733,625 / 39,835,750 and December 31, 2021 - 58,554,669 / 40,253,193)	582	581
Capital Surplus	620,578	602,508
Accumulated Other Comprehensive Loss	(434,658)	(66,382)
Retained Earnings	2,055,912	1,950,375
Treasury Stock, at Cost (Shares: December 31, 2022 - 18,897,875 and December 31, 2021 - 18,301,476)	(1,105,419)	(1,055,471)
Total Shareholders’ Equity	1,316,995	1,611,611
Total Liabilities and Shareholders’ Equity	$ 23,606,877	$ 22,784,941

Consolidated Statements of Condition (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Statement Of Financial Position [Abstract]
Held-to-Maturity: Fair Value	$ 4,615,393	$ 4,646,619
Preferred Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, authorized (in shares)	180,000	180,000
Preferred Stock, issued (in shares)	180,000	180,000
Preferred Stock, outstanding (in shares)	180,000	180,000
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, authorized (in shares)	500,000,000	500,000,000
Common Stock, issued (in shares)	58,733,625	58,554,669
Common Stock, outstanding (in shares)	39,835,750	40,253,193
Treasury Stock (in shares)	18,897,875	18,301,476

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Preferred Stock	Common Stock	Capital Surplus	Accum. Other Comprehensive Income (Loss)	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Treasury Stock
Balance at Beginning of Period at Dec. 31, 2019	$ 1,286,832	$ 3,632		$ 579	$ 582,566	$ (31,112)	$ 1,761,415	$ 3,632	$ (1,026,616)
Beginning Balance (in shares) at Dec. 31, 2019				40,039,695
Increase (decrease) in shareholders' equity
Net Income	153,804						153,804
Other Comprehensive Income (Loss)	$ 38,934					38,934
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2016-13
Share-Based Compensation	$ 7,577				7,577
Common Stock Issued under Purchase and Equity Compensation Plans	9,168			$ 1	1,217		562		7,388
Common Stock Issued under Purchase and Equity Compensation Plans (in shares)				283,482
Common Stock Repurchased	(18,006)								(18,006)
Common Stock Repurchased (in shares)				(203,865)
Cash Dividends Declared Common Stock (per share)	(107,434)						(107,434)
Balance at End of Period at Dec. 31, 2020	1,374,507			$ 580	591,360	7,822	1,811,979		(1,037,234)
Ending Balance (in shares) at Dec. 31, 2020				40,119,312
Increase (decrease) in shareholders' equity
Net Income	253,372						253,372
Other Comprehensive Income (Loss)	(74,204)					(74,204)
Share-Based Compensation	13,267				13,267
Preferred Stock Issued, Net	175,487		$ 180,000		(4,513)
Preferred Stock Issued, Net (in shares)			180,000
Common Stock Issued under Purchase and Equity Compensation Plans	14,048			$ 1	2,394		(1,368)		13,021
Common Stock Issued under Purchase and Equity Compensation Plans (in shares)				507,121
Common Stock Repurchased	(31,258)								(31,258)
Common Stock Repurchased (in shares)				(373,240)
Cash Dividends Declared Common Stock (per share)	(110,633)						(110,633)
Cash Dividends Declared Preferred Stock	(2,975)						(2,975)
Balance at End of Period at Dec. 31, 2021	1,611,611		$ 180,000	$ 581	602,508	(66,382)	1,950,375		(1,055,471)
Ending Balance (in shares) at Dec. 31, 2021			180,000	40,253,193
Increase (decrease) in shareholders' equity
Net Income	225,804						225,804
Other Comprehensive Income (Loss)	(368,276)					(368,276)
Share-Based Compensation	16,066				16,066
Common Stock Issued under Purchase and Equity Compensation Plans	7,287			$ 1	2,004		167		5,115
Common Stock Issued under Purchase and Equity Compensation Plans (in shares)				272,007
Common Stock Repurchased	$ (55,063)								(55,063)
Common Stock Repurchased (in shares)	(627,629)			(689,450)
Cash Dividends Declared Common Stock (per share)	$ (112,557)						(112,557)
Cash Dividends Declared Preferred Stock	(7,877)						(7,877)
Balance at End of Period at Dec. 31, 2022	$ 1,316,995		$ 180,000	$ 582	$ 620,578	$ (434,658)	$ 2,055,912		$ (1,105,419)
Ending Balance (in shares) at Dec. 31, 2022			180,000	39,835,750

Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement Of Stockholders Equity [Abstract]
Dividends Declared Per Common Share	$ 2.80	$ 2.74	$ 2.68

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Activities
Net Income	$ 225,804	$ 253,372	$ 153,804
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Provision for Credit Losses	(7,800)	(50,500)	117,800
Depreciation and Amortization	21,377	21,084	20,205
Amortization of Deferred Loans and Leases Fees, Net	(215)	(16,728)	(3,197)
Amortization and Accretion of Premiums/Discounts on Investment Securities, Net	20,824	36,488	27,586
Amortization of Operating Lease Right-of-Use-Assets	11,843	11,493	12,281
Share-Based Compensation	16,066	13,267	7,578
Benefit Plan Contributions	(1,679)	(1,687)	(1,615)
Deferred Income Taxes	(2,713)	3,020	(42,586)
Gains on Sale of Premises and Equipment		(8,655)	(1,850)
Loss on Agreement to Sell Assets That Will Terminate Certain Leveraged Leases	6,918
Impairment on Leveraged Lease			2,951
Impairment on In-Store Branches Closures and ATMs			4,168
Net Gains on Sales of Loans and Leases	(4,100)	(14,889)	(12,875)
Net (Gains) Losses on Investment Securities	6,111	1,297	(9,932)
Proceeds from Sales of Loans Held for Sale	133,715	508,199	394,196
Originations of Loans Held for Sale	(106,965)	(408,210)	(394,649)
Net Tax Benefits from Share-Based Compensation	166	1,611	485
Net Change in Other Assets and Other Liabilities	13,608	27,989	(127,934)
Net Cash Provided by Operating Activities	332,960	377,151	146,416
Investment Securities Available-for-Sale:
Proceeds from Sales, Prepayments and Maturities	677,087	1,487,043	1,003,432
Purchases	(1,058,922)	(2,100,693)	(2,114,912)
Investment Securities Held-to-Maturity:
Proceeds from Prepayments and Maturities	645,463	1,221,585	1,420,853
Purchases	(91,229)	(2,676,376)	(1,661,180)
Net Change in Loans and Leases	(1,397,056)	(342,767)	(990,169)
Premises and Equipment, Net	(28,761)	(22,372)	(33,287)
Proceeds from Sale of Premises and Equipment		10,246	1,981
Net Cash Used in Investing Activities	(1,253,418)	(2,423,334)	(2,373,282)
Financing Activities
Net Change in Deposits	255,588	2,148,487	2,427,147
Net Change in Short-Term Borrowings	275,000	(150,100)	(3,716)
Proceeds from Other Debt	400,000		50,000
Repayments of Other Debt	(97)	(50,090)	(75,084)
Proceeds from Issuance of Preferred Stock		175,487
Proceeds from Issuance of Common Stock	6,797	13,611	9,389
Repurchase of Common Stock	(55,063)	(31,258)	(18,006)
Cash Dividends Paid on Common Stock	(112,557)	(110,633)	(107,434)
Cash Dividends Paid on Preferred Stock	(7,877)	(2,975)
Net Cash Provided by Financing Activities	761,791	1,992,529	2,282,296
Net Change in Cash and Cash Equivalents	(158,667)	(53,654)	55,430
Cash and Cash Equivalents at Beginning of Period	560,434	614,088	558,658
Cash and Cash Equivalents at End of Period	401,767	560,434	614,088
Supplemental Information
Cash Paid for Interest	49,609	32,044	53,026
Cash Paid for Income Taxes	53,025	48,764	60,182
Non-Cash Investing and Financing Activities:
Transfer of Investment Securities from Available-for-Sale to Held-to-Maturity	1,275,043
Transfers from Loans to Loans Held for Sale	$ 380	$ 34,647	$ 32,423

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Note 1. Summary of Significant Accounting Policies

Basis of Presentation

Bank of Hawai‘i Corporation (the “Parent”) is a Delaware corporation and a bank holding company headquartered in Honolulu, Hawaii. Bank of Hawai‘i Corporation and its subsidiaries (collectively, the “Company”) provide a broad range of financial products and services to customers in Hawaii, Guam, and other Pacific Islands. The majority of the Company’s operations consist of customary commercial and consumer banking services including, but not limited to, lending, leasing, deposit services, trust and investment activities, brokerage services, and trade financing.

The accounting and reporting principles of the Company conform to U.S. generally accepted accounting principles (“GAAP”) and prevailing practices within the financial services industry. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts in the financial statements and accompanying notes. Actual results may differ from those estimates and such differences could be material to the financial statements.

Certain prior period information has been reclassified to conform to the current year presentation.

The following is a summary of the Company’s significant accounting policies:

Consolidation

The accompanying consolidated financial statements include the accounts of the Parent and its subsidiaries. The Parent’s principal operating subsidiary is Bank of Hawai‘i (the “Bank”). All significant intercompany accounts and transactions have been eliminated in consolidation.

Variable Interest Entities

Variable interests are defined as contractual ownership or other interests in an entity that change with fluctuations in an entity’s net asset value. The primary beneficiary consolidates the variable interest entity (“VIE”). The primary beneficiary is defined as the enterprise that has both the power to direct the activities of the VIE that most significantly impact the entity’s economic performance and the obligation to absorb losses or the right to receive benefits that could be significant to the VIE.

The Company has limited partnership interests in several low-income housing partnerships. These partnerships provide funds for the construction and operation of apartment complexes that provide affordable housing to lower-income households. If these developments successfully attract a specified percentage of residents falling in that lower income range, state and/or federal income tax credits are made available to the partners. The tax credits are generally recognized over 10 years for federal and 5 years for state. In order to continue receiving the tax credits each year over the life of the partnership, the low-income residency targets must be maintained.

Unfunded commitments to fund these low-income housing partnerships were $88.8 million and $44.0 million as of December 31, 2022, and December 31, 2021, respectively. These unfunded commitments are unconditional and legally binding and are recorded in other liabilities in the consolidated statements of condition. See Note 18 Affordable Housing Projects Tax Credit Partnerships for more information.

The Company also has limited partnership interests in solar energy tax credit partnership investments. These partnerships develop, build, own and operate solar renewable energy projects. Over the course of these investments, the Company expects to receive federal and state tax credits, tax-related benefits, and excess cash available for distribution, if any. The Company may be called to sell its interest in the limited partnerships through a call option once all investment tax credits have been recognized. Tax benefits associated with these investments are generally recognized over 6 years.

Although these entities meet the definition of a VIE, the Company is not the primary beneficiary of the entities, as the general partner has both the power to direct the activities that most significantly impact the economic performance of the entities and the obligation to absorb losses or the right to receive benefits that could be significant to the entities. While the partnership agreements allow the limited partners, through a majority vote, to remove the general partner, this right is not deemed to be substantive as the general partner can only be removed for cause.

The investments in these entities are initially recorded at cost, which approximates the maximum exposure to loss as a result of the Company’s involvement with these unconsolidated entities. The balance of the Company’s investments in these entities was $175.3 million and $136.6 million as of December 31, 2022, and December 31, 2021, respectively, and is included in other assets in the consolidated statements of condition.

Investment Securities

Investment securities are accounted for according to their purpose and holding period. Trading securities are those that are bought and held principally for the purpose of selling them in the near term. The Company held no trading securities as of December 31, 2022 or December 31, 2021. Available-for-sale investment securities, comprised of debt and mortgage-backed securities, are those that may be sold before maturity due to changes in the Company’s interest rate risk profile or funding needs, and are reported at fair value with unrealized gains and losses, net of taxes, reported as a component of other comprehensive income. Held-to-maturity investment securities, comprised of debt and mortgage-backed securities, are those that management has the positive intent and ability to hold to maturity and are reported at amortized cost.

Realized gains and losses are recorded in noninterest income and are determined on a trade date basis using the specific identification method. Interest and dividends on investment securities are recognized in interest income on an accrual basis. Premiums and discounts are amortized or accreted into interest income using the interest method over the expected lives of the individual securities.

Transfers of debt securities from the available-for-sale category to the held-to-maturity category are made at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer remains in accumulated other comprehensive income and in the carrying value of the held-to-maturity investment security. Premiums or discounts on investment securities are amortized or accreted as an adjustment of yield using the interest method over the estimated life of the security. Unrealized holding gains or losses that remain in accumulated other comprehensive income are also amortized or accreted over the estimated life of the security as an adjustment of yield, offsetting the related amortization of the premium or accretion of the discount.

Loans Held for Sale

Residential mortgage loans with the intent to be sold in the secondary market are accounted for on an aggregate basis under the fair value option. Fair value is primarily determined based on quoted prices for similar loans in active markets. Non-refundable fees and direct loan origination costs related to residential mortgage loans held for sale are recognized as part of the cost basis of the loan at the time of sale. Gains and losses on sales of residential mortgage loans (sales proceeds minus carrying value) are recorded in the mortgage banking component of noninterest income.

Commercial loans that management has an active plan to sell are valued on an individual basis at the lower-of-cost-or fair value. Fair value is primarily determined based on quoted prices for similar loans in active markets or agreed upon sales prices. Any reduction in the loan’s value, prior to being transferred to the held-for-sale category, is reflected as a charge-off of the recorded investment in the loan resulting in a new cost basis, with a corresponding reduction in the allowance for credit losses (the “Allowance”). Further decreases in the fair value of the loan are recognized in noninterest expense.

Loans and Leases

Loans are reported at the principal amount outstanding, net of unearned income including unamortized deferred loan fees and costs, and cumulative net charge-offs. Interest income is recognized on an accrual basis. Loan origination fees, certain direct costs, and unearned discounts and premiums, if any, are deferred and are generally amortized into interest income as yield adjustments using the interest method over the contractual life of the loan. Loan commitment fees are generally recognized into noninterest income. Other credit-related fees are recognized as fee income, a component of noninterest income, when earned.

The Company’s lease financing arrangements primarily consist of equipment and automobile leases. These lease arrangements are classified as sales-type leases despite not receiving a selling profit at lease inception. Sales-type leases are carried at the aggregate of lease payments receivable plus the estimated residual value of leased property, less unearned income. Unearned income on sales-type leases is amortized over the lease term by methods that approximate the interest method. Residual values on leased assets are periodically reviewed for impairment.

Non-Performing Loans and Leases

Generally, all classes of commercial loans and leases are placed on non-accrual status upon becoming contractually past due 90 days as to principal or interest (unless loans and leases are adequately secured by collateral, are in the process of collection, and are reasonably expected to result in repayment), when terms are renegotiated below market levels, or where substantial doubt about full repayment of principal or interest is evident. For residential mortgage and home equity loan classes, loans past due 120 days as to principal or interest may be placed on non-accrual status, and a partial charge-off may be recorded, depending on the collateral value and/or the collectability of the loan. For automobile and other consumer loan classes, the entire outstanding balance of the loan is charged off when the loan becomes 120 days past due as to principal or interest.

When a loan or lease is placed on non-accrual status, the accrued and unpaid interest receivable is reversed and the loan or lease is accounted for on the cash or cost recovery method until qualifying for return to accrual status. All payments received on non-accrual loans and leases are applied against the principal balance of the loan or lease. A loan or lease may be returned to accrual status when all delinquent interest and principal become current in accordance with the terms of the loan or lease agreement and when doubt about repayment is resolved.

Generally, for all classes of loans and leases, a charge-off is recorded when it is probable that a loss has been incurred and when it is possible to determine a reasonable estimate of the loss. For all classes of commercial loans and leases, a charge-off is determined on a judgmental basis after due consideration of the debtor’s prospects for repayment and the fair value of collateral. For the pooled segment of the Company’s commercial and industrial loan class, which consists of small business loans, the entire outstanding balance of the loan remains on accrual status until it is charged off during the month that the loan becomes 120 days past due as to principal or interest. As previously mentioned, for residential mortgage and home equity loan classes, a partial charge-off may be recorded at 120 days past due as to principal or interest depending on the collateral value and/or the collectability of the loan. In the event that a loan or line in the home equity loan class is behind another financial institution’s first mortgage, the entire outstanding balance of the loan is charged off when the loan becomes 120 days past due as to principal or interest, unless the combined loan-to-value ratio is 60% or less. As noted above, loans in the automobile and other consumer loan classes are charged off in its entirety upon the loan becoming 120 days past due as to principal or interest.

Loans Modified in a Troubled Debt Restructuring

Loans are considered to have been modified in a troubled debt restructuring when, due to a borrower’s financial difficulties, the Company makes certain concessions to the borrower that it would not otherwise consider. Modifications may include interest rate reductions, principal or interest forgiveness, forbearance, and other actions intended to minimize economic loss and to avoid foreclosure or repossession of collateral. Generally, a non-accrual loan that has been modified in a troubled debt restructuring remains on non-accrual status for a period of at least 6 months to demonstrate that the borrower is able to meet the terms of the modified loan. However, performance prior to the modification, or significant events that coincide with the modification, are included in assessing whether the borrower can meet the new terms and may result in the loan being returned to accrual status at the time of loan modification or after a shorter performance period. If the borrower’s ability to meet the revised payment schedule is uncertain, the loan remains on non-accrual status.

In March 2022, the FASB issued ASU 2022-02, “Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures.” ASU 2022-02 eliminates the accounting guidance for troubled debt restructurings, while enhancing disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty. ASU 2022-02 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2022. ASU 2022-02 is not expected to have a material impact on the Company’s consolidated financial statements.

Reserve for Credit Losses

The Company’s reserve for credit losses is comprised of the Allowance and the Unfunded Reserve.

Allowance for Credit Losses - Loans and Leases (the “Allowance”)

The current expected credit loss (“CECL”) approach requires an estimate of the credit losses expected over the life of an exposure (or pool of exposures). It replaces the incurred loss approach’s threshold that delayed the recognition of a credit loss until it was probable a loss event was incurred.

The estimate of expected credit losses is based on relevant information about past events, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amounts. Historical loss experience is generally the starting point for estimating expected credit losses. The Company then considers whether the historical loss experience should be adjusted for asset-specific risk characteristics or current conditions at the reporting date that did not exist over the historical period used. The Company also considers future economic conditions and portfolio performance as part of a reasonable and supportable forecast period.

Portfolio segment is defined as the level at which an entity develops and documents a systematic methodology to determine its allowance for credit losses. The Company has designated two portfolio segments of loans and leases, commercial and consumer. These portfolio segments are further disaggregated into classes, which represent loans and leases of similar type, risk characteristics, and methods for monitoring and assessing credit risk. The commercial portfolio segment is disaggregated into four classes, commercial and industrial, commercial mortgage, construction, and lease financing. The consumer portfolio segment is also disaggregated into four classes, residential mortgage, home equity, auto, and other (which is comprised of

revolving credit, installment, and consumer lease financing arrangements). Each commercial and consumer portfolio class is also segmented based on risk characteristics.

Commercial Portfolio Segment

The historical loss experience for the commercial portfolio segment is primarily determined using a Cohort method. This method pools loans into groups (“cohorts”) sharing similar risk characteristics and tracks each cohort’s historical net charge-offs to calculate a historical loss rate. The historical loss rates for each cohort are then averaged to calculate an overall historical loss rate which is applied to current loan balances to arrive at the quantitative baseline portion of the Allowance for most of the commercial portfolio segment.

The Company also considers qualitative adjustments to the quantitative baseline. For example, the Company considers the impact of current environmental factors at the reporting date that did not exist over the period from which historical experience was used. Relevant factors include, but are not limited to, concentrations of credit risk (geographic, large borrower, and industry), economic trends and conditions, changes in underwriting standards, experience and depth of lending staff, trends in delinquencies, and the level of criticized loans.

The Company also incorporates a reasonable and supportable (“R&S”) loss forecast period, which is currently one year, to account for the effect of forecasted economic conditions and other factors on the performance of the commercial portfolio, which could differ from historical loss experience. The Company performs a quarterly asset quality review which includes a review of forecasted gross charge-offs and recoveries, nonperforming assets, criticized loans and leases, and risk rating migration. The asset quality review is reviewed by management and the results are used to consider qualitative adjustments to the quantitative baseline. After the one-year R&S loss forecast period, this adjustment assumes an immediate reversion to historical loss rates for the remaining expected life of the loan.

The Company establishes a specific reserve for individually evaluated loans which do not share similar risk characteristics with the loans evaluated using a collective or pooled basis. These individually evaluated loans are removed from the pooling approach discussed above for the quantitative baseline, and include non-accrual loans, troubled debt restructurings (“TDRs”), and other loans as deemed appropriate by management. In addition, the Company individually evaluates “reasonably expected” TDRs, which are identified by the Company as a commercial loan expected to be classified as a TDR within the next six months. Management judgment is utilized to make this determination.

Consumer Portfolio Segment

The historical loss experience for the consumer portfolio segment is primarily determined using a Vintage method. This method measures historical loss behavior in the form of a historical loss rate for homogenous loan pools that originate in the same period, known as a vintage. The historical loss rates are then applied to origination loan balances by vintage to determine the quantitative baseline portion of the Allowance for most of the consumer portfolio segment. The homogenous loan pools are segmented according to similar risk characteristics (e.g., residential mortgage, home equity) and may be sub-segmented further (e.g., geography, lien position) depending on the product.

The Company also considers qualitative adjustments to the quantitative baseline. For example, the Company considers the impact of current environmental factors at the reporting date that did not exist over the period from which historical experience was used. The environmental factors considered for the consumer portfolio are similar to the aforementioned factors considered for the commercial portfolio.

The Company also incorporates a one-year R&S loss forecast period to account for forecasted economic conditions and other factors on the performance of the consumer portfolio which could differ from historical loss experience. The Company performs a quarterly asset quality review designed to estimate gross charge-offs and recoveries for the forecast period. Management evaluates additional factors that may not be reflected in the net charge-off forecast to determine whether a qualitative adjustment is warranted.

The Company has chosen an immediate reversion back to average historical loss rates following the one-year R&S loss forecast period. The reversion method does not reflect uncertainties beyond the R&S loss forecast period, for which the Company has addressed through other qualitative adjustments.

The Company establishes a specific reserve for individually evaluated loans that do not share similar risk characteristics with the loans evaluated using a collective or pooled basis. These individually evaluated loans include “reasonably expected” TDRs, identified by the Company as a consumer loan for which a borrower’s application of loan modification due to hardship has been approved by the Company.

See Note 4 Loans and Leases and the Allowance for Credit Losses for more information.

Allowance for Credit Losses - Held-to-Maturity (“HTM”) Debt Securities

The Company’s HTM debt securities are also required to utilize the CECL approach to estimate expected credit losses. Substantially all of the Company’s HTM debt securities are issued by U.S. government agencies or U.S. government-sponsored enterprises. These securities carry the explicit and/or implicit guarantee of the U.S. government, are widely recognized as “risk free,” and have a long history of zero credit loss. Therefore, the Company did not record an allowance for credit losses for these securities.

Allowance for Credit Losses - Available-for-Sale (“AFS”) Debt Securities

The impairment model for available-for-sale (“AFS”) debt securities differs from the CECL approach utilized by HTM debt securities because AFS debt securities are measured at fair value rather than amortized cost. Although ASU No. 2016-13 replaced the legacy other-than-temporary impairment (“OTTI”) model with a credit loss model, it retained the fundamental nature of the legacy OTTI model. One notable change from the legacy OTTI model is when evaluating whether credit loss exists, an entity may no longer consider the length of time fair value has been less than amortized cost. For AFS debt securities in an unrealized loss position, the Company first assesses whether it intends to sell, or it is more likely than not that it will be required to sell the security before recovery of its amortized cost basis. If either criteria is met, the security’s amortized cost basis is written down to fair value through income. For AFS debt securities that do not meet the aforementioned criteria, the Company evaluates whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, management considers the extent to which fair value is less than amortized cost, any changes to the rating of the security by a rating agency, and adverse conditions specifically related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance for credit losses is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost basis. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive income. Changes in the allowance for credit losses are recorded as a provision for (or reversal of) credit losses. Losses are charged against the allowance when management believes the uncollectibility of an AFS security is confirmed or when either of the criteria regarding intent or requirement to sell is met. As of December 31, 2022, the Company determined that the unrealized loss positions in AFS securities were not the result of credit losses, and therefore, an allowance for credit losses was not recorded. See Note 3 Investment Securities for more information.

Collateral-Dependent Loans

A financial asset is considered collateral-dependent when the debtor is experiencing financial difficulty and repayment is expected to be provided substantially through the sale or operation of the collateral. For all classes of loans and leases deemed collateral-dependent, the Company elected the practical expedient to estimate expected credit losses based on the collateral’s fair value less cost to sell. In most cases, the Company records a partial charge-off to reduce the loan’s carrying value to the collateral’s fair value less cost to sell. Substantially all of the collateral consists of various types of real estate including residential properties; commercial properties such as retail centers, office buildings, and lodging; agriculture land; and vacant land.

Reserve for Unfunded Commitments

The Unfunded Reserve represents the expected credit losses on off-balance sheet commitments such as unfunded commitments to extend credit and standby letters of credit. However, a liability is not recognized for commitments unconditionally cancellable by the Company. The Unfunded Reserve is recognized as a liability (other liabilities in the consolidated statements of condition) and the offsetting adjustment to the reserve was recognized in provision for credit losses in the consolidated statements of income. The Unfunded Reserve is determined by estimating future draws and applying the expected loss rates on those draws. Future draws are based on historical averages of utilization rates (i.e., the likelihood of draws taken). To estimate future draws on unfunded balances, current utilization rates are compared to historical utilization rates. If current utilization rates are below historical utilization rates, the rate difference is applied to the committed balance to estimate the future draw. Loss rates are estimated by utilizing the same loss rates calculated for the Allowance general reserves. For the commercial portfolio, the historical loss rates were calculated utilizing the Cohort methodology, while the consumer portfolio utilized the Vintage methodology.

Cash and Cash Equivalents

Cash and cash equivalents include cash and due from banks, interest-bearing deposits in other banks, and funds sold. All amounts are readily convertible to cash and have maturities of less than 90 days.

Premises and Equipment

Premises and equipment, including leasehold improvements, are stated at cost, less accumulated depreciation and amortization. Capital leases are included in premises and equipment at the capitalized amount less accumulated amortization.

Premises and equipment are depreciated using the straight-line method over the estimated useful lives of the respective assets. Estimated useful lives generally range up to 30 years for buildings and up to 10 years for equipment. Capitalized leased assets and leasehold improvements are amortized over the shorter of the estimated useful life of the asset or the lease term. Repairs and maintenance are charged to expense as incurred, while improvements which extend the estimated useful life of the asset are capitalized and depreciated over the estimated remaining life of the asset.

Premises and equipment are periodically evaluated for impairment when events or changes in circumstances indicate the carrying amount may not be recoverable. Impairment exists when the expected undiscounted future cash flows of premises and equipment are less than its carrying amount. In that event, the Company records a loss for the difference between the carrying amount and the fair value of the asset based on quoted market prices, if applicable, or a discounted cash flow analysis.

Foreclosed Real Estate

Foreclosed real estate consists of properties acquired through foreclosure proceedings or acceptance of a deed-in-lieu of foreclosure. These properties are recorded at fair value less estimated costs to sell the property. If the recorded investment in the loan exceeds the property’s fair value at the time of acquisition, a charge-off is recorded against the Allowance. If the fair value of the property at the time of acquisition exceeds the carrying amount of the loan, the excess is recorded either as a recovery to the Allowance if a charge-off had previously been recorded, or as a gain on initial transfer in other noninterest income. Subsequent decreases in the property’s fair value and operating expenses of the property are recognized through charges to other noninterest expense. The fair value of the property acquired is based on third party appraisals, broker price opinions, recent sales activity, or a combination thereof, subject to management judgment.

Mortgage Servicing Rights

Mortgage servicing rights are recognized as assets when mortgage loans are sold and the rights to service those loans are retained. Mortgage servicing rights are initially recorded at fair value by using a discounted cash flow model to calculate the present value of estimated future net servicing income.

The Company’s mortgage servicing rights accounted for under the fair value method are carried on the statements of condition at fair value with changes in fair value recorded in mortgage banking income in the period in which the change occurs. Changes in the fair value of mortgage servicing rights are primarily due to changes in valuation inputs, assumptions, and the collection and realization of expected cash flows.

The Company’s mortgage servicing rights accounted for under the amortization method are initially recorded at fair value. However, these mortgage servicing rights are amortized in proportion to and over the period of estimated net servicing income. An impairment analysis is prepared on a quarterly basis by estimating the fair value of the mortgage servicing rights and comparing that value to the carrying amount. A valuation allowance is established when the carrying amount of these mortgage servicing rights exceeds fair value.

Goodwill

Goodwill is initially recorded as the excess of the purchase price over the fair value of the net assets acquired in a business combination and is subsequently evaluated at least annually for impairment. Goodwill impairment testing is performed at the reporting unit level, equivalent to a business segment or one level below. The Company has goodwill assigned to the following reporting unit: Consumer Banking.

The Company performs its annual evaluation of goodwill impairment in the fourth quarter of each year and on an interim basis if events or changes in circumstances indicate that there may be impairment. The Company performs a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. The qualitative factors considered include, but are not limited to, macroeconomic and State of Hawaii economic conditions, industry and market conditions and trends, the Company’s financial performance, market capitalization, stock price, and any Company-specific events relevant to the assessment. If the assessment of qualitative factors indicates that it is not more likely than not that an impairment exists, no further testing is performed; otherwise an impairment test is performed. Subsequent reversals of goodwill impairment are prohibited. For the year ended December 31, 2022, the Company’s goodwill impairment evaluation, based on its qualitative assessment, indicated there was no impairment.

Non-Marketable Equity Securities

The Company is required to own Federal Home Loan Bank (“FHLB”) of Des Moines and Federal Reserve Bank (“FRB”) stock as a condition of membership. These non-marketable equity securities are accounted for at cost which equals par or redemption value. These securities do not have a readily determinable fair value as their ownership is restricted and there is no market for these securities. These securities can only be redeemed or sold at their par value and only to the respective issuing government sponsored institution or to another member institution. The Company records these non-marketable equity securities as a component of other assets, which are periodically evaluated for impairment. Management considers these non-marketable equity securities to be long-term investments. Accordingly, when evaluating these securities for impairment, management considers the ultimate recoverability of the par value rather than by recognizing temporary declines in value.

Bank-Owned Life Insurance

The Company purchases life insurance policies on the lives of certain officers and employees and is the owner and beneficiary of the policies. The Company invests in these Bank-Owned Life Insurance (“BOLI”) policies to provide an efficient form of funding for long-term retirement and other employee benefits costs. The Company records these BOLI policies in the consolidated statements of condition at cash surrender value, with changes recorded in noninterest income in the consolidated statements of income.

Securities Sold Under Agreements to Repurchase

The Company enters into agreements under which it sells securities subject to an obligation to repurchase the same or similar securities. Under these arrangements, the Company may transfer legal control over the assets but still retain effective control through an agreement that both entitles and obligates the Company to repurchase the assets. As a result, securities sold under agreements to repurchase are accounted for as collateralized financing arrangements (i.e., secured borrowings) and not as a sale and subsequent repurchase of securities. The obligation to repurchase the securities is reflected as a liability in the Company’s consolidated statements of condition, while the securities underlying the securities sold under agreements to repurchase remain in the respective asset accounts.

Pension and Postretirement Benefit Plans

The Company incurs certain employment-related expenses associated with its two frozen pension plans and a postretirement benefit plan (the “Plans”). In order to measure the expense associated with the Plans, various assumptions are made including the discount rate, expected return on plan assets, anticipated mortality rates, and expected future healthcare costs. The assumptions are based on historical experience as well as current facts and circumstances. The Company uses a December 31 measurement date for its Plans. As of the measurement date, plan assets are determined based on fair value, generally representing observable market prices. The projected benefit obligation is primarily determined based on the present value of projected benefit distributions at an assumed discount rate.

Net periodic pension benefit costs include interest costs based on an assumed discount rate, the expected return on plan assets based on actuarially derived market-related values, and the amortization of net actuarial gains or losses. Net periodic postretirement benefit costs include service costs, interest costs based on an assumed discount rate, and the amortization of prior service credits and net actuarial gains or losses. The service cost portion of net periodic pension and postretirement benefit costs is recognized in salaries and benefits and interest cost, expected return on plan assets and amortization of net actuarial gains or losses are recognized in other noninterest expense in the consolidated statements of income. Differences between expected and actual results in each year are included in the net actuarial gain or loss amount, which is recognized in other comprehensive income. The net actuarial gain or loss in excess of a 10% corridor is amortized in net periodic benefit cost over the average remaining expected lives of the pension plan participants and over the average remaining future service years of the postretirement benefit plan participants. The prior service credit is amortized over the average remaining service period to full eligibility for participating employees expected to receive benefits.

The Company recognizes in its consolidated statements of condition an asset for a plan’s overfunded status or a liability for a plan’s underfunded status. The Company also measures the Plans’ assets and obligations that determine its funded status as of the end of the year and recognizes those changes in other comprehensive income, net of tax.

Income Taxes

The Parent files a consolidated federal income tax return with the Bank and its subsidiaries. Calculation of the Company’s provision for income taxes requires the interpretation of income tax laws and regulations and the use of estimates and judgments in its determination. The Company is subject to examination by governmental authorities that may give rise to income tax issues due to differing interpretations. Changes to the liability for income taxes also occur due to changes in income tax rates,

implementation of new business strategies, resolution of issues with taxing authorities, and newly enacted statutory, judicial, and regulatory guidance.

Deferred income taxes are provided to reflect the tax effect of temporary differences between financial statement carrying amounts and the corresponding tax basis of assets and liabilities. Deferred income taxes are calculated by applying enacted statutory tax rates and tax laws to future years in which temporary differences are expected to reverse. The impact on deferred tax assets and liabilities from a change in tax rates is recognized in income in the period that the tax rate change is enacted. A deferred tax valuation allowance is established if it is more likely than not that a deferred tax asset will not be realized.

The Company’s tax sharing policy provides for the settlement of income taxes between each relevant subsidiary as if the subsidiary had filed a separate return. Payments are made to the Parent by subsidiaries with tax liabilities and subsidiaries that generate tax benefits receive payments for those benefits as used.

The Company maintains reserves for certain tax positions that arise in the normal course of business. As of December 31, 2022, these positions were evaluated based on an assessment of probabilities as to the likelihood of whether a liability had been incurred. Such assessments are reviewed as events occur and adjustments to the reserves are made as appropriate. In evaluating a tax position for recognition, the Company evaluates whether it is more likely than not that a tax position will be sustained upon examination, including resolution of related appeals or litigation processes, based on the technical merits of the position. If the tax position meets the more likely than not recognition threshold, the tax position is measured and recognized in the Company’s Consolidated Financial Statements as the largest amount of tax benefit that, in management’s judgment, is greater than 50% likely of being realized upon ultimate settlement.

Treasury Stock

Shares of the Parent’s common stock that are repurchased are recorded in treasury stock at cost. On the date of subsequent re-issuance, the treasury stock account is reduced by the cost of such stock on a first-in, first-out basis.

Earnings Per Common Share

Basic earnings per common share is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding for the period. Diluted earnings per common share is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding for the period, assuming conversion of all potentially dilutive common stock equivalents.

Derivative Financial Instruments

In the ordinary course of business, the Company enters into derivative financial instruments as an end-user in connection with its risk management activities and to accommodate the needs of its customers. The Company has elected not to qualify for hedge accounting methods addressed under current provisions of GAAP. Derivative financial instruments are stated at fair value on the consolidated statements of condition with changes in fair value reported in current period earnings.

Share-Based Compensation

The Company may grant share-based compensation to employees and non-employee directors in the form of restricted stock and restricted stock units. The fair value of restricted stock is determined based on the closing price of the Parent’s common stock on the date of grant. The Company recognizes compensation expense related to restricted stock on a straight-line basis over the vesting period for service-based awards, plus additional recognition of costs associated with accelerated vesting based on the projected attainment of Company performance measures. Restricted stock units (“RSUs”) are payable solely in cash which are accounted for as other liabilities in the consolidated statements of condition. The fair value of RSUs is initially valued based on the closing price of the Parent’s common stock on the date of grant and is amortized in the statement of income over the vesting period. The RSUs are subsequently remeasured in the same manner described above at the end of each reporting period until settlement.

Advertising Costs

Advertising costs are expensed the first time that advertising takes place. Advertising costs were $10.0 million, $9.6 million, and $8.3 million for the years ended December 31, 2022, December 31, 2021, and December 31, 2020, respectively.

International Operations

The Bank has operations that are conducted in certain Pacific Islands that are denominated in U.S. dollars. These operations are classified as domestic.

Fair Value Measurements

Fair value measurements apply whenever GAAP requires or permits assets or liabilities to be measured at fair value either on a recurring or nonrecurring basis. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market for an asset or liability in an orderly transaction between market participants at the measurement date. Fair value is based on the assumptions that management believes market participants would use when pricing an asset or liability. Fair value measurement and disclosure guidance established a three-level fair value hierarchy that prioritizes the use of inputs used in valuation methodologies. Management maximizes the use of observable inputs and minimizes the use of unobservable inputs when determining fair value measurements. Management reviews and updates the fair value hierarchy classifications of the Company’s assets and liabilities on a quarterly basis. The three-level fair value hierarchy is as follows:

Level 1:	Inputs to the valuation methodology are quoted prices, unadjusted, for identical assets or liabilities in active markets. A quoted price in an active market provides the most reliable evidence of fair value and shall be used to measure fair value whenever available. A contractually binding sales price also provides reliable evidence of fair value.
Level 2:	Inputs to the valuation methodology include quoted prices for similar assets or liabilities in active markets; inputs to the valuation methodology include quoted prices for identical or similar assets or liabilities in markets that are not active; or inputs to the valuation methodology that utilize model-based techniques for which all significant assumptions are observable in the market.
Level 3:	Inputs to the valuation methodology are unobservable and significant to the fair value measurement; inputs to the valuation methodology that utilize model-based techniques for which significant assumptions are not observable in the market; or inputs to the valuation methodology that requires significant management judgment or estimation, some of which may be internally developed.

In some instances, an instrument may fall into multiple levels of the fair value hierarchy. In such instances, the instrument’s level within the fair value hierarchy is based on the lowest of the three levels (with Level 3 being the lowest) that is significant to the fair value measurement. Our assessment of the significance of an input requires judgment and considers factors specific to the instrument.

See Note 14 Employee Benefits and Note 21 Fair Value of Assets and Liabilities for the required fair value measurement disclosures.

Cash and Cash Equivalents and Restrictions on Cash

12 Months Ended

Dec. 31, 2022

Cash And Cash Equivalents [Abstract]

Cash and Cash Equivalents and Restrictions on Cash

Note 2. Cash and Cash Equivalents and Restrictions on Cash

The Company is required to maintain cash on hand or on deposit with the FRB based on the amount of certain customer deposits, mainly checking accounts. The FRB lowered the reserve requirement ratios on transaction accounts to zero percent effective March 26, 2020, therefore, there were no required reserve balances as of December 31, 2022 and December 31, 2021.

The following table provides a reconciliation of cash and cash equivalents reported within the consolidated statements of condition that sum to the total of the same such amounts shown in the consolidated statements of cash flows:

(dollars in thousands)	December 31, 2022		December 31, 2021
Interest-Bearing Deposits in Other Banks	$	3,724	$	2,571
Funds Sold		81,364		361,536
Cash and Due From Banks		316,679		196,327
Total Cash and Cash Equivalents	$	401,767	$	560,434

Investment Securities

12 Months Ended

Dec. 31, 2022

Investments Debt And Equity Securities [Abstract]

Investment Securities

Note 3. Investment Securities

The amortized cost, gross unrealized gains and losses, and fair value of the Company’s investment securities as of December 31, 2022, and December 31, 2021, were as follows:

(dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
December 31, 2022
Available-for-Sale:
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	248,335	$	638	$	(15,067	)	$	233,906
Debt Securities Issued by States and Political Subdivisions		107,689		158		(12,582	)		95,265
Debt Securities Issued by U.S. Government-Sponsored Enterprises		48,807		—		(179	)		48,628
Debt Securities Issued by Corporations		850,585		809		(56,736	)		794,658
Mortgage-Backed Securities:
Residential - Government Agencies		828,798		245		(96,215	)		732,828
Residential - U.S. Government-Sponsored Enterprises		919,980		1		(126,110	)		793,871
Commercial - Government Agencies - Sponsored Agencies		168,242		—		(22,575	)		145,667
Total Mortgage-Backed Securities		1,917,020		246		(244,900	)		1,672,366
Total	$	3,172,436	$	1,851	$	(329,464	)	$	2,844,823
Held-to-Maturity:
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	131,619	$	—	$	(18,202	)	$	113,417
Debt Securities Issued by States and Political Subdivisions		—		—		—			—
Debt Securities Issued by Corporations		17,014		—		(2,534	)		14,480
Mortgage-Backed Securities:
Residential - Government Agencies		1,848,239		35		(294,047	)		1,554,227
Residential - U.S. Government-Sponsored Enterprises		2,968,322		8		(397,055	)		2,571,275
Commercial - Government Agencies - Sponsored Agencies		448,945		—		(86,951	)		361,994
Total Mortgage-Backed Securities		5,265,506		43		(778,053	)		4,487,496
Total	$	5,414,139	$	43	$	(798,789	)	$	4,615,393
December 31, 2021
Available-for-Sale:
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	248,858	$	1,513	$	(284	)	$	250,087
Debt Securities Issued by States and Political Subdivisions		74,743		1,080		(5	)		75,818
Debt Securities Issued by U.S. Government-Sponsored Enterprises		1,758		33		(11	)		1,780
Debt Securities Issued by Corporations		384,590		2,339		(3,816	)		383,113
Mortgage-Backed Securities:
Residential - Government Agencies		1,327,990		9,818		(18,766	)		1,319,042
Residential - U.S. Government-Sponsored Enterprises		2,127,781		4,792		(42,247	)		2,090,326
Commercial - Government Agencies - Sponsored Agencies		155,164		1,885		(1,159	)		155,890
Total Mortgage-Backed Securities		3,610,935		16,495		(62,172	)		3,565,258
Total	$	4,320,884	$	21,460	$	(66,288	)	$	4,276,056
Held-to-Maturity:
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	131,495	$	287	$	(643	)	$	131,139
Debt Securities Issued by States and Political Subdivisions		—		—		—			—
Debt Securities Issued by Corporations		20,316		76		(249	)		20,143
Mortgage-Backed Securities:
Residential - Government Agencies		1,774,394		12,139		(30,621	)		1,755,912
Residential - U.S. Government-Sponsored Enterprises		2,286,880		15,508		(32,627	)		2,269,761
Commercial - Government Agencies - Sponsored Agencies		481,695		324		(12,355	)		469,664
Total Mortgage-Backed Securities		4,542,969		27,971		(75,603	)		4,495,337
Total	$	4,694,780	$	28,334	$	(76,495	)	$	4,646,619

The Company elected to exclude accrued interest receivable (“AIR”) from the amortized cost basis of debt securities disclosed throughout this footnote. For available-for-sale (“AFS”) debt securities, AIR totaled $11.7 million and $8.4 million as of December 31, 2022, and December 31, 2021, respectively. For held-to-maturity (“HTM”) debt securities, AIR totaled $9.2 million and $8.2 million as of December 31, 2022, and December 31, 2021, respectively. AIR is included in the “accrued interest receivable” line item on the Company’s consolidated statements of condition.

During the third quarter of 2022, the Company transferred at fair value approximately $1.3 billion in available-for-sale investment securities to the held-to-maturity category. The related unrealized after-tax losses of approximately $176.7 million remained in accumulated other comprehensive income (loss) to be amortized over the estimated remaining life of the securities as an adjustment of yield, and recognized in interest income. No gains or losses were recognized at the time of transfer. Management considered the held-to-maturity classification of these investment securities to be appropriate as the Company has the positive intent and ability to hold these securities to maturity.

The table below presents an analysis of the contractual maturities of the Company’s investment securities as of December 31, 2022. Debt securities issued by government agencies (Small Business Administration securities) and mortgage-backed securities are disclosed separately in the table below as these investment securities may prepay prior to their scheduled contractual maturity dates.

(dollars in thousands)	Amortized Cost		Fair Value
Available-for-Sale:
Due in One Year or Less	$	8,299	$	8,284
Due After One Year Through Five Years		420,864		400,125
Due After Five Years Through Ten Years		728,474		667,094
Due After Ten Years		6,380		4,989
		1,164,017		1,080,492
Debt Securities Issued by Government Agencies		91,399		91,965
Mortgage-Backed Securities:
Residential - Government Agencies		828,798		732,828
Residential - U.S. Government-Sponsored Enterprises		919,980		793,871
Commercial - Government Agencies or Sponsored Agencies		168,242		145,667
Total Mortgage-Backed Securities		1,917,020		1,672,366
Total	$	3,172,436	$	2,844,823
Held-to-Maturity:
Due After One Year Through Five Years	$	13,494	$	12,520
Due After Five Years Through Ten Years		124,119		106,682
Due After Ten Years		11,020		8,695
		148,633		127,897
Mortgage-Backed Securities:
Residential - Government Agencies		1,848,239		1,554,227
Residential - U.S. Government-Sponsored Enterprises		2,968,322		2,571,275
Commercial - Government Agencies or Sponsored Agencies		448,945		361,994
Total Mortgage-Backed Securities		5,265,506		4,487,496
Total	$	5,414,139	$	4,615,393

Investment securities with carrying values of $4.1 billion and $2.9 billion as of December 31, 2022, and December 31, 2021, respectively, were pledged to secure deposits of governmental entities and securities sold under agreements to repurchase.

The table below presents the gains and losses from the sales of investment securities for the years ended December 31, 2022, December 31, 2021, and December 31, 2020

(dollars in thousands)	2022			2021			2020
Gross Gains on Sales of Investment Securities	$	1		$	3,825		$	14,257
Gross Losses on Sales of Investment Securities		(6,112	)		(5,122	)		(4,325	)
Net Gains (Losses) on Sales of Investment Securities	$	(6,111	)	$	(1,297	)	$	9,932

The losses on sales of investment securities during the years ended December 31, 2022, December 31, 2021, and December 31, 2020, were due to fees paid to the counterparties of the Company’s prior Visa Class B share sale transactions, which are expensed as incurred.

The following table summarizes the Company’s AFS debt securities in an unrealized loss position for which an allowance for credit losses has not been recorded, aggregated by major security type and length of time in a continuous unrealized loss position:

	Less Than 12 Months					12 Months or Longer					Total
(dollars in thousands)	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
December 31, 2022
Available-for-Sale:
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	28,574	$	(1,118	)	$	127,841	$	(13,949	)	$	156,415	$	(15,067	)
Debt Securities Issued by States and Political Subdivisions		11,341		(1,240	)		49,985		(11,342	)		61,326		(12,582	)
Debt Securities Issued by U.S. Government- Sponsored Enterprises		47,825		(108	)		803		(71	)		48,628		(179	)
Debt Securities Issued by Corporations		438,225		(7,995	)		284,350		(48,741	)		722,575		(56,736	)
Mortgage-Backed Securities:
Residential - Government Agencies		386,809		(30,492	)		340,824		(65,723	)		727,633		(96,215	)
Residential - U.S. Government-Sponsored Enterprises		194,684		(22,294	)		598,986		(103,816	)		793,670		(126,110	)
Commercial - Government Agencies or Sponsored Agencies		98,694		(13,247	)		46,973		(9,328	)		145,667		(22,575	)
Total Mortgage-Backed Securities		680,187		(66,033	)		986,783		(178,867	)		1,666,970		(244,900	)
Total	$	1,206,152	$	(76,494	)	$	1,449,762	$	(252,970	)	$	2,655,914	$	(329,464	)
December 31, 2021
Available-for-Sale:
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	51,455	$	(195	)	$	9,995	$	(89	)	$	61,450	$	(284	)
Debt Securities Issued by States and Political Subdivisions		643		(5	)		—		—			643		(5	)
Debt Securities Issued by U.S. Government- Sponsored Enterprises		814		(10	)		49		(1	)		863		(11	)
Debt Securities Issued by Corporations		249,629		(2,846	)		64,029		(970	)		313,658		(3,816	)
Mortgage-Backed Securities:
Residential - Government Agencies		810,157		(17,131	)		41,471		(1,635	)		851,628		(18,766	)
Residential - U.S. Government-Sponsored Enterprises		1,670,500		(35,711	)		180,205		(6,536	)		1,850,705		(42,247	)
Commercial - Government Agencies or Sponsored Agencies		25,664		(223	)		21,810		(936	)		47,474		(1,159	)
Total Mortgage-Backed Securities		2,506,321		(53,065	)		243,486		(9,107	)		2,749,807		(62,172	)
Total	$	2,808,862	$	(56,121	)	$	317,559	$	(10,167	)	$	3,126,421	$	(66,288	)

The Company does not believe that the AFS debt securities that were in an unrealized loss position as of December 31, 2022, which were comprised of 402 individual securities, represent a credit loss impairment. The gross unrealized loss positions were primarily related to mortgage-backed securities issued by U.S. government agencies or U.S. government-sponsored enterprises. These securities carry the explicit and/or implicit guarantee of the U.S. government, are widely recognized as “risk free,” and have a long history of zero credit loss. Total gross unrealized losses were primarily attributable to changes in interest rates, relative to when the investment securities were purchased, and not due to the credit quality of the investment securities. The Company does not intend to sell the investment securities that were in an unrealized loss position and it is not more likely than not that the Company will be required to sell the investment securities before recovery of their amortized cost basis, which may be at maturity.

Substantially all of the Company’s HTM debt securities are issued by U.S. government agencies or U.S. government-sponsored enterprises. These securities carry the explicit and/or implicit guarantee of the U.S. government, are widely recognized as “risk free,” and have a long history of zero credit loss. Therefore, the Company did not record an allowance for credit losses for these securities as of December 31, 2022.

Interest income from taxable and non-taxable investment securities for the years ended December 31, 2022, December 31, 2021, and December 31, 2020, were as follows:

	Year Ended December 31,
(dollars in thousands)	2022		2021		2020
Taxable	$	151,953	$	125,529	$	125,291
Non-Taxable		92		976		2,058
Total Interest Income from Investment Securities	$	152,045	$	126,505	$	127,349

As of December 31, 2022, and December 31, 2021, the carrying values of the Company’s Federal Home Loan Bank of Des Moines (“FHLB Des Moines”) stock and Federal Reserve Bank stock were as follows:

	December 31,
(dollars in thousands)	2022		2021
Federal Home Loan Bank of Des Moines Stock	$	26,000	$	10,000
Federal Reserve Bank Stock		27,065		26,624
Total	$	53,065	$	36,624

These securities can only be redeemed or sold at their par value and only to the respective issuing government-supported institution or to another member institution. The Company records these non-marketable equity securities as a component of other assets and periodically evaluates these securities for impairment. Management considers these non-marketable equity securities to be long-term investments. Accordingly, when evaluating these securities for impairment, management considers the ultimate recoverability of the par value rather than recognizing temporary declines in value.

Loans and Leases and the Allowance for Credit Losses

12 Months Ended

Dec. 31, 2022

Loans And Leases And Allowance For Loan And Lease Losses [Abstract]

Loans and Leases and the Allowance for Credit Losses

Note 4. Loans and Leases and the Allowance for Credit Losses

Loans and Leases

The Company’s loan and lease portfolio was comprised of the following as of December 31, 2022 and December 31, 2021:

	December 31,
(dollars in thousands)	2022		2021
Commercial
Commercial and Industrial	$	1,389,066	$	1,361,921
Paycheck Protection Program		19,579		126,779
Commercial Mortgage		3,725,542		3,152,130
Construction		260,825		220,254
Lease Financing		69,491		105,108
Total Commercial		5,464,503		4,966,192
Consumer
Residential Mortgage		4,653,072		4,309,602
Home Equity		2,225,950		1,836,588
Automobile		870,396		736,565
Other ¹		432,499		410,129
Total Consumer		8,181,917		7,292,884
Total Loans and Leases	$	13,646,420	$	12,259,076

¹	Comprised of other revolving credit, installment, and lease financing.

The majority of the Company’s lending activity is with customers located in the State of Hawaii. A substantial portion of the Company’s real estate loans are secured by real estate in Hawaii.

Net gains related to sales of residential mortgage loans, recorded as a component of mortgage banking income, were $0.2 million, $7.1 million, and $15.4 million for the years ended December 31, 2022, December 31, 2021, and December 31, 2020, respectively. Net gains on sales of commercial loans were not material for the years ended December 31, 2022, December 31, 2021, and December 31, 2020.

The Company elected to exclude accrued interest receivable from the amortized cost basis of loans disclosed throughout this footnote. As of December 31, 2022, and December 31, 2021, accrued interest receivable for loans totaled $40.1 million and $28.7 million, respectively, and is included in the “accrued interest receivable” line item on the Company’s consolidated statements of condition.

Allowance for Credit Losses (the “Allowance”)

The following presents by portfolio segment, the activity in the Allowance for the years ended December 31, 2022, December 31, 2021, and December 31, 2020.

(dollars in thousands)	Commercial			Consumer			Total
For the Year Ended December 31, 2022
Allowance for Credit Losses:
Balance at Beginning of Period	$	64,950		$	92,871		$	157,821
Loans and Leases Charged-Off		(925	)		(12,417	)		(13,342	)
Recoveries on Loans and Leases Previously Charged-Off		552			7,671			8,223
Net Loans and Leases Recovered (Charged-Off)		(373	)		(4,746	)		(5,119	)
Provision for Credit Losses		(677	)		(7,586	)		(8,263	)
Balance at End of Period	$	63,900		$	80,539		$	144,439

For the Year Ended December 31, 2021
Allowance for Credit Losses:
Balance at Beginning of Period	$	84,847		$	131,405		$	216,252
Loans and Leases Charged-Off		(1,117	)		(16,202	)		(17,319	)
Recoveries on Loans and Leases Previously Charged-Off		506			10,848			11,354
Net Loans and Leases Recovered (Charged-Off)		(611	)		(5,354	)		(5,965	)
Provision for Credit Losses		(19,286	)		(33,180	)		(52,466	)
Balance at End of Period	$	64,950		$	92,871		$	157,821

For the Year Ended December 31, 2020
Allowance for Credit Losses:
Balance at Beginning of Period	$	55,012		$	53,278		$	108,290
Loans and Leases Charged-Off		(1,697	)		(19,341	)		(21,038	)
Recoveries on Loans and Leases Previously Charged-Off		2,328			11,572			13,900
Net Loans and Leases Recovered (Charged-Off)		631			(7,769	)		(7,138	)
Provision for Credit Losses		29,204			85,896			115,100
Balance at End of Period	$	84,847		$	131,405		$	216,252

Credit Quality Indicators

The Company uses several credit quality indicators to manage credit risk in an ongoing manner. The Company uses an internal credit risk rating system that categorizes loans and leases into pass, special mention, or classified categories. Credit risk ratings are applied individually to those classes of loans and leases that have significant or unique credit characteristics that benefit from a case-by-case evaluation. These are typically loans and leases to businesses or individuals in the classes which comprise the commercial portfolio segment. Groups of loans and leases that are underwritten and structured using standardized criteria and characteristics, such as statistical models (e.g., credit scoring or payment performance), are typically risk-rated and monitored collectively. These are typically loans and leases to individuals in the classes which comprise the consumer portfolio segment.

The following are the definitions of the Company’s credit quality indicators:

Pass:

Loans and leases in all classes within the commercial and consumer portfolio segments that are not adversely rated, are contractually current as to principal and interest, and are otherwise in compliance with the contractual terms of the loan or lease agreement. Residential mortgage loans that are past due 90 days or more as to principal or interest may be considered Pass if the current loan-to-value ratio is 60% or less. Home equity loans that are past due 90 days or more as to principal or interest may be considered Pass if: a) the home equity loan is in first lien position and the current loan-to-value ratio is 60% or less; or b) the first mortgage is with the Company and the current combined loan-to-value ratio is 60% or less.

Special Mention:

Loans and leases in all classes within the commercial portfolio segment that have potential weaknesses that deserve management’s close attention. If not addressed, these potential weaknesses may result in deterioration of the repayment prospects for the loan or lease. The Special Mention credit quality indicator is not used for the consumer portfolio segment.

Classified:

Loans and leases in the classes within the commercial portfolio segment that are inadequately protected by the sound worth and paying capacity of the borrower or of the collateral pledged, if any. Classified loans and leases are also those in the classes within the consumer portfolio segment that are past due 90 days or more as to principal or interest. Residential mortgage and home equity loans may be current as to principal and interest, but may be considered Classified for a period of generally up to six months following a loan modification. Following a period of demonstrated performance in accordance with the modified contractual terms, the loan may be removed from Classified status.

For Pass rated credits in the commercial portfolio, most risk ratings are certified at a minimum annually. For Special Mention or Classified Credits, risk ratings are reviewed for appropriateness on an ongoing basis, monthly, or at a minimum, quarterly. The following presents by credit quality indicator, loan class, and year of origination, the amortized cost basis of the Company’s loans and leases as of December 31, 2022.

		Term Loans by Origination Year
(dollars in thousands)	2022			2021		2020		2019		2018		Prior		Revolving Loans		Revolving Loans Converted to Term Loans		Total Loans and Leases
December 31, 2022
Commercial
Commercial and Industrial
Pass		$	360,748	$	348,300	$	224,264	$	59,127	$	46,799	$	71,906	$	257,349	$	155	$	1,368,648
Special Mention			273		-		-		-		96		92		1,357		-		1,818
Classified			7,295		91		1,030		-		1,644		6,267		2,252		21		18,600
Total Commercial and Industrial		$	368,316	$	348,391	$	225,294	$	59,127	$	48,539	$	78,265	$	260,958	$	176	$	1,389,066
Paycheck Protection Program
Pass		$	-	$	5,359	$	14,220	$	-	$	-	$	-	$	-	$	-	$	19,579
Total Paycheck Protection Program		$	-	$	5,359	$	14,220	$	-	$	-	$	-	$	-	$	-	$	19,579
Commercial Mortgage
Pass		$	1,182,831	$	771,375	$	691,054	$	283,553	$	131,055	$	494,924	$	48,771	$	-	$	3,603,563
Special Mention			29,707		37,657		28,105		-		1,482		5,014		-		-		101,965
Classified			182		1,964		8,545		624		-		8,699		-		-		20,014
Total Commercial Mortgage		$	1,212,720	$	810,996	$	727,704	$	284,177	$	132,537	$	508,637	$	48,771	$	-	$	3,725,542
Construction
Pass		$	124,507	$	69,992	$	37,133	$	16,838	$	-	$	297	$	12,058	$	-	$	260,825
Total Construction		$	124,507	$	69,992	$	37,133	$	16,838	$	-	$	297	$	12,058	$	-	$	260,825
Lease Financing
Pass		$	16,959	$	17,823	$	11,408	$	9,768	$	6,379	$	6,444	$	-	$	-	$	68,781
Classified			-		-		-		-		710		-		-		-		710
Total Lease Financing		$	16,959	$	17,823	$	11,408	$	9,768	$	7,089	$	6,444	$	-	$	-	$	69,491
Total Commercial		$	1,722,502	$	1,252,561	$	1,015,759	$	369,910	$	188,165	$	593,643	$	321,787	$	176	$	5,464,503
Consumer
Residential Mortgage
Pass		$	827,909	$	1,304,831	$	1,035,285	$	321,208	$	138,214	$	1,023,841	$	-	$	-	$	4,651,288
Classified			-		-		-		-		552		1,232		-		-		1,784
Total Residential Mortgage		$	827,909	$	1,304,831	$	1,035,285	$	321,208	$	138,766	$	1,025,073	$	-	$	-	$	4,653,072
Home Equity
Pass		$	-	$	-	$	-	$	-	$	-	$	890	$	2,186,598	$	36,114	$	2,223,602
Classified			-		-		-		-		-		25		1,105		1,218		2,348
Total Home Equity		$	-	$	-	$	-	$	-	$	-	$	915	$	2,187,703	$	37,332	$	2,225,950
Automobile
Pass		$	405,440	$	216,039	$	100,608	$	84,052	$	45,301	$	18,366	$	-	$	-	$	869,806
Classified			121		260		23		43		92		51		-		-		590
Total Automobile		$	405,561	$	216,299	$	100,631	$	84,095	$	45,393	$	18,417	$	-	$	-	$	870,396
Other¹
Pass		$	185,347	$	124,759	$	31,343	$	39,902	$	16,364	$	9,853	$	23,228	$	1,020	$	431,816
Classified			117		114		70		148		129		24		59		22		683
Total Other		$	185,464	$	124,873	$	31,413	$	40,050	$	16,493	$	9,877	$	23,287	$	1,042	$	432,499
Total Consumer		$	1,418,934	$	1,646,003	$	1,167,329	$	445,353	$	200,652	$	1,054,282	$	2,210,990	$	38,374	$	8,181,917
Total Loans and Leases		$	3,141,436	$	2,898,564	$	2,183,088	$	815,263	$	388,817	$	1,647,925	$	2,532,777	$	38,550	$	13,646,420

¹	Comprised of other revolving credit, installment, and lease financing.

For the year ended December 31, 2022, $6.2 million in revolving loans were converted to term loans.

The following presents by credit quality indicator, loan class, and year of origination, the amortized cost basis of the Company’s loans and leases as of December 31, 2021.

		Term Loans by Origination Year
(dollars in thousands)	2021			2020		2019		2018		2017		Prior		Revolving Loans		Revolving Loans Converted to Term Loans		Total Loans and Leases
December 31, 2021
Commercial
Commercial and Industrial
Pass		$	455,984	$	301,646	$	79,826	$	68,026	$	27,246	$	75,321	$	256,240	$	471	$	1,264,760
Special Mention			1,966		32,667		-		-		-		101		27,031		-		61,765
Classified			10,851		1,919		87		1,990		505		17,481		2,509		54		35,396
Total Commercial and Industrial		$	468,801	$	336,232	$	79,913	$	70,016	$	27,751	$	92,903	$	285,780	$	525	$	1,361,921
PPP
Pass		$	86,484	$	40,295	$	-	$	-	$	-	$	-	$	-	$	-	$	126,779
Total PPP		$	86,484	$	40,295	$	-	$	-	$	-	$	-	$	-	$	-	$	126,779
Commercial Mortgage
Pass		$	958,719	$	736,155	$	338,160	$	261,991	$	178,436	$	459,337	$	53,386	$	-	$	2,986,184
Special Mention			68,768		39,773		-		30,000		-		6,069		-		-		144,610
Classified			3,740		7,815		640		-		-		9,141		-		-		21,336
Total Commercial Mortgage		$	1,031,227	$	783,743	$	338,800	$	291,991	$	178,436	$	474,547	$	53,386	$	-	$	3,152,130
Construction
Pass		$	67,069	$	94,878	$	40,051	$	-	$	596	$	-	$	17,660	$	-	$	220,254
Total Construction		$	67,069	$	94,878	$	40,051	$	-	$	596	$	-	$	17,660	$	-	$	220,254
Lease Financing
Pass		$	21,637	$	15,075	$	15,697	$	9,902	$	2,004	$	39,937	$	-	$	-	$	104,252
Classified			-		-		-		856		-		-		-		-		856
Total Lease Financing		$	21,637	$	15,075	$	15,697	$	10,758	$	2,004	$	39,937	$	-	$	-	$	105,108
Total Commercial		$	1,675,218	$	1,270,223	$	474,461	$	372,765	$	208,787	$	607,387	$	356,826	$	525	$	4,966,192
Consumer
Residential Mortgage²
Pass		$	1,392,337	$	1,131,330	$	367,525	$	177,215	$	256,825	$	982,759	$	-	$	-	$	4,307,991
Classified			-		-		294		-		905		412		-		-		1,611
Total Residential Mortgage		$	1,392,337	$	1,131,330	$	367,819	$	177,215	$	257,730	$	983,171	$	-	$	-	$	4,309,602
Home Equity²
Pass		$	-	$	-	$	-	$	-	$	-	$	2,986	$	1,795,107	$	35,427	$	1,833,520
Classified			-		-		-		-		-		58		2,649		361		3,068
Total Home Equity		$	-	$	-	$	-	$	-	$	-	$	3,044	$	1,797,756	$	35,788	$	1,836,588
Automobile
Pass		$	301,285	$	152,022	$	138,887	$	91,411	$	33,268	$	18,963	$	-	$	-	$	735,836
Classified			165		85		134		137		120		88		-		-		729
Total Automobile		$	301,450	$	152,107	$	139,021	$	91,548	$	33,388	$	19,051	$	-	$	-	$	736,565
Other¹
Pass		$	172,735	$	49,769	$	92,983	$	44,489	$	16,218	$	6,444	$	25,622	$	1,444	$	409,704
Classified			39		90		183		47		27		17		22		-		425
Total Other		$	172,774	$	49,859	$	93,166	$	44,536	$	16,245	$	6,461	$	25,644	$	1,444	$	410,129
Total Consumer		$	1,866,561	$	1,333,296	$	600,006	$	313,299	$	307,363	$	1,011,727	$	1,823,400	$	37,232	$	7,292,884
Total Loans and Leases		$	3,541,779	$	2,603,519	$	1,074,467	$	686,064	$	516,150	$	1,619,114	$	2,180,226	$	37,757	$	12,259,076

¹	Comprised of other revolving credit, installment, and lease financing.

²	Certain prior period information has been reclassified to conform to current presentations.

For the year ended December 31, 2021, $4.1 million in revolving loans were converted to term loans.

Aging Analysis

Loans and leases are considered to be past due once becoming 30 days delinquent. For the consumer portfolio, this generally represents two missed monthly payments. The following presents by class, an aging analysis of the Company’s loan and lease portfolio as of December 31, 2022, and December 31, 2021.

(dollars in thousands)	30 - 59 Days Past Due		60 - 89 Days Past Due		Past Due 90 Days or More		Non- Accrual		Total Past Due and Non- Accrual		Current		Total Loans and Leases		Non- Accrual Loans and Leases that are Current ²
As of December 31, 2022
Commercial
Commercial and Industrial	$	252	$	9	$	—	$	37	$	298	$	1,388,768	$	1,389,066	$	37
Paycheck Protection Program		—		—		—		—		—		19,579		19,579		—
Commercial Mortgage		—		—		—		3,309		3,309		3,722,233		3,725,542		3,309
Construction		—		—		—		—		—		260,825		260,825		—
Lease Financing		—		—		—		—		—		69,491		69,491		—
Total Commercial		252		9		—		3,346		3,607		5,460,896		5,464,503		3,346
Consumer
Residential Mortgage		3,016		721		2,429		4,239		10,405		4,642,667		4,653,072		1,729
Home Equity		1,639		960		1,673		4,022		8,294		2,217,656		2,225,950		664
Automobile		13,293		1,988		589		—		15,870		854,526		870,396		—
Other ¹		2,318		1,302		683		—		4,303		428,196		432,499		—
Total Consumer		20,266		4,971		5,374		8,261		38,872		8,143,045		8,181,917		2,393
Total	$	20,518	$	4,980	$	5,374	$	11,607	$	42,479	$	13,603,941	$	13,646,420	$	5,739

As of December 31, 2021
Commercial
Commercial and Industrial	$	2,006	$	14	$	—	$	243	$	2,263	$	1,359,658	$	1,361,921	$	151
PPP		—		—		—		—		—		126,779		126,779		—
Commercial Mortgage		—		—		—		8,205		8,205		3,143,925		3,152,130		8,205
Construction		—		—		—		—		—		220,254		220,254		—
Lease Financing		—		—		—		—		—		105,108		105,108		—
Total Commercial		2,006		14		—		8,448		10,468		4,955,724		4,966,192		8,356
Consumer
Residential Mortgage		2,046		1,263		3,159		3,305		9,773		4,299,829		4,309,602		—
Home Equity		1,791		748		3,456		4,881		10,876		1,825,712		1,836,588		1,544
Automobile		7,804		1,495		729		—		10,028		726,537		736,565		—
Other ¹		2,686		904		426		—		4,016		406,113		410,129		—
Total Consumer		14,327		4,410		7,770		8,186		34,693		7,258,191		7,292,884		1,544
Total	$	16,333	$	4,424	$	7,770	$	16,634	$	45,161	$	12,213,915	$	12,259,076	$	9,900

¹	Comprised of other revolving credit, installment, and lease financing.

²	Represents non-accrual loans that are not past due 30 days or more; however, full payment of principal and interest as originally structured is still not expected.

Non-Accrual Loans and Leases

The following presents the non-accrual loans and leases as of December 31, 2022, and December 31, 2021.

	December 31, 2022						December 31, 2021
(dollars in thousands)	Non-accrual loans with a related ACL		Non-accrual loans without a related ACL		Total Non-accrual loans		Total Non-accrual loans
Commercial
Commercial and Industrial	$	37	$	—	$	37	$	243
Commercial Mortgage		—		3,309		3,309		8,205
Total Commercial		37		3,309		3,346		8,448
Consumer
Residential Mortgage		4,239		—		4,239		3,305
Home Equity		4,022		—		4,022		4,881
Total Consumer		8,261		—		8,261		8,186
Total	$	8,298	$	3,309	$	11,607	$	16,634

All payments received while on non-accrual status are applied against the principal balance of the loan or lease. The Company does not recognize interest income while loans or leases are on non-accrual status.

Modifications

A modification of a loan constitutes a troubled debt restructuring (“TDR”) when the Company for economic or legal reasons related to a borrower’s financial difficulties grants a concession to the borrower that it would not otherwise consider. Loans modified in a TDR were $47.3 million and $70.0 million as of December 31, 2022, and December 31, 2021, respectively. As of December 31, 2022, and December 31, 2021, there were $0.2 million in commitments to lend additional funds on loans modified in a TDR.

Loans modified in a TDR may already be on non-accrual status and partial charge-offs have in some cases already been taken against the outstanding loan balance. As a result, loans modified in a TDR may have the financial effect of reducing the specific Allowance associated with the loan because the potential loss has been recognized. An Allowance for impaired commercial and consumer loans that have been modified in a TDR is measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s observable market price, or the estimated fair value of the collateral, less any selling costs, if the loan is collateral dependent. Management exercises significant judgment in developing these estimates.

The following presents by class, information related to loans modified in a TDR during the years ended December 31, 2022, and December 31, 2021.

	Loans Modified as a TDR for the Year Ended December 31, 2022						Loans Modified as a TDR for the Year Ended December 31, 2021
Troubled Debt Restructurings (dollars in thousands)	Number of Contracts		Recorded Investment (as of period end) ¹		Increase in Allowance (as of period end)		Number of Contracts		Recorded Investment (as of period end) ¹		Increase in Allowance (as of period end)
Commercial
Commercial and Industrial		2	$	210	$	15		7	$	251	$	4
Total Commercial		2		210		15		7		251		4
Consumer
Residential Mortgage		6		1,441		71		15		5,889		612
Home Equity		3		276		5		11		1,793		85
Automobile		152		2,860		39		341		7,130		95
Other ²		49		310		12		132		1,160		42
Total Consumer		210		4,887		127		499		15,972		834
Total		212	$	5,097	$	142		506	$	16,223	$	838

¹	The period end balances reflect all partial paydowns and charge-offs since the modification date. TDRs fully paid off, charged off, or foreclosed upon by period end are not included.

²	Comprised of other revolving credit and installment financing.

The following presents by class, loans modified in a TDR that defaulted during the year ended December 31, 2022, and December 31, 2021, and within twelve months of their modification date. A TDR is considered to be in default once it becomes 60 days or more past due following a modification.

	Year Ended December 31, 2022				Year Ended December 31, 2021
TDRs that Defaulted During the Period, Within Twelve Months of their Modification Date (dollars in thousands)	Number of Contracts		Recorded Investment (as of period end)¹		Number of Contracts		Recorded Investment (as of period end) ¹
Consumer
Residential Mortgage		1		180		1		521
Home Equity		1		65		4		407
Automobile		12		191		38		644
Other ²		10		73		29		189
Total		24	$	509		72	$	1,761

¹	The period end balances reflect all paydowns and charge-offs since the modification date. TDRs fully paid off, charged off, or foreclosed upon by period end are not included.

²	Comprised of other revolving credit and installment financing.

Loans modified in a TDR are closely monitored for delinquency as an early indicator of possible future default. If loans modified in a TDR subsequently default, the Company evaluates the loan for possible further impairment. The specific Allowance associated with the loan may be increased, adjustments may be made in the allocation of the Allowance, or partial charge-offs may be taken to further write-down the carrying value of the loan.

Foreclosure Proceedings

Consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure totaled $3.9 million as of December 31, 2022.

Mortgage Servicing Rights

12 Months Ended

Dec. 31, 2022

Transfers And Servicing Of Financial Assets [Abstract]

Mortgage Servicing Rights

Note 5. Mortgage Servicing Rights

The Company’s portfolio of residential mortgage loans serviced for third parties was $2.6 billion as of December 31, 2022, and $2.7 billion as of December 31, 2021. Substantially all of these loans were originated by the Company and sold to third parties on a non-recourse basis with servicing rights retained. These retained servicing rights are recorded as a servicing asset and are initially recorded at fair value (see Note 21 Fair Value of Assets and Liabilities for more information). Changes to the balance of mortgage servicing rights are recorded in mortgage banking income in the Company’s consolidated statements of income.

The Company’s mortgage servicing activities include collecting principal, interest, and escrow payments from borrowers; making tax and insurance payments on behalf of borrowers; monitoring delinquencies and executing foreclosure proceedings; and accounting for and remitting principal and interest payments to investors. Servicing income, including late and ancillary fees, was $6.0 million for the year ended December 31, 2022, $6.4 million for the year ended December 31, 2021, and $7.2 million for the year ended December 31, 2020. Servicing income is recorded in mortgage banking income in the Company’s consolidated statements of income. The Company’s residential mortgage investor loan servicing portfolio is primarily comprised of fixed rate loans concentrated in Hawaii.

For the years ended December 31, 2022, December 31, 2021, and December 31, 2020, the change in the fair value of the Company’s mortgage servicing rights accounted for under the fair value measurement method was as follows:

(dollars in thousands)	2022			2021			2020
Balance at Beginning of Year	$	800		$	958		$	1,126
Changes in Fair Value Due to Payoffs		(83	)		(158	)		(168	)
Balance at End of Year	$	717		$	800		$	958

For the years ended December 31, 2022, December 31, 2021, and December 31, 2020, the change in the carrying value of the Company’s mortgage servicing rights accounted for under the amortization method was as follows:

(dollars in thousands)	2022			2021			2020
Balance at Beginning of Year	$	21,451		$	18,694		$	23,896
Servicing Rights that Resulted From Asset Transfers		1,217			4,921			3,592
Amortization		(2,595	)		(4,227	)		(4,902	)
Valuation Allowance Recovery (Provision)		1,829			2,063			(3,892	)
Balance at End of Year	$	21,902		$	21,451		$	18,694
Valuation Allowance:
Balance at Beginning of Year	$	(1,829	)	$	(3,892	)	$	—
Valuation Allowance Recovery (Provision)		1,829			2,063			(3,892	)
Balance at End of Year	$	—		$	(1,829	)	$	(3,892	)
Fair Value:
Balance at Beginning of Year	$	21,451		$	18,694		$	25,714
Balance at End of Year	$	27,323		$	21,451		$	18,694

The key data and assumptions used in estimating the fair value of the Company’s mortgage servicing rights as of December 31, 2022, and December 31, 2021 were as follows:

	December 31,
	2022			2021
Weighted-Average Constant Prepayment Rate ¹		4.02	%		10.70	%
Weighted-Average Life (in years)		9.64			6.18
Weighted-Average Note Rate		3.60	%	3.62		%
Weighted-Average Discount Rate ²	9.93		%	7.04		%

¹	Represents annualized loan prepayment rate assumption.

²	Derived from multiple interest rate scenarios that incorporate a spread to a market yield curve and market volatilities.

A sensitivity analysis of the Company’s fair value of mortgage servicing rights to changes in certain key assumptions as of December 31, 2022, and December 31, 2021, is presented in the following table.

	December 31,
(dollars in thousands)	2022			2021
Constant Prepayment Rate
Decrease in fair value from 25 basis points (“bps”) adverse change	$	(346	)	$	(252	)
Decrease in fair value from 50 bps adverse change		(686	)		(498	)
Discount Rate
Decrease in fair value from 25 bps adverse change		(316	)		(223	)
Decrease in fair value from 50 bps adverse change		(626	)		(441	)

This analysis generally cannot be extrapolated because the relationship of a change in one key assumption to the change in the fair value of the Company’s mortgage servicing rights usually is not linear. Also, the effect of changing one key assumption without changing other assumptions is not realistic.

- Definition

The entire disclosure for a transferor's continuing involvement in financial assets that it has transferred in a securitization or asset-backed financing arrangement, the nature of any restrictions on assets reported by an entity in its statement of financial position that relate to a transferred financial asset (including the carrying amounts of such assets), how servicing assets and servicing liabilities are reported, and (for securitization or asset-backed financing arrangements accounted for as sales) when a transferor has continuing involvement with the transferred financial assets and transfers of financial assets accounted for as secured borrowings, how the transfer of financial assets affects an entity's financial position, financial performance, and cash flows.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (c)(3)
-URI https://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (b)(2)
-URI https://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (b)(2)(ii)
-URI https://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (cc)
-URI https://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=128311188&loc=d3e122596-111746

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 3
-Subparagraph (a)(5)
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+ Details

Premises and Equipment

12 Months Ended

Dec. 31, 2022

Property Plant And Equipment [Abstract]

Premises and Equipment

Note 6. Premises and Equipment

The components of the Company’s premises and equipment as of December 31, 2022, and December 31, 2021, were as follows:

(dollars in thousands)	Cost		Accumulated Depreciation and Amortization			Net Book Value
December 31, 2022
Premises	$	380,978	$	(233,744	)	$	147,234
Equipment		141,923		(84,540	)		57,383
Finance Leases		6,593		(4,433	)		2,160
Total	$	529,494	$	(322,717	)	$	206,777

December 31, 2021
Premises	$	366,205	$	(226,515	)	$	139,690
Equipment		145,120		(87,649	)		57,471
Finance Leases		6,593		(4,361	)		2,232
Total	$	517,918	$	(318,525	)	$	199,393

Depreciation and amortization (including finance lease amortization) included in noninterest expense was $21.4 million, $21.1 million, and $20.2 million for the years ended December 31, 2022, December 31, 2021, and December 31, 2020, respectively.

There was no impairment of the Company’s premises and equipment for the years ended December 31, 2022 and December 31, 2021. The Company recorded a $1.6 million impairment of the Company’s premises and equipment for the year ended December 31, 2020, related to the decision to permanently close twelve branches and reduce the number of cash-only ATMs.

Other Assets

12 Months Ended

Dec. 31, 2022

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Other Assets

Note 7. Other Assets

The components of the Company’s other assets as of December 31, 2022, and December 31, 2021, were as follows:

	December 31,
(dollars in thousands)	2022		2021
Federal Home Loan Bank of Des Moines and Federal Reserve Bank Stock	$	53,065	$	36,624
Derivative Financial Instruments		47,717		42,011
Low-Income Housing and Other Equity Investments		175,283		136,647
Deferred Compensation Plan Assets		47,755		56,411
Prepaid Expenses		18,651		17,670
Accounts Receivable		12,168		13,323
Deferred Tax Assets		177,713		42,277
Other		41,636		39,764
Total Other Assets	$	573,988	$	384,727

Deposits

12 Months Ended

Dec. 31, 2022

Deposits [Abstract]

Deposits

Note 8. Deposits

Time Deposits

As of December 31, 2022, and December 31, 2021, the Company’s total time deposits were $1.7 billion and $1.0 billion, respectively. As of December 31, 2022, the contractual maturities of these time deposits were as follows:

(dollars in thousands)	Amount
2023	$	1,420,852
2024		128,304
2025		32,907
2026		102,929
2027		12,972
Thereafter		7,773
Total	$	1,705,737

The amount of time deposits with balances of $100,000 or more was $1.5 billion as of December 31, 2022, and $0.8 billion as of December 31, 2021. As of December 31, 2022, the contractual maturities of these time deposits were as follows:

(dollars in thousands)	Amount
Three Months or Less	$	764,339
Over Three Months through Six Months		202,862
Over Six Months through Twelve Months		348,755
Over Twelve Months		209,003
Total	$	1,524,959

Public Deposits

As of December 31, 2022, and December 31, 2021, deposits of governmental entities of $1.6 billion and $1.2 billion, respectively, required collateralization by acceptable investment securities of the Company.

Securities Sold Under Agreements to Repurchase

12 Months Ended

Dec. 31, 2022

Securities Sold Under Agreements To Repurchase [Abstract]

Securities Sold Under Agreements to Repurchase

Note 9. Securities Sold Under Agreements to Repurchase

Details of the Company’s securities sold under agreements to repurchase as of December 31, 2022, and December 31, 2021 were as follows:

	December 31, 2022					December 31, 2021
(dollars in thousands)	Amounts Outstanding		Weighted-Average Interest Rate		Weighted-Avg Maturity (in years)	Amounts Outstanding		Weighted-Average Interest Rate		Weighted-Avg Maturity (in years)
Securities Sold Under Agreements to Repurchase
Private Institutions	$	725,000	2.97		3.7		450,000	2.46		3.0
Government Entities	$	490	1.55	%	1.9	$	490	1.55	%	2.9
Total	$	725,490	2.96	%	3.7	$	450,490	2.46	%	3.0

As of December 31, 2022, all of our repurchase agreements were at fixed interest rates. Remaining terms ranged from 2024 to 2029.

The following table presents the remaining contractual maturities of the Company’s repurchase agreements as of December 31, 2022, and December 31, 2021, disaggregated by the class of collateral pledged.

	Remaining Contractual Maturity of Repurchase Agreements
(dollars in thousands)	Up to 90 days		91-365 days		1-3 Years		After 3 Years		Total
December 31, 2022
Class of Collateral Pledged:
Debt Securities Issued by States and Political Subdivisions	$	—	$	—	$	—	$	490	$	490
Mortgage-Backed Securities:
Residential - Government Agencies		—		—		28,673		—		28,673
Residential - U.S. Government-Sponsored Enterprises		—		—		396,327		300,000		696,327
Total	$	—	$	—	$	425,000	$	300,490	$	725,490

December 31, 2021
Class of Collateral Pledged:
Debt Securities Issued by States and Political Subdivisions	$	—	$	—	$	—	$	490	$	490
Mortgage-Backed Securities:
Residential - Government Agencies		—		—		38,685		13,407		52,092
Residential - U.S. Government-Sponsored Enterprises		—		—		236,315		161,593		397,908
Total	$	—	$	—	$	275,000	$	175,490	$	450,490

Other Debt

12 Months Ended

Dec. 31, 2022

Debt Disclosure [Abstract]

Other Debt

Note 10. Other Debt

The Company’s other debt as of December 31, 2022, and December 31, 2021, were as follows:

	December 31,
(dollars in thousands)	2022		2021
Federal Home Loan Bank of Des Moines Advances	$	400,000	$	—
Finance Lease Obligations		10,294		10,391
Total	$	410,294	$	10,391

As a member of the FHLB, the Bank may borrow funds from the FHLB in amounts up to 45% of the Bank’s total assets, provided the Bank is able to pledge an adequate amount of qualified assets to secure the borrowings. As of December 31, 2022, FHLB advances totaled $400.0 million with a weighted-average interest rate of 4.16% and maturity dates during 2027. As of December 31, 2022, the Company had an undrawn line of credit with the FHLB of $2.8 billion. See Note 4 Loans and Leases and the Allowance for Credit Losses for loans pledged to the FHLB as of December 31, 2022, and December 31, 2021.

Finance lease obligations relate to office space at the Company’s headquarters. The lease began in 1993 and has a 60 year term.

As of December 31, 2022, the Company had an undrawn line of credit with the FRB of $603.4 million. See Note 4 Loans and Leases and the Allowance for Credit Losses for loans pledged to the FRB as of December 31, 2022, and December 31, 2021.

Shareholders' Equity

12 Months Ended

Dec. 31, 2022

Stockholders Equity Note [Abstract]

Shareholders' Equity

Note 11. Shareholders’ Equity

Regulatory Capital

The table below sets forth the minimum required capital amounts and ratios for well capitalized institutions and the actual capital amounts and ratios for the Company and the Bank as of December 31, 2022, and December 31, 2021:

(dollars in thousands)	Well Capitalized Minimum Ratio			Company			Bank
As of December 31, 2022
Common Shareholders’ Equity				$	1,141,507		$	1,279,736
Common Equity Tier 1 Capital					1,554,741			1,704,570
Tier 1 Capital					1,730,228			1,704,570
Total Capital					1,875,430			1,849,772
Common Equity Tier 1 Capital Ratio		6.5	%		10.92	%		11.98	%
Tier 1 Capital Ratio		8.0	%		12.15	%		11.98	%
Total Capital Ratio		10.0	%		13.17	%		13.00	%
Tier 1 Leverage Ratio		5.0	%		7.37	%		7.27	%

As of December 31, 2021
Common Shareholders’ Equity				$	1,436,124		$	1,586,473
Common Equity Tier 1 Capital					1,483,455			1,645,405
Tier 1 Capital					1,658,942			1,645,405
Total Capital					1,811,943			1,798,190
Common Equity Tier 1 Capital Ratio		6.5	%		12.12	%		13.47	%
Tier 1 Capital Ratio		8.0	%		13.56	%		13.47	%
Total Capital Ratio		10.0	%		14.81	%		14.72	%
Tier 1 Leverage Ratio		5.0	%		7.32	%		7.26	%

The Company and the Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can result in certain mandatory, and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and classifications are also subject to qualitative judgments by regulators about the components of regulatory capital, risk weightings, and other factors.

Quantitative measures established by regulation to ensure capital adequacy require the Company and the Bank to maintain minimum amounts and ratios of Common Equity Tier 1, Tier 1 and Total Capital. Common Equity Tier 1 Capital is common shareholders’ equity, reduced by certain intangible assets, postretirement benefit liability adjustments, and unrealized gains and losses on investment securities. Tier 1 Capital consists of Common Equity Tier 1 Capital and additional tier 1 capital instruments meeting specified requirements. Total Capital is Tier 1 Capital plus an allowable amount of the reserve for credit losses. Risk-weighted assets are calculated by taking assets and credit equivalent amounts of off-balance-sheet items and assigning them to one of several broad risk categories. Four capital ratios are used to measure capital adequacy: Common Equity Tier 1 Capital divided by risk-weighted assets, as defined; Tier 1 Capital divided by risk-weighted assets; Total Capital divided by risk-weighted assets; and the Tier 1 Leverage ratio, which is Tier 1 Capital divided by quarterly adjusted average total assets.

In addition to the minimum risk-based capital requirements, all banks must hold additional capital, referred to as the capital conservation buffer (which is in the form of common equity) under the U.S. Basel III capital framework, to avoid being subject to limits on capital distributions and certain discretionary bonus payments to officers. The capital conservation buffer is a minimum of 2.5% of additional capital in addition to the minimum risk-based capital ratios.

As of December 31, 2022, the Company and the Bank were well capitalized as defined in the regulatory framework for prompt corrective action. The capital conservation buffer requirements do not currently result in any limitations on distributions or discretionary bonuses for the Company or the Bank. There were no conditions or events since December 31, 2022, that management believes have changed the Company or the Bank’s capital classifications.

The Company elected to apply the modified transition provision related to the impact of the CECL accounting standard on regulatory capital, as provided by the U.S. banking agencies’ March 2020 interim final rule that was finalized on September 30, 2020. Under the modified CECL transition provision, the regulatory capital impact of the Day 1 adjustment to the allowance for credit losses (after-tax), upon the January 1, 2020, CECL adoption date, was deferred, and was phased-in to regulatory capital at 25% per year commencing January 1, 2022. For the ongoing impact of CECL, the Company is allowed to defer the regulatory capital impact of the allowance for credit losses in an amount equal to 25% of the change in the allowance for credit losses (pre-tax) recognized through earnings for each period between January 1, 2020, and December 31, 2021. The cumulative adjustment to the allowance for credit losses between January 1, 2020, and December 31, 2021, was also phased-in to regulatory capital at 25% per year commencing January 1, 2022.

Dividends

Dividends paid by the Parent are substantially funded from dividends received from the Bank. The Bank is subject to federal and state regulatory restrictions that limit cash dividends and loans to the Parent. These restrictions generally require advance approval from the Bank’s regulator for payment of dividends in excess of the sum of net income for the current calendar year and the retained net income of the prior two calendar years.

Common Stock Repurchase Program

The Parent has a common stock repurchase program in which shares repurchased are held in treasury stock for reissuance in connection with share-based compensation plans and for general corporate purposes. For the year ended December 31, 2022, the Parent repurchased 627,629 shares of common stock under its share repurchase program at an average cost per share of $79.41 and total cost of $49.8 million. From the beginning of the stock repurchase program in July 2001 through December 31, 2022, the Parent repurchased a total of 58.0 million shares of common stock at an average cost of $41.17 per share and total cost of $2.4 billion. The actual amount and timing of future share repurchases, if any, will depend on market conditions, applicable SEC rules and various other factors.

Preferred Stock Issuance

On June 15, 2021, the Company issued and sold 7,200,000 depositary shares (the “depositary shares”), each representing a 1/40th ownership interest in a share of 4.375% Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series A, par value $0.01 per share (the “Series A Preferred Stock”). The Series A Preferred Stock has a liquidation preference of $

1,000 per share. Net proceeds, after underwriting discounts and expenses, totaled $175.5 million. Dividends on the Series A Preferred Stock are not cumulative and will be paid when declared by the Parent’s Board of Directors to the extent that the Company have legally available funds to pay dividends. If declared, dividends will accrue and be payable quarterly, in arrears, on the liquidation preference amount, on a non-cumulative basis, at a rate of 4.375% per annum. Holders of the Series A Preferred Stock will not have voting rights, except with respect to certain changes in the terms of the preferred stock, certain dividend non-payments and as otherwise required by applicable law. The Company may redeem the Series A Preferred Stock at its option, (i) in whole or in part, from time to time, on any dividend payment date on or after August 1, 2026 or (ii) in whole but not in part, at any time within 90 days following a regulatory capital treatment event, in either case at a redemption price equal to $1,000 per share (equivalent to $25 per depositary share), plus any declared and unpaid dividends.

Accumulated Other Comprehensive Income

The following table presents the components of other comprehensive income (loss), net of tax:

(dollars in thousands)	Before Tax			Tax Effect			Net of Tax
Year Ended December 31, 2022
Net Unrealized Gains (Losses) on Investment Securities:
Net Unrealized Gains (Losses) Arising During the Period	$	(523,221	)	$	(138,678	)	$	(384,543	)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income:
Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities ¹		10,680			2,831			7,849
Net Unrealized Gains (Losses) on Investment Securities		(512,541	)		(135,847	)		(376,694	)
Defined Benefit Plans:
Net Actuarial Gains (Losses) Arising During the Period		9,525			2,525			7,000
Amortization of Net Actuarial Losses (Gains)		2,175			576			1,599
Amortization of Prior Service Credit		(246	)		(65	)		(181	)
Defined Benefit Plans, Net		11,454			3,036			8,418
Other Comprehensive Income (Loss)	$	(501,087	)	$	(132,811	)	$	(368,276	)

Year Ended December 31, 2021
Net Unrealized Gains (Losses) on Investment Securities:
Net Unrealized Gains (Losses) Arising During the Period	$	(111,084	)	$	(29,440	)	$	(81,644	)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income:
(Gain) Loss on Sale		(3,798	)		(1,007	)		(2,791	)
Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities ¹		648			171			477
Net Unrealized Gains (Losses) on Investment Securities		(114,234	)		(30,276	)		(83,958	)
Defined Benefit Plans:
Net Actuarial Gains (Losses) Arising During the Period		10,842			2,874			7,968
Amortization of Net Actuarial Losses (Gains)		2,676			709			1,967
Amortization of Prior Service Credit		(246	)		(65	)		(181	)
Defined Benefit Plans, Net		13,272			3,518			9,754
Other Comprehensive Income (Loss)	$	(100,962	)	$	(26,758	)	$	(74,204	)

Year Ended December 31, 2020
Net Unrealized Gains (Losses) on Investment Securities:
Net Unrealized Gains (Losses) Arising During the Period	$	58,763		$	15,600		$	43,163
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income:
(Gain) Loss on Sale		(77	)		(50	)		(27	)
Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities ¹		397			105			292
Net Unrealized Gains (Losses) on Investment Securities		59,083			15,655			43,428
Defined Benefit Plans:
Net Actuarial Gains (Losses) Arising During the Period		(8,187	)		(2,170	)		(6,017	)
Amortization of Net Actuarial Losses (Gains)		2,318			614			1,704
Amortization of Prior Service Credit		(246	)		(65	)		(181	)
Defined Benefit Plans, Net		(6,115	)		(1,621	)		(4,494	)
Other Comprehensive Income (Loss)	$	52,968		$	14,034		$	38,934

The amount relates to the amortization/accretion of unrealized gains and losses related to the Company's reclassification of available-for-sale investment securities to the held-to-maturity category. The unrealized net gains/losses will be amortized/accreted over the remaining life of the investment securities as an adjustment of yield.

The following table presents the changes in each component of accumulated other comprehensive income (loss), net of tax:

(dollars in thousands)	Investment Securities- Available- For-Sale			Investment Securities- Held-To- Maturities			Defined Benefit Plans			Accumulated Other Comprehensive Income (Loss)
Year Ended December 31, 2022
Balance at Beginning of Period	$	(32,940	)	$	54		$	(33,496	)	$	(66,382	)
Other Comprehensive Income (Loss) Before Reclassifications		(384,543	)		—			7,000			(377,543	)
Unrealized Net Losses Related to the Transfer of Securities from Available-for-Sale to Held-to-Maturity		176,700			(176,700	)		—			—
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)		—			7,849			1,418			9,267
Total Other Comprehensive Income (Loss)		(207,843	)		(168,851	)		8,418			(368,276	)
Balance at End of Period	$	(240,783	)	$	(168,797	)	$	(25,078	)	$	(434,658	)

Year Ended December 31, 2021
Balance at Beginning of Period	$	51,495		$	(423	)	$	(43,250	)	$	7,822
Other Comprehensive Income (Loss) Before Reclassifications		(81,644	)		—			7,968			(73,676	)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)		(2,791	)		477			1,786			(528	)
Total Other Comprehensive Income (Loss)		(84,435	)		477			9,754			(74,204	)
Balance at End of Period	$	(32,940	)	$	54		$	(33,496	)	$	(66,382	)

Year Ended December 31, 2020
Balance at Beginning of Period	$	8,359		$	(715	)	$	(38,756	)	$	(31,112	)
Other Comprehensive Income (Loss) Before Reclassifications		43,163			—			(6,017	)		37,146
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)		(27	)		292			1,523			1,788
Total Other Comprehensive Income (Loss)		43,136			292			(4,494	)		38,934
Balance at End of Period	$	51,495		$	(423	)	$	(43,250	)	$	7,822

The following table presents the amounts reclassified out of each component of accumulated other comprehensive income (loss):

Details about Accumulated Other Comprehensive Income (Loss) Components	Amount Reclassified from Accumulated Other Comprehensive Income (Loss)¹									Affected Line Item in the Statement Where Net Income Is Presented
(dollars in thousands)	Year Ended December 31,
	2022			2021			2020
Amortization of Unrealized Holding Gains (Losses) on Investment Securities Held-to-Maturity	$	(10,680	)	$	(648	)	$	(397	)	Interest Income
		2,831			171			105		Provision for Income Tax
		(7,849	)		(477	)		(292	)	Net of Tax
Sales of Investment Securities Available-for-Sale		—			3,798			77		Investment Securities Gains (Losses), Net
		—			(1,007	)		(50	)	Provision for Income Tax
		—			2,791			27		Net of Tax

Amortization of Defined Benefit Plans Items
Prior Service Credit ²		246			246			246
Net Actuarial Losses ²		(2,175	)		(2,676	)		(2,318	)
		(1,929	)		(2,430	)		(2,072	)	Total Before Tax
		511			644			549		Provision for Income Tax
		(1,418	)		(1,786	)		(1,523	)	Net of Tax

Total Reclassifications for the Period	$	(9,267	)	$	528		$	(1,788	)	Net of Tax

¹	^{Amounts in parentheses indicate reductions to net income.}

²	^{These accumulated other comprehensive income (loss) components are included in the computation of net periodic benefit cost and are included in Other Noninterest Expense on the consolidated statements of income (see Note 14 Pension Plans and Postretirement Benefit Plan for additional details).}

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI https://asc.fasb.org/topic&trid=2208762

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Earnings Per Common Share

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Earnings Per Common Share

Note 12. Earnings Per Common Share

Earnings per common share is computed using the two-class method. The following is a reconciliation of the weighted average number of common shares used in the calculation of basic and diluted earnings per share and antidilutive stock options and restricted stock outstanding for the years ended December 31, 2022, December 31, 2021, and December 31, 2020:


(dollars in thousands, except shares and per share amounts)	2022		2021		2020
Numerator:
Net Income Available to Common Shareholders	$	217,927	$	250,397	$	153,804

Denominator:
Weighted Average Common Shares Outstanding - Basic		39,601,089		39,837,798		39,726,210
Dilutive Effect of Equity Based Awards		186,913		215,866		165,897
Weighted Average Common Shares Outstanding - Diluted		39,788,002		40,053,664		39,892,107

Earnings Per Common Share:
Basic	$	5.50	$	6.29	$	3.87
Diluted	$	5.48	$	6.25	$	3.86

Antidilutive Stock Options and Restricted Stock Outstanding		—		41,802		113,410

Business Segments

12 Months Ended

Dec. 31, 2022

Segment Reporting [Abstract]

Business Segments

Note 13. Business Segments

The Company’s business segments are defined as Consumer Banking, Commercial Banking, and Treasury and Other. The Company’s internal management accounting process measures the performance of these business segments. This process, which is not necessarily comparable with the process used by any other financial institution, uses various techniques to assign balance sheet and income statement amounts to the business segments, including allocations of income, expense, the provision for credit losses, and capital. This process is dynamic and requires certain allocations based on judgment and other subjective factors. Unlike financial accounting, there is no comprehensive authoritative guidance for management accounting that is equivalent to GAAP. Previously reported results have been reclassified to conform to the current reporting structure.

The net interest income of the business segments reflects the results of a funds transfer pricing process that matches assets and liabilities with similar interest rate sensitivity and maturity characteristics and reflects the allocation of net interest income related to the Company’s overall asset and liability management activities on a proportionate basis. The basis for the allocation of net interest income is a function of the Company’s assumptions that are subject to change based on changes in current interest rates and market conditions. Funds transfer pricing also serves to transfer interest rate risk to Treasury. However, the other business segments have some latitude to retain certain interest rate exposures related to customer pricing decisions within guidelines.

The provision for credit losses for the Consumer Banking and Commercial Banking business segments reflects the actual net charge-offs of those business segments. The amount of the consolidated provision for loan and lease losses is based on the methodology that the Company used to estimate our consolidated Allowance. The residual provision for credit losses to arrive at the consolidated provision for credit losses is included in Treasury and Other.

Noninterest income and expense includes allocations from support units to business units. These allocations are based on actual usage where practicably calculated or by management’s estimate of such usage.

The provision for income taxes is allocated to business segments using a 26% effective income tax rate. However, the provision for income taxes for our Leasing business unit (included in the Commercial Banking segment) and Auto Leasing portfolio and Pacific Century Life Insurance business unit (both included in the Consumer Banking segment) are assigned their actual effective income tax rates due to the unique relationship that income taxes have with their products. The residual income tax expense or benefit to arrive at the consolidated effective tax rate is included in Treasury and Other.

Consumer Banking

Consumer Banking offers a broad range of financial products and services, including loan, deposit and insurance products; private banking and international client banking services; trust services; investment management; and institutional investment advisory services. Consumer Banking also provides a full service brokerage offering equities, mutual funds, life insurance, and annuity products. Loan and lease products include residential mortgage loans, home equity lines of credit, automobile loans and leases, personal lines of credit, installment loans, small business loans and leases, and credit cards. Deposit products include checking, savings, and time deposit accounts. Private banking and personal trust groups assist individuals and families in building and preserving their wealth by providing investment, credit, and trust services to high-net-worth individuals. The investment management group manages portfolios utilizing a variety of investment products. Also within Consumer Banking, institutional client services offer investment advice to corporations, government entities, and foundations. Products and services from Consumer Banking are delivered to customers through 51 branch locations and 320 ATMs throughout Hawaii and the Pacific Islands, e-Bankoh (online banking service), a customer service center, and a mobile banking service.

Commercial Banking

Commercial Banking offers products including corporate banking, commercial real estate loans, commercial lease financing, auto dealer financing, and deposit products. Commercial lending and deposit products are offered to middle-market and large companies in Hawaii and the Pacific Islands. In addition, Commercial Banking offers deposit products to government entities in Hawaii. Commercial real estate mortgages focus on customers that include investors, developers, and builders predominantly domiciled in Hawaii. Commercial Banking also includes international banking and provides merchant services to its customers.

Treasury and Other

Treasury consists of corporate asset and liability management activities, including interest rate risk management and a foreign currency exchange business. This segment’s assets and liabilities (and related interest income and expense) consist of interest-bearing deposits, investment securities, federal funds sold and purchased, and short and long-term borrowings. The primary sources of noninterest income are from bank-owned life insurance, net gains from the sale of investment securities, and foreign exchange income related to customer-driven currency requests from merchants and island visitors. The net residual effect of the transfer pricing of assets and liabilities is included in Treasury, along with the elimination of intercompany transactions.

Other organizational units (Technology, Operations, Marketing, Human Resources, Finance, Credit and Risk Management, and Corporate and Regulatory Administration) provide a wide-range of support to the Company’s other income earning segments. Expenses incurred by these support units are charged to the business segments through an internal cost allocation process.

Selected business segment financial information as of and for the years ended December 31, 2022, December 31, 2021, and December 31, 2020 were as follows:

(dollars in thousands)	Consumer Banking			Commercial Banking			Treasury and Other			Consolidated Total
Year Ended December 31, 2022 ¹
Net Interest Income	$	327,940		$	209,272		$	3,346		$	540,558
Provision for Credit Losses		5,324			(205	)		(12,919	)		(7,800	)
Net Interest Income After Provision for Credit Losses		322,616			209,477			16,265			548,358
Noninterest Income		126,336			25,937			5,268			157,541
Noninterest Expense		(330,561	)		(70,601	)		(14,103	)		(415,265	)
Income Before Income Taxes		118,391			164,813			7,430			290,634
Provision for Income Taxes		(29,974	)		(40,659	)		5,803			(64,830	)
Net Income	$	88,417		$	124,154		$	13,233		$	225,804
Total Assets as of December 31, 2022 ¹	$	8,545,896		$	5,522,916		$	9,538,065		$	23,606,877

Year Ended December 31, 2021 ¹
Net Interest Income	$	284,597		$	194,409		$	18,284		$	497,290
Provision for Credit Losses		5,764			201			(56,465	)		(50,500	)
Net Interest Income After Provision for Credit Losses		278,833			194,208			74,749			547,790
Noninterest Income		131,292			30,637			9,424			171,353
Noninterest Expense		(304,177	)		(64,470	)		(24,942	)		(393,589	)
Income Before Income Taxes		105,948			160,375			59,231			325,554
Provision for Income Taxes		(26,474	)		(39,070	)		(6,638	)		(72,182	)
Net Income	$	79,474		$	121,305		$	52,593		$	253,372
Total Assets as of December 31, 2021 ¹	$	7,701,447		$	5,107,001		$	9,976,493		$	22,784,941

Year Ended December 31, 2020 ¹
Net Interest Income	$	293,451		$	188,626		$	14,245		$	496,322
Provision for Credit Losses		8,087			(948	)		110,661			117,800
Net Interest Income (Loss) After Provision for Credit Losses		285,364			189,574			(96,416	)		378,522
Noninterest Income		128,399			34,523			21,487			184,409
Noninterest Expense		(289,590	)		(63,294	)		(20,923	)		(373,807	)
Income (Loss) Before Income Taxes		124,173			160,803			(95,852	)		189,124
Provision for Income Taxes		(31,563	)		(40,081	)		36,324			(35,320	)
Net Income (Loss)	$	92,610		$	120,722		$	(59,528	)	$	153,804
Total Assets as of December 31, 2020 ¹	$	7,507,825		$	5,116,807		$	7,979,019		$	20,603,651

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Employee Benefits

12 Months Ended

Dec. 31, 2022

Compensation And Retirement Disclosure [Abstract]

Employee Benefits

Note 14. Employee Benefits

The Company has defined contribution plans, defined benefit plans, and a postretirement benefit plan.

Defined Contribution Plans

The Bank of Hawai‘i Retirement Savings Plan (the “Savings Plan”) has three Company contribution components in addition to employee contributions: 1) 401(k) matching, as described below; 2) a 3% fixed amount based on eligible compensation; and 3) a discretionary value-sharing contribution.

Under the 401(k) matching component, participating employees may contribute up to 50% of their eligible compensation (within federal limits) to the Savings Plan. The Company makes matching contributions on behalf of participants equal to $1.25 for each $1.00 contributed by participants, up to 2% of the participants’ eligible compensation, and $0.50 for every $1.00 contributed by participants over 2%, up to 5% of the participants’ eligible compensation. A 3% fixed contribution and a discretionary value-sharing contribution, that is linked to the Company’s financial goals, are made regardless of whether the participating employee contributes to the Savings Plan and are invested in accordance with the participant’s selection of investment options available under the Savings Plan. The Company also has a non-qualified savings plan which covers certain employees with compensation exceeding Internal Revenue Service (“IRS”) limits on pay amounts in the allocation of the Savings Plan’s benefits. Total expense for all components of the Company’s defined contribution plans was $13.2 million, $16.0 million, and $14.0 million for the years ended December 31, 2022, December 31, 2021, and December 31, 2020, respectively.

Defined Benefit Plans

The Company has two defined benefit plans (the “Pension Plans”). In 1995, the Company froze its non-contributory, qualified defined benefit retirement plan (the “Retirement Plan”) and the excess retirement plan (the “Excess Plan”), which covered employees of the Company and participating subsidiaries who met certain eligibility requirements. Beginning January 1, 2001, the Pension Plans no longer provided for compensation increases in the determination of benefits. The projected benefit obligation is equal to the accumulated benefit obligation due to the frozen status of the Pension Plans.

The assets of the Retirement Plan primarily consist of equity and fixed income mutual funds.

The Excess Plan is a non-qualified excess retirement benefit plan which covers certain employees of the Company and participating subsidiaries with compensation exceeding IRS limits on pay amounts applicable to the Pension Plan’s benefit formula. The Excess Plan has no plan assets. The Excess Plan’s projected benefit obligation and accumulated benefit obligation were $2.7 million and $3.3 million for December 31, 2022, and December 31, 2021, respectively.

Postretirement Benefit Plan

The Company’s postretirement benefit plan provides retirees hired before January 1, 2012, with medical and dental insurance coverage. For eligible participants that retired before 2008 and met certain age requirements, the Company and retiree share in the cost of providing postretirement benefits where both the employer and retiree pay a portion of the insurance premiums. Eligible participants who retired before 2008 who did not meet certain age requirements continued on the Company’s benefit plans, but pay for their full insurance premiums. Participants who retired on or after January 1, 2008, who had medical or dental coverage under the Company’s plans immediately before retirement and meet certain age and years of service requirements as of December 31, 2008, are also eligible to participate in the Company’s benefit plans, but must pay for their full insurance premiums. Retirees age 65 and older are provided with a Medicare supplemental plan subsidy. Most employees of the Company who have met certain eligibility requirements are covered by this plan. Participants who retired on or after January 1, 2008, who met certain age and/or years of service requirements, are eligible for the Health Reimbursement Account (“HRA”) program. The HRA program provides retirees with an initial credit based on years of service. Thereafter, an annual credit up to a maximum of $1,200 is provided into the HRA. The retiree may use the HRA for medical, vision, prescription drug and dental premiums, co-payments, and medically necessary health care expenses that are not covered by any medical or dental insurance program or flexible health spending account.

The plan was amended to provide access-only coverage for employees hired on or after January 1, 2012, and lowered eligibility for access from age 55 to age 50. These retirees continue on the medical and dental plan until age 65 paying the full premium. As of December 31, 2022, and December 31, 2021, the Company had no segregated assets to provide for postretirement benefits.

The following table provides a reconciliation of changes in benefit obligation and fair value of plan assets, as well as the funded status recognized in the Company’s consolidated statements of condition for the Pension Plans and postretirement benefit plan for the years ended December 31, 2022, and December 31, 2021.

	Pension Benefits						Postretirement Benefits
(dollars in thousands)	2022			2021			2022			2021
Benefit Obligation at Beginning of Year	$	110,585		$	117,647		$	29,270		$	31,507
Service Cost		—			—			584			678
Interest Cost		3,097			2,924			861			816
Actuarial Losses (Gains)		(22,049	)		(2,817	)		(7,577	)		(2,514	)
Employer Benefits Paid ¹		(7,179	)		(7,169	)		(1,209	)		(1,217	)
Benefit Obligation at End of Year	$	84,454		$	110,585		$	21,929		$	29,270
Fair Value of Plan Assets at Beginning of Year	$	101,294		$	97,890		$	—		$	—
Actual Return on Plan Assets		(15,261	)		10,103			—			—
Employer Contributions		470			470			1,209			1,217
Employer Benefits Paid ¹		(7,179	)		(7,169	)		(1,209	)		(1,217	)
Fair Value of Plan Assets at End of Year	$	79,324		$	101,294		$	—		$	—
Funded Status at End of Year ²	$	(5,130	)	$	(9,291	)	$	(21,929	)	$	(29,270	)

¹	Participants' contributions relative to the postretirement benefit plan were offset against employer benefits paid in the table above. Participants' contributions for postretirement benefits were $0.8 million for the years ended December 31, 2022, and December 31, 2021.

²	^{Amounts are recognized in Retirement Benefits Payable in the consolidated statements of condition.}

The changes in actuarial losses (gains) related to the Company’s Pension and postretirement benefit Plans are mainly due to changes in discount rates for the years ended December 31, 2022, and December 31, 2021. For the year ended December 31, 2022, the change in discount rate resulted in a $21.9 million decrease to the Company’s Pension Plans liability and a $7.5 million decrease to the Company’s postretirement benefit plan liability. For the year ended December 31, 2021, the change in discount rate resulted in a $4.3 million decrease to the Company’s Pension Plans liability and a $1.3 million decrease to the Company’s postretirement benefit plan liability.

The following presents the amounts recognized in the Company’s accumulated other comprehensive income for the Pension Plans and postretirement benefit plan as of December 31, 2022, and December 31, 2021.

	Pension Benefits						Postretirement Benefits
(dollars in thousands)	2022			2021			2022		2021
Amounts Recognized in Accumulated Other Comprehensive Income (Loss), Net of Tax
Net Actuarial Gains (Losses)	$	(31,984	)	$	(35,014	)	$	5,803	$	235
Net Prior Service Credit		—			—			1,103		1,283
Total Amounts Recognized in Accumulated Other Comprehensive Income (Loss), Net of Tax	$	(31,984	)	$	(35,014	)	$	6,906	$	1,518

Components of net periodic benefit cost for the Company’s Pension Plans and the postretirement benefit plan are presented in the following table for the years ended December 31, 2022, December 31, 2021, and December 31, 2020.

	Pension Benefits									Postretirement Benefits
(dollars in thousands)	2022			2021			2020			2022			2021			2020
Service Cost	$	—		$	—		$	—		$	584		$	678		$	578
Interest Cost		3,097			2,924			3,627			861			816			945
Expected Return on Plan Assets		(4,840	)		(4,592	)		(5,028	)		—			—			—
Amortization of:
Prior Service Credit ¹		—			—			—			(246	)		(246	)		(246	)
Net Actuarial Losses (Gains) ¹		2,175			2,676			2,318			—			—			—
Net Periodic Benefit Cost	$	432		$	1,008		$	917		$	1,199		$	1,248		$	1,277

¹	Represents reclassification adjustments from accumulated other comprehensive income during the period.

Assumptions used to determine the benefit obligations as of December 31, 2022, and December 31, 2021, for the Company’s Pension Plans and postretirement benefit plan were as follows:

	Pension Benefits						Postretirement Benefits
	2022			2021			2022			2021
Weighted Average Assumptions as of December 31:
Discount Rate		5.51	%		2.89	%		5.58	%		3.00	%
Health Care Cost Trend Rate Assumed For Next Year		—			—			6.20	%		5.70	%

The health care cost trend rate is assumed to decrease annually, until reaching the ultimate trend rate of 4.0% in 2047.

Assumptions used to determine the net periodic benefit cost for the Company’s Pension Plans and postretirement benefit plan for the years ended December 31, 2022, December 31, 2021, and December 31, 2020, were as follows:

	Pension Benefits									Postretirement Benefits
	2022			2021			2020			2022			2021			2020
Weighted Average Assumptions as of December 31:
Discount Rate		2.89	%		2.55	%		3.36	%		3.00	%		2.66	%		3.42	%
Expected Long-Term Rate of Return on Plan Assets		5.25	%		5.25	%		5.75	%		—			—			—
Health Care Cost Trend Rate		—			—			—			5.70	%		5.50	%		5.70	%

A combination of factors is used by management in determining the expected long-term rate of return on plan assets. Historical return experience for major asset categories are evaluated and current market factors, such as inflation and interest rates, are considered in determining the expected long-term rate of return assumption.

The Company expects to contribute $0.4 million to the Pension Plans and $1.4 million to the postretirement benefit plan for the year ending December 31, 2023.

As of December 31, 2022, expected benefits to be paid in each of the next five years and in the aggregate for the five years thereafter were as follows:

(dollars in thousands)	Pension Benefits		Postretirement Benefits
2023	$	7,471	$	1,377
2024		7,426		1,402
2025		7,393		1,467
2026		7,316		1,521
2027		7,201		1,585
Years 2028-2032		33,630		8,573

Retirement Plan Assets

The Company’s overall investment strategy is to maintain the purchasing power of the current assets and all future contributions by producing positive rates of return on plan assets; achieve capital growth towards the attainment of full funding of the Retirement Plan’s termination liability; maximize returns within reasonable and prudent levels of risk; and control costs of administering the plan and managing the investments. The long-term investment objective is to achieve an overall annualized total return, gross of fees, in line with the blended benchmark index comprised of 36% MSCI USA IMI Index, 24% MSCI ACWI ex-US IMI Index, and 40% Barclays Aggregate Bond Index.

Subject to liquidity requirements, the asset allocation targets are 60% for equity securities, 40% for fixed income securities with a 10% to 20% range permitted from the strategic targets, and zero to 20% for cash. Within the equity securities portfolio, the range for domestic securities is from 50% to 100% and the range for international securities is from 0% to 50%. All assets selected for the Retirement Plan must have a readily ascertainable market value and must be readily marketable.

Due to market fluctuations or cash flows, the allocation for each asset class may be breached by as much as 5% on a temporary basis. However, asset allocations are expected to conform to target ranges within 90 days of such an occurrence.

The fair values of the Retirement Plan assets as of December 31, 2022, and December 31, 2021, by asset category were as follows:

	Fair Value Measurements
Asset Category (dollars in thousands)	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)		Total as of Dec. 31, 2022		Total as of Dec. 31, 2021
Cash	$	589	$	—	$	—	$	589	$	618
Equity Securities – Mutual Funds:
Large-Cap		4,979		—		—		4,979		511
Mixed-Cap		23,632		—		—		23,632		33,108
International		18,283		—		—		18,283		29,022
Emerging Market		757		—		—		757		1,786
Fixed Income Securities – Mutual Funds		31,084		—		—		31,084		36,249
Total	$	79,324	$	—	$	—	$	79,324	$	101,294

Quoted prices for these investments were available in active markets, and therefore were classified as Level 1 measurements in the fair value hierarchy.

- Definition

The entire disclosure for retirement benefits.

+ References

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+ Details

Share-Based Compensation

12 Months Ended

Dec. 31, 2022

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Share-Based Compensation

Note 15. Share-Based Compensation

The Company has share-based compensation plans which allow grants of stock options, restricted stock, stock appreciation rights, and restricted stock units to its employees and non-employee directors. The Company’s employee stock option plans are shareholder approved and administered by the Human Resources and Compensation Committee of the Board of Directors. Stock options provide grantees the option to purchase shares of the Parent’s common stock at a specified exercise price and, generally, expire 10 years from the date of grant. Stock option grants include incentive and non-qualified stock options whose vesting may be subject to one or more criteria, including employment or achievement of Company performance measures. Stock option exercise prices were equal to the quoted market price of the Parent’s common stock on the date of grant. Restricted stock provides grantees with rights to shares of common stock upon completion of one or more criteria, including service period, performance or other conditions as established by the Compensation Committee, such as vesting tied to the Company’s financial performance relative to the peer group or achievement of an absolute financial performance target. During the restriction period, all shares are considered outstanding and dividends are paid on the restricted stock. Generally, restricted stock vests over periods ranging from one year to five years from the date of grant. Restricted stock and dividends may be forfeited if an employee terminates prior to vesting.

As of December 31, 2022, total shares authorized under the plans were 2.1 million shares, of which 1.1 million shares were available for future grants.

The Company recognizes compensation expense, measured as the fair value of the share-based award on the date of grant, on a straight-line basis over the requisite service period. Share-based compensation is recorded in the statements of income as a component of salaries and benefits for employees and as a component of other noninterest expense for non-employee directors, with a corresponding increase to capital surplus in shareholders’ equity. For the years ended December 31, 2022, December 31, 2021, and December 31, 2020, compensation expense and the related income tax benefit recognized for stock options and restricted stock were as follows:

(dollars in thousands)	2022		2021		2020
Compensation Expense	$	16,066	$	13,267	$	7,578
Income Tax Benefit		4,262		3,520		2,009

Restricted Stock

As of December 31, 2022, unrecognized compensation expense related to unvested restricted stock was $23.2 million. The unrecognized compensation expense is expected to be recognized over a weighted average period of 2.08 years.

The following table presents the activity for restricted stock:

	Number of Shares			Weighted Average Grant Date Fair Value		Grant Date Fair Value of Restricted Stock that Vested During the Year (in thousands)
Unvested as of December 31, 2019		309,949		$	83.75
Granted		161,168			80.97
Vested		(99,894	)		84.69	$	8,544
Forfeited		(42,454	)		84.36
Unvested as of December 31, 2020		328,769		$	82.02
Granted		292,007			90.23
Vested		(97,278	)		78.55	$	8,673
Forfeited		(22,962	)		86.48
Unvested as of December 31, 2021		500,536		$	87.28
Granted		192,030			85.80
Vested		(138,823	)		83.21	$	11,640
Forfeited		(13,074	)		86.96
Unvested as of December 31, 2022¹		540,669		$	87.81

¹ As of December 31, 2022, 107,975 shares were unvested from service-based grants.

Stock Options

There were no stock options granted during the years ended December 31, 2022, December 31, 2021, and December 31, 2020. All previously issued stock options granted were fully vested prior to December 31, 2018. The Company reissues treasury stock to satisfy stock option exercises.

The following table presents the activity related to stock options under all plans for the year ended December 31, 2022:

	Stock Options				Weighted Average Exercise Price			Weighted Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (in thousands)
Stock Options Outstanding as of January 1, 2022		17,301			$	47.72
Exercised		(16,468	)			47.72
Expired		(833	)			47.72
Stock Options Outstanding as of December 31, 2022		—		—			—			$	—
Stock Options Vested and Exercisable as of December 31, 2022		—		—			—		—

The following summarizes certain stock option activity of the Company for the years ended December 31, 2022, December 31, 2021, and December 31, 2020:

(dollars in thousands)	2022		2021		2020
Intrinsic Value of Stock Options Exercised	$	679	$	6,755	$	2,261
Cash Received from Stock Options Exercised		786		7,473		2,438
Tax Benefits Realized from Stock Options Exercised		166		1,611		485

Income Taxes

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Income Taxes

Note 16. Income Taxes

Provision for Income Taxes

The components of the Company’s provision for income taxes for the years ended December 31, 2022, December 31, 2021, and December 31, 2020, were as follows:

(dollars in thousands)	2022			2021		2020
Current:
Federal	$	59,855		$	58,652	$	65,840
State		7,688			10,510		12,066
Total Current		67,543			69,162		77,906
Deferred:
Federal		(3,247	)		2,254		(31,783	)
State		534			766		(10,803	)
Total Deferred		(2,713	)		3,020		(42,586	)
Provision for Income Taxes	$	64,830		$	72,182	$	35,320

The tax effects of fair value adjustments on AFS investment securities, the amortization of unrealized gains and losses related to investment securities transferred to HTM, and the minimum pension liability adjustment are recorded directly to consolidated shareholders’ equity. Excess tax benefits related to stock options are recorded as a reduction of the provision for income taxes. The net tax charge recorded directly to consolidated shareholders’ equity was $132.7 million for the year ended December 31, 2022. The net tax benefit and net tax charge recorded directly to consolidated shareholders’ equity was $26.8 million and $16.2 million for the years ended December 31, 2021, and December 31, 2020, respectively.

Deferred Tax Liabilities and Assets

As of December 31, 2022, and December 31, 2021, significant components of the Company’s deferred tax liabilities and assets were as follows:

	December 31,
(dollars in thousands)	2022			2021
Deferred Tax Liabilities:
Accelerated Depreciation	$	(7,958	)	$	(8,131	)
Accrued Pension Cost		(11,270	)		(11,270	)
Federal Home Loan Bank of Des Moines Stock		(6,597	)		(2,885	)
Lease Transactions		(25,741	)		(37,585	)
Operating Lease Liabilities		(24,469	)		(25,348	)
Investment in Variable Interest Entities		(700	)		(1,657	)
Deferred Loan Fees		(4,798	)		(3,845	)
Originated Mortgage Servicing Rights		(6,008	)		(6,068	)
Other		(909	)		(915	)
Gross Deferred Tax Liabilities		(88,450	)		(97,704	)
Deferred Tax Assets:
Allowance for Credit Losses		40,056			43,348
Minimum Pension Liability		9,046			12,082
Accrued Expenses		20,066			22,416
Postretirement Benefit Obligations		7,005			7,170
Capital Lease Expenses		2,156			2,163
Operating Lease Right-of-Use Assets		26,648			27,360
Restricted Stock		5,988			4,442
Net Unrealized Losses on Investments Securities		147,716			11,868
Deductible State and Local Taxes		2,360			3,239
Low Income Housing Investments		5,349			3,007
Other		5,995			6,089
Gross Deferred Tax Assets Before Valuation Allowance		272,385			143,184
Valuation Allowance		(6,222	)		(3,203	)
Gross Deferred Tax Assets After Valuation Allowance		266,163			139,981
Net Deferred Tax Assets	$	177,713		$	42,277

Both positive and negative evidence were considered by management in determining the need for a valuation allowance. Negative evidence included the uncertainty regarding the generation of capital gains in future years and restrictions on the ability to sell low-income housing investments during periods when carrybacks/carryforwards of capital losses are allowed. Positive evidence included capital gains in the carryback years. After considering all available evidence, management determined that a valuation allowance to offset deferred tax assets related to low-income housing investments that can only be used to offset capital gains was appropriate. Management determined that a valuation allowance was not required for the remaining deferred tax assets because it is more likely than not that these assets will be realized through future reversals of existing taxable temporary differences, and there will be sufficient future taxable income exclusive of reversing temporary differences. As of December 31, 2022, and December 31, 2021, the Company carried a valuation allowance of $6.2 million and $3.2 million, respectively, related to the deferred tax assets established in connection with the low-income housing investments.

Certain events covered by Internal Revenue Code Section 593(e) will trigger a recapture of base year reserves of acquired thrift institutions. The base year reserves of acquired thrift institutions would be recaptured if an entity ceases to qualify as a bank for federal income tax purposes. The base year reserves of thrift institutions also remain subject to income tax penalty provisions that, in general, require recapture upon certain stock redemptions of, and excess distributions to, shareholders. As of December 31, 2022, retained earnings included $18.2 million of base year reserves for which the deferred federal income tax liability of $4.8 million has not been recognized.

Effective Tax Rate

The following is a reconciliation of the statutory federal income tax rate to the Company’s effective tax rate for the years ended December 31, 2022, December 31, 2021, and December 31, 2020:

	2022			2021			2020
Statutory Federal Income Tax Rate		21.00	%		21.00	%		21.00	%
Increase (Decrease) in Income Tax Rate Resulting From:
State Taxes, Net of Federal Income Tax		2.08			2.85			0.81
Low-Income Housing Investments		1.60			0.77			0.82
Investment Tax Credits		(0.28	)		(0.35	)		(1.24	)
Bank-Owned Life Insurance		(0.72	)		(0.48	)		(0.82	)
Tax-Exempt Income		(0.20	)		(0.24	)		(0.50	)
Leveraged Lease		(0.84	)		(0.10	)		(0.56	)
Other		(0.33	)		(1.28	)		(0.83	)
Effective Tax Rate		22.31	%		22.17	%		18.68	%

Unrecognized Tax Benefits

The Company is required to record a liability, referred to as an unrecognized tax benefit (“UTB”), for the entire amount of benefit taken in a prior or future income tax return when the Company determines that a tax position has a less than 50% likelihood of being accepted by the taxing authority. The following presents a reconciliation of the Company’s liability for UTBs for the years ended December 31, 2022, December 31, 2021, and December 31, 2020:

(dollars in thousands)	2022			2021			2020
Unrecognized Tax Benefits at Beginning of Year	$	4,015		$	5,403		$	6,120
Gross Increases, Related to Tax Positions Taken in a Prior Period		1			261			374
Gross Decreases, Related to Tax Positions Taken in a Prior Period		(26	)		(1,285	)		—
Gross Increases, Related to Current Period Tax Positions		226			234			222
Lapse of Statute of Limitations		(520	)		(598	)		(1,313	)
Unrecognized Tax Benefits at End of Year	$	3,696		$	4,015		$	5,403

As of December 31, 2022, and December 31, 2021, $3.7 million and $4.0 million, respectively, in liabilities for UTBs were related to UTBs that if reversed would have an impact on the Company’s effective tax rate.

Management believes that it is reasonably possible that the Company’s liability for UTBs could further decrease as a result of the expiration of statutes of limitations within the next 12 months. However, management is currently not able to estimate a range of possible change in the amount of the liability for UTBs recorded as of December 31, 2022.

The Company classifies interest and penalties, if any, related to the liability for UTBs as a component of the provision for income taxes. The recorded net tax benefit for interest and penalties was $0.1 million for the year ended December 31, 2022. For the years ended December 31, 2021, and December 31, 2020, the Company recorded a net tax provision of less than $0.1 million for interest and penalties. As of December 31, 2022, and December 31, 2021, the balance of the accrual for possible interest and penalties was $1.3 million and $1.5 million, respectively.

The federal tax returns for 2019 through 2021 remain subject to examination. The Company's State of Hawaii income tax returns for 2015 through 2021 remain subject to examination by the taxing authorities.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Derivative Financial Instruments

12 Months Ended

Dec. 31, 2022

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

Note 17. Derivative Financial Instruments

The notional amount and fair value of the Company’s derivative financial instruments as of December 31, 2022, and December 31, 2021, were as follows:

	December 31, 2022					December 31, 2021
(dollars in thousands)	Notional Amount		Fair Value			Notional Amount		Fair Value
Interest Rate Lock Commitments	$	3,860	$	58		$	45,857	$	1,084
Forward Commitments		3,256		6			58,523		(35	)
Interest Rate Swap Agreements
Receive Fixed/Pay Variable Swaps		1,821,433		(160,914	)		1,400,322		28,742
Pay Fixed/Receive Variable Swaps		1,821,433		38,785			1,400,322		(5,922	)
Foreign Exchange Contracts		52,065		1,745			102,548		(674	)
Conversion Rate Swap Agreement		124,752	NA¹				131,672	NA¹

¹ The conversation rate swap agreements were valued at zero as further reductions to the conversion rate were deemed neither probable nor reasonably estimable.

The following table presents the Company’s derivative financial instruments, their fair values, and their location in the consolidated statements of condition as of December 31, 2022, and December 31, 2021:

	December 31, 2022				December 31, 2021
Derivative Financial Instruments Not Designated as Hedging Instruments ¹ (dollars in thousands)	Asset Derivatives		Liability Derivatives		Asset Derivatives		Liability Derivatives
Interest Rate Lock Commitments	$	64	$	6	$	1,084	$	—
Forward Commitments		10		4		17		52
Interest Rate Swap Agreements		45,831		167,960		40,733		17,913
Foreign Exchange Contracts		1,812		67		177		851
Total	$	47,717	$	168,037	$	42,011	$	18,816

¹	Asset derivatives are included in other assets and liability derivatives are included in other liabilities in the consolidated statements of condition.

The following table presents the Company’s derivative financial instruments and the amount and location of the net gains or losses recognized in the consolidated statements of income for the years ended December 31, 2022, December 31, 2021, and December 31, 2020:

	Location of Net Gains	Year Ended December 31,
Derivative Financial Instruments Not Designated as Hedging Instruments (dollars in thousands)	(Losses) Recognized in the Statements of Income	2022			2021		2020
Interest Rate Lock Commitments	Mortgage Banking	$	(915	)	$	8,771	$	22,348
Forward Commitments	Mortgage Banking		2,348			1,580		(4,274	)
Interest Rate Swap Agreements ¹	Other Noninterest Income		44			77		(129	)
Foreign Exchange Contracts	Other Noninterest Income		1,792			1,462		1,940
Total		$	3,269		$	11,890	$	19,885

¹	The net gains amounts presented in the table above for the years ended December 31, 2021, and 2020, have been updated to properly exclude the fee income generated from the execution of these derivative financial instruments.

Management has received authorization from the Bank’s Board of Directors to use derivative financial instruments as an end-user in connection with the Bank’s risk management activities and to accommodate the needs of the Bank’s customers. As with any financial instrument, derivative financial instruments have inherent risks. Market risk is defined as the risk of adverse financial impact due to fluctuations in interest rates, foreign exchange rates, and equity prices. Market risks associated with derivative financial instruments are balanced with the expected returns to enhance earnings performance and shareholder value, while limiting the volatility of each. The Company uses various processes to monitor its overall market risk exposure, including sensitivity analysis, value-at-risk calculations, and other methodologies.

Derivative financial instruments are also subject to credit and counterparty risk, which is defined as the risk of financial loss if a borrower or counterparty is either unable or unwilling to repay borrowings or settle transactions in accordance with the underlying contractual terms. Credit and counterparty risks associated with derivative financial instruments are similar to those relating to traditional financial instruments. The Company manages derivative credit and counterparty risk by evaluating the creditworthiness of each borrower or counterparty, adhering to the same credit approval process used for commercial lending activities.

As of December 31, 2022, and December 31, 2021, the Company did not designate any derivative financial instruments as formal hedging relationships. The Company’s free-standing derivative financial instruments are required to be carried at their fair value on the Company’s consolidated statements of condition. These financial instruments have been limited to interest rate lock commitments (“IRLCs”), forward commitments, interest rate swap agreements, foreign exchange contracts, and conversion rate swap agreements.

Interest Rate Lock Commitments/Forward Commitments

The Company enters into IRLCs for residential mortgage loans which commit us to lend funds to a potential borrower at a specific interest rate and within a specified period of time. IRLCs that relate to the origination of mortgage loans that will be held for sale are considered derivative financial instruments under applicable accounting guidance. Outstanding IRLCs expose the Company to the risk that the price of the mortgage loans underlying the commitments may decline due to increases in mortgage interest rates from inception of the rate lock to the funding of the loan. To mitigate this risk, the Company utilizes forward commitments as economic hedges against the potential decreases in the values of the loans held for sale. IRLCs and forward commitments are free-standing derivatives which are carried at fair value with changes recorded in the mortgage banking component of noninterest income in the Company’s consolidated statements of income.

Interest Rate Swap Agreements

The Company enters into swap agreements to facilitate the risk management strategies of a small number of commercial banking customers. The Company mitigates the interest rate risk of entering into these agreements by entering into equal and offsetting interest rate swap agreements with highly rated third party financial institutions. The interest rate swap agreements are free-standing derivatives and are recorded at fair value in the Company’s consolidated statements of condition (asset positions are included in other assets and liability positions are included in other liabilities). Fair value changes are recorded in other noninterest income in the Company’s consolidated statements of income. The Company is party to master netting arrangements with its financial institution counterparties; however, the Company does not offset assets and liabilities under these arrangements for financial statement presentation purposes. The master netting arrangements provide for a single net settlement of all swap agreements, as well as collateral, in the event of default on, or termination of, any one contract. Collateral, usually in the form of marketable securities, is posted by the party (i.e., the Company or the financial institution counterparty) with net liability positions in accordance with contract thresholds. The fair values of certain counterparty interest rate swaps are zero due to the settlement of centrally-cleared variation margin rules. The Company had a net asset position and a net liability position with its financial institution counterparties totaling $38.8 million and $5.9 million as of December 31, 2022, and December 31, 2021, respectively. See Note 19 to the Consolidated Financial Statements for more information on the interest rate swap agreements.

Foreign Exchange Contracts

The Company utilizes foreign exchange contracts to offset risks related to transactions executed on behalf of customers. The foreign exchange contracts are free-standing derivatives which are carried at fair value with changes included in other noninterest income in the Company’s consolidated statements of income.

Conversion Rate Swap Agreements

As certain sales of Visa Class B restricted shares were completed, the Company entered into a conversion rate swap agreement with the buyer that requires payment to the buyer in the event Visa further reduces the conversion rate of Class B into Class A unrestricted common shares. In the event of Visa increasing the conversion rate, the buyer would be required to make payment to the Company. As of December 31, 2022, and December 31, 2021, the conversion rate swap agreements were valued at zero (i.e., no contingent liability recorded) as further reductions to the conversion rate were deemed neither probable nor reasonably estimable by management. See Note 3 Investment Securities for more information.

Affordable Housing Projects Tax Credit Partnerships

12 Months Ended

Dec. 31, 2022

Equity Method Investments And Joint Ventures [Abstract]

Affordable Housing Projects Tax Credit Partnerships

Note 18. Affordable Housing Projects Tax Credit Partnerships

The Company makes equity investments in various limited partnerships or limited liability companies that sponsor affordable housing projects utilizing the Low Income Housing Tax Credit (“LIHTC”) pursuant to Section 42 of the Internal Revenue Code. The purpose of these investments is to achieve a satisfactory return on capital, to facilitate the sale of affordable housing product offerings, and to assist in achieving goals associated with the Community Reinvestment Act. The primary activities of these entities include the identification, development, and operation of multi-family housing that is leased to qualifying residential tenants. Generally, these types of investments are funded through a combination of debt and equity.

The Company is a limited partner or non-managing member in each LIHTC limited partnership or limited liability company, respectively. Each of these entities is managed by an unrelated third-party general partner or managing member who exercises significant control over the affairs of the entity. The general partner or managing member has all the rights, powers and authority granted or permitted to be granted to a general partner of a limited partnership or managing member of a limited liability company. Duties entrusted to the general partner or managing member include, but are not limited to: investment in operating companies, company expenditures, investment of excess funds, borrowing funds, employment of agents, disposition of fund property, prepayment and refinancing of liabilities, votes and consents, contract authority, disbursement of funds, accounting methods, tax elections, bank accounts, insurance, litigation, cash reserve, and use of working capital reserve funds. Except for limited rights granted to the limited partner(s) or non-managing member(s) relating to the approval of certain transactions, the limited partner(s) and non-managing members may not participate in the operation, management, or control of the entity’s business, transact any business in the entity’s name or have any power to sign documents for or otherwise bind the entity. In addition, the general partner or managing member may only be removed by the limited partner(s) or managing member(s) in the event of a failure to comply with the terms of the agreement or negligence in performing its duties.

The general partner or managing member of each entity has both the power to direct the activities which most significantly affect the performance of each entity and the obligation to absorb losses or the right to receive benefits that could be significant to the entities. Therefore, the Company has determined that it is not the primary beneficiary of any LIHTC entity. The Company uses the effective yield method to account for its pre-2015 investments in these entities. Beginning January 1, 2015, any new investments that meet the requirements of the proportional amortization method are recognized using the proportional amortization method. The Company’s net affordable housing tax credit investments and related unfunded commitments were $174.5 million and $134.7 million as of December 31, 2022, and December 31, 2021, respectively, and are included in other assets in the consolidated statements of condition.

Unfunded Commitments

As of December 31, 2022, the expected payments for unfunded affordable housing commitments were as follows:

(dollars in thousands)	Amount
2023	$	41,142
2024		12,497
2025		24,115
2026		157
2027		58
Thereafter		10,790
Total Unfunded Commitments	$	88,759

The following table presents tax credits and other tax benefits recognized and amortization expense related to affordable housing for the years ended December 31, 2022, December 31, 2021, and December 31, 2020.

(dollars in thousands)	2022		2021		2020
Effective Yield Method
Tax credits and other tax benefits recognized	$	6,116	$	8,604	$	11,752
Amortization Expense in Provision for Income Taxes		5,185		6,700		8,586

Proportional Amortization Method
Tax credits and other tax benefits recognized	$	15,174	$	10,831	$	6,633
Amortization Expense in Provision for Income Taxes		13,131		9,375		5,729

There were no impairment losses related to LIHTC investments for the years ended December 31, 2022, December 31, 2021, and December 31, 2020.

Balance Sheet Offsetting

12 Months Ended

Dec. 31, 2022

Offsetting [Abstract]

Balance Sheet Offsetting

Note 19. Balance Sheet Offsetting

The Company enters into agreements under which it sells securities subject to an obligation to repurchase the same or similar securities. Under these arrangements, the Company may transfer legal control over the assets but still retain effective control through an agreement that both entitles and obligates the Company to repurchase the assets. As a result, these repurchase agreements are accounted for as collateralized financing arrangements (i.e., secured borrowings) and not as sales and subsequent repurchases of securities. The obligation to repurchase the securities is reflected as a liability in the Company’s consolidated statements of condition, while the securities underlying the repurchase agreements remain in the respective investment securities asset accounts. As a result, there is no offsetting or netting of the investment securities assets with the repurchase agreement liabilities. In addition, as the Company does not enter into reverse Repurchase Agreements, there is no such offsetting to be done with the repurchase agreements.

The right of setoff for a repurchase agreement resembles a secured borrowing, whereby the collateral pledged by the Company would be used to settle the fair value of the repurchase agreement should the Company be in default (e.g., fail to make an interest payment to the counterparty). For private institution repurchase agreements, if the private institution counterparty were to default (e.g., declare bankruptcy), the Company could cancel the repurchase agreement (i.e., cease payment of principal and interest) and attempt collection on the amount of collateral value in excess of the repurchase agreement fair value. The collateral is held by a third party financial institution in the counterparty’s custodial account. The counterparty has the right to sell or repledge the investment securities. For government entity repurchase agreements, the collateral is held by the Company in a segregated custodial account under a tri-party agreement. The Company is required by the counterparty to maintain adequate collateral levels. In the event the collateral fair value falls below stipulated levels, the Company will pledge additional securities. The Company closely monitors collateral levels to ensure adequate levels are maintained, while mitigating the potential risk of over-collateralization in the event of counterparty default.

The following table presents the assets and liabilities subject to an enforceable master netting arrangement, or repurchase agreements, as of December 31, 2022, and December 31, 2021. The swap agreements that the Company have with our commercial banking customers are not subject to an enforceable master netting arrangement, and therefore, are excluded from this table. As previously mentioned, centrally cleared swap agreements between the Company and institutional counterparties are also excluded from this table.

	(i)		(ii)		(iii) = (i)-(ii)		(iv)				(v) = (iii)- (iv)
							Gross Amounts Not Offset in the Statements of Condition
(dollars in thousands)	Gross Amounts Recognized in the Statements of Condition		Gross Amounts Offset in the Statements of Condition		Net Amounts Presented in the Statements of Condition		Netting Adjustments per Master Netting Arrangements		Fair Value of Collateral Pledged ¹		Net Amount
December 31, 2022
Assets:
Interest Rate Swap Agreements:
Institutional Counterparties	$	42,339	$	—	$	42,339	$	42,339	$	—	$	—

Liabilities:
Interest Rate Swap Agreements:
Institutional Counterparties		3,554		—		3,554		3,554		—		—

Repurchase Agreements:
Private Institutions		725,000		—		725,000		—		725,000		—
Government Entities		490		—		490		—		490		—
Total Repurchase Agreements	$	725,490	$	—	$	725,490	$	—	$	725,490	$	—

December 31, 2021
Assets:
Interest Rate Swap Agreements:
Institutional Counterparties	$	26	$	—	$	26	$	26	$	—	$	—

Liabilities:
Interest Rate Swap Agreements:
Institutional Counterparties		5,948		—		5,948		26		5,922		—

Repurchase Agreements:
Private Institutions		450,000		—		450,000		—		450,000		—
Government Entities		490		—		490		—		490		—
Total Repurchase Agreements	$	450,490	$	—	$	450,490	$	—	$	450,490	$	—

The application of collateral cannot reduce the net amount below zero. Therefore, excess collateral is not reflected in this table. For interest rate swap agreements, the fair value of investment securities pledged was $34.8 million and $58.3 million as of December 31, 2022, and December 31, 2021, respectively. For repurchase agreements with private institutions, the fair value of investment securities pledged was $755.9 million and $523.4 million as of December 31, 2022, and December 31, 2021, respectively. For repurchase agreements with government entities, the fair value of investment securities pledged was $0.8 million and $1.3 million as of December 31, 2022, and December 31, 2021, respectively.

Commitments and Contingencies

12 Months Ended

Dec. 31, 2022

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

Note 20. Commitments and Contingencies

The Company’s credit commitments as of December 31, 2022, were as follows:

(dollars in thousands)	December 31, 2022
Unfunded Commitments to Extend Credit	$	3,592,872
Standby Letters of Credit		129,512
Commercial Letters of Credit		24,030
Total	$	3,746,414

Unfunded Commitments to Extend Credit

Commitments to extend credit are agreements to lend to a customer as long as there is no violation of the terms or conditions established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since commitments may expire without being drawn, the total commitment amount does not necessarily represent future cash requirements.

Standby and Commercial Letters of Credit

Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Standby letters of credit generally become payable upon the failure of the customer to perform according to the terms of the underlying contract with the third party, while commercial letters of credit are issued specifically to facilitate commerce and typically result in the commitment being drawn on when the underlying transaction is consummated between the customer and a third party. The contractual amount of these letters of credit represents the maximum potential future payments guaranteed by the Company. The Company has recourse against the customer for any amount it is required to pay to a third party under a standby letter of credit, and generally holds cash or deposits as collateral on those standby letters of credit for which collateral is deemed necessary. Assets valued at $100.8 million secured certain specifically identified standby letters of credit as of December 31, 2022. As of December 31, 2022, the standby and commercial letters of credit had remaining terms ranging from 1 to 17 months.

Contingencies

The Company is subject to various pending and threatened legal proceedings arising out of the normal course of business or operations. On at least a quarterly basis, the Company assesses its liabilities and contingencies in connection with outstanding legal proceedings utilizing the most recent information available. On a case-by-case basis, reserves are established for those legal claims for which it is probable that a loss will be incurred and the amount of such loss can be reasonably estimated. Based on information currently available, management believes that the eventual outcome of these claims against the Company will not be materially in excess of such amounts reserved by the Company. However, in the event of unexpected future developments, it is possible that the ultimate resolution of these matters may result in a loss that materially exceeds the reserves established by the Company.

Fair Value of Assets and Liabilities

12 Months Ended

Dec. 31, 2022

Fair Value Disclosures [Abstract]

Fair Value of Assets and Liabilities

Note 21. Fair Value of Assets and Liabilities

Fair Value Hierarchy

The following is a description of the valuation methodologies and key inputs used to measure assets and liabilities recorded at fair value on a recurring basis. See Note 1 to the Consolidated Financial Statements for more information on our fair value measurements.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

Investment Securities Available-for-Sale

Level 1 investment securities are comprised of debt securities issued by the U.S. Treasury, as quoted prices were available, unadjusted, for identical securities in active markets. Level 2 investment securities were primarily comprised of debt securities issued by the Small Business Administration, states and municipalities, corporations, as well as mortgage-backed securities issued by government agencies and government-sponsored enterprises. Fair values were estimated primarily by obtaining quoted prices for similar assets in active markets or through the use of pricing models. In cases where there may be limited or less transparent information provided by the Company’s third party pricing service, fair value may be estimated by the use of secondary pricing services or through the use of non-binding third party broker quotes.

Loans Held for Sale

The fair value of the Company’s residential mortgage loans held for sale was determined based on quoted prices for similar loans in active markets, and therefore, is classified as a Level 2 measurement.

Mortgage Servicing Rights

The Company estimates the fair value of mortgage servicing rights by using a discounted cash flow model to calculate the present value of estimated future net servicing income. The Company stratifies its mortgage servicing portfolio on the basis of loan type. The assumptions used in the discounted cash flow model are those that the Company believes market participants would use in estimating future net servicing income. Significant assumptions in the valuation of mortgage servicing rights include estimated loan repayment rates, the discount rate, servicing costs, and the timing of cash flows, among other factors. Mortgage servicing rights are classified as Level 3 measurements due to the use of significant unobservable inputs, as well as significant management judgment and estimation.

Other Assets

Other assets recorded at fair value on a recurring basis are primarily comprised of investments related to deferred compensation arrangements. Quoted prices for these investments, primarily in mutual funds, are available in active markets. Thus, the Company’s investments related to deferred compensation arrangements are classified as Level 1 measurements in the fair value hierarchy.

Derivative Financial Instruments

Derivative financial instruments recorded at fair value on a recurring basis are comprised of interest rate lock commitments (“IRLCs”), forward commitments, interest rate swap agreements, foreign exchange contracts, and Visa Class B to Class A shares conversion rate swap agreements. The fair values of IRLCs are calculated based on the value of the underlying loan held for sale, which in turn is based on quoted prices for similar loans in the secondary market. However, this value is adjusted by a factor which considers the likelihood that the loan in a locked position will ultimately close. This factor, the closing ratio, is derived from the Bank’s internal data and is adjusted using significant management judgment. As such, IRLCs are classified as Level 3 measurements. Forward commitments are classified as Level 2 measurements as they are primarily based on quoted prices from the secondary market based on the settlement date of the contracts, interpolated or extrapolated, if necessary, to estimate a fair value as of the end of the reporting period. The fair values of interest rate swap agreements are calculated using a discounted cash flow approach and utilize Level 2 observable inputs such as a market yield curve, effective date, maturity date, notional amount, and stated interest rate. The valuation methodology for interest rate swaps with financial institution counterparties (and the related customer interest rate swaps) is based on the Secured Overnight Financing Rate. In addition, the Company includes in its fair value calculation a credit factor adjustment which is based primarily on management judgment. Thus, interest rate swap agreements are classified as a Level 3 measurement. The fair values of foreign exchange contracts are calculated using the Bank’s multi-currency accounting system which utilizes contract specific information such as currency, maturity date, contractual amount, and strike price, along with market data information such as the spot rates of specific currency and yield curves. Foreign exchange contracts are classified as Level 2 measurements because while they are valued using the Bank’s multi-currency accounting system, significant management judgment or estimation is not required. The fair value of the Visa Class B restricted shares to Class A unrestricted common shares conversion rate swap agreements represent the amount owed by the Company to the buyer of the Visa Class B shares as a result of a reduction of the conversion ratio subsequent to the sales date. As of December 31, 2022, and December 31, 2021, the conversion rate swap agreements were valued at zero as reductions to the conversion ratio were neither probable nor reasonably estimable by management. See Note 17 Derivative Financial Instruments for more information.

The Company is exposed to credit risk if borrowers or counterparties fail to perform. The Company seeks to minimize credit risk through credit approvals, limits, monitoring procedures, and collateral requirements. The Company generally enters into transactions with borrowers of high credit quality and counterparties that carry high quality credit ratings. Credit risk associated with borrowers or counterparties as well as the Company’s non-performance risk is factored into the determination of the fair value of derivative financial instruments.

The table below presents the balances of assets and liabilities measured at fair value on a recurring basis as of December 31, 2022, and December 31, 2021:

(dollars in thousands)	Quoted Prices In Active Markets for Identical Assets or Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
December 31, 2022
Assets:
Investment Securities Available-for-Sale
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	141,944	$	91,962	$	—	$	233,906
Debt Securities Issued by States and Political Subdivisions		—		95,265		—		95,265
Debt Securities Issued by U.S. Government-Sponsored Enterprises		—		48,628		—		48,628
Debt Securities Issued by Corporations		—		794,658		—		794,658
Mortgage-Backed Securities:
Residential - Government Agencies		—		732,828		—		732,828
Residential - U.S. Government-Sponsored Enterprises		—		793,871		—		793,871
Commercial - Government Agencies or Sponsored Agencies		—		145,667		—		145,667
Total Mortgage-Backed Securities		—		1,672,366		—		1,672,366
Total Investment Securities Available-for-Sale		141,944		2,702,879		—		2,844,823
Loans Held for Sale		—		1,035		—		1,035
Mortgage Servicing Rights		—		—		717		717
Other Assets		47,755		—		—		47,755
Derivatives ¹		—		1,822		45,895		47,717
Total Assets Measured at Fair Value on a Recurring Basis as of December 31, 2022	$	189,699	$	2,705,736	$	46,612	$	2,942,047
Liabilities:
Derivatives¹	$	—	$	70	$	167,967	$	168,037
Total Liabilities Measured at Fair Value on a Recurring Basis as of December 31, 2022	$	—	$	70	$	167,967	$	168,037
December 31, 2021
Assets:
Investment Securities Available-for-Sale
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	114,845	$	135,242	$	—	$	250,087
Debt Securities Issued by States and Political Subdivisions		—		75,818		—		75,818
Debt Securities Issued by U.S. Government-Sponsored Enterprises		—		1,780		—		1,780
Debt Securities Issued by Corporations		—		383,113		—		383,113
Mortgage-Backed Securities:
Residential - Government Agencies		—		1,319,042		—		1,319,042
Residential - U.S. Government-Sponsored Enterprises		—		2,090,326		—		2,090,326
Commercial - Government Agencies or Sponsored Agencies		—		155,890		—		155,890
Total Mortgage-Backed Securities		—		3,565,258		—		3,565,258
Total Investment Securities Available-for-Sale		114,845		4,161,211		—		4,276,056
Loans Held for Sale		—		26,746		—		26,746
Mortgage Servicing Rights		—		—		800		800
Other Assets		56,411		—		—		56,411
Derivatives ¹		—		194		41,817		42,011
Total Assets Measured at Fair Value on a Recurring Basis as of December 31, 2021	$	171,256	$	4,188,151	$	42,617	$	4,402,024
Liabilities:
Derivatives ¹	$	—	$	903	$	17,913	$	18,816
Total Liabilities Measured at Fair Value on a Recurring Basis as of December 31, 2021	$	—	$	903	$	17,913	$	18,816

¹	The fair value of each class of derivatives is shown in Note 17 Derivative Financial Instruments.

For the years ended December 31, 2022, and December 31, 2021, the changes in Level 3 assets and liabilities measured at fair value on a recurring basis were as follows:

(dollars in thousands)	Mortgage Servicing Rights ¹			Net Derivative Assets and Liabilities ²
Year Ended December 31, 2022
Balance as of January 1, 2022	$	800		$	23,904
Realized and Unrealized Net Gains (Losses):
Included in Net Income		(83	)		(871	)
Transfers to Loans Held for Sale		—			(112	)
Variation Margin Payments		—			(144,993	)
Balance as of December 31, 2022	$	717		$	(122,072	)
Total Unrealized Net Gains (Losses) Included in Net Income Related to Assets Still Held as of December 31, 2022	$	—		$	(871	)

Year Ended December 31, 2021
Balance as of January 1, 2021	$	958		$	77,880
Realized and Unrealized Net Gains (Losses):
Included in Net Income ³		(158	)		8,848
Transfers to Loans Held for Sale		—			(12,634	)
Variation Margin Payments		—			(50,190	)
Balance as of December 31, 2021	$	800		$	23,904
Total Unrealized Net Gains (Losses) Included in Net Income Related to Assets Still Held as of December 31, 2021	$	—		$	8,848

¹	Realized and unrealized gains and losses related to mortgage servicing rights are reported as a component of mortgage banking income in the Company’s consolidated statements of income.

^{Realized and unrealized gains and losses related to interest rate lock commitments are reported as a component of mortgage banking income in the Company’s consolidated statements of income. Realized and unrealized gains and losses related to interest rate swap agreements are reported as a component of other noninterest income in the Company’s consolidated statements of income.}

³	^{The unrealized net losses included in net income related to assets still held as of December 31, 2021, has been updated to exclude the impact of activities unrelated to the computation of unrealized net losses.}

For Level 3 assets and liabilities measured at fair value on a recurring or nonrecurring basis as of December 31, 2022, and December 31, 2021, the significant unobservable inputs used in the fair value measurements were as follows:

			December 31, 2022												December 31, 2021
(dollars in thousands)	Valuation Technique	Description	Range						Weighted Average¹			Fair Value			Range						Weighted Average¹			Fair Value
Mortgage Servicing Rights	Discounted Cash Flow	Constant Prepayment Rate		2.81	%	-	10.63	%		4.02	%	$	28,040			6.51	%	-	11.48	%		10.70	%	$	22,251
		Discount Rate		8.70	%	-	10.40	%		9.93	%					6.49	%	-	7.08	%		7.04	%

Net Derivative Assets and Liabilities:
Interest Rate Lock Commitments	Pricing Model	Closing Ratio		84.10	%	-	99.00	%		92.86	%	$	58			75.40	%	-	100.00	%		90.47	%	$	1,084
Interest Rate Swap Agreements	Discounted Cash Flow	Credit Factor		0.00	%	-	0.49	%		0.01	%	$	(122,129	)		0.00	%	-	0.49	%		0.14	%	$	22,820

¹ Unobservable inputs for mortgage servicing rights and interest rate lock commitments were weighted by loan amount. Unobservable inputs for interest rate swap agreements were weighted by fair value.

Significant increases (decreases) in any of these inputs in isolation could result in a significantly lower (higher) fair value measurement. Although the constant prepayment rate and the discount rate are not directly interrelated, they generally move in opposite directions of each other.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

The Company may be required periodically to measure certain assets and liabilities at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from the application of lower-of-cost-or-fair value accounting or impairment write-downs of individual assets. The following table represents the assets measured at fair value on a nonrecurring basis as of December 31, 2022.

(dollars in thousands)	Fair Value Hierarchy	Net Carrying Amount		Valuation Allowance
December 31, 2022
Mortgage Servicing Rights - amortization method	Level 3	$	21,902	$	—

December 31, 2021
Mortgage Servicing Rights - amortization method	Level 3	$	21,451	$	(1,829	)

The write-down of mortgage servicing rights accounted for under the amortization method was primarily due to changes in certain key assumptions used to estimate fair value. As previously mentioned, all of the Company's mortgage servicing rights are classified as Level 3 measurements due to the use of significant unobservable inputs, as well as significant management judgment and estimation.

Fair Value Option

The following table reflects the difference between the aggregate fair value and the aggregate unpaid principal balance of the Company’s residential mortgage loans held for sale as of December 31, 2022, and December 31, 2021.

(dollars in thousands)	Aggregate Fair Value		Aggregate Unpaid Principal		Aggregate Fair Value Less Aggregate Unpaid Principal
December 31, 2022
Loans Held for Sale	$	1,035	$	1,016	$	19

December 31, 2021
Loans Held for Sale	$	26,746	$	26,309	$	437

Changes in the estimated fair value of residential mortgage loans held for sale are reported as a component of mortgage banking income in the Company’s consolidated statements of income. For the years ended December 31, 2022, and December 31, 2021, the net gains or losses from the change in fair value of the Company’s residential mortgage loans held for sale were not material.

Financial Instruments Not Recorded at Fair Value on a Recurring Basis

The following presents the carrying amount, fair value, and placement in the fair value hierarchy of the Company’s financial instruments not recorded at fair value on a recurring basis as of December 31, 2022, and December 31, 2021. This table excludes financial instruments for which the carrying amount approximates fair value. For short-term financial assets such as cash and cash equivalents, the carrying amount is a reasonable estimate of fair value due to the relatively short time between the origination of the instrument and its expected realization. For non-marketable equity securities such as Federal Home Loan Bank of Des Moines and Federal Reserve Bank stock, the carrying amount is a reasonable estimate of fair value as these securities can only be redeemed or sold at their par value and only to the respective issuing government-supported institution or to another member institution. For financial liabilities such as noninterest-bearing demand, interest-bearing demand, and savings deposits, the carrying amount is a reasonable estimate of fair value due to these products having no stated maturity.

					Fair Value Measurements
(dollars in thousands)	Carrying Amount		Fair Value		Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
December 31, 2022
Financial Instruments – Assets
Investment Securities Held-to-Maturity	$	5,414,139	$	4,615,393	$	113,417	$	4,501,976	$	—
Loans		13,371,226		12,386,615		—		—		12,386,615

Financial Instruments – Liabilities
Time Deposits		1,705,737		1,679,777		—		1,679,777		—
Securities Sold Under Agreements to Repurchase		725,490		718,614		—		718,614		—
Other Debt ¹		400,000		402,877		—		402,877		—

December 31, 2021
Financial Instruments – Assets
Investment Securities Held-to-Maturity	$	4,694,780	$	4,646,619	$	131,139	$	4,515,480	$	—
Loans		11,921,869		12,094,631		—		—		12,094,631

Financial Instruments – Liabilities
Time Deposits		1,000,089		998,134		—		998,134		—
Securities Sold Under Agreements to Repurchase		450,490		469,293		—		469,293		—

¹	Excludes finance lease obligations.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Revenue Recognition

12 Months Ended

Dec. 31, 2022

Revenue From Contract With Customer [Abstract]

Revenue Recognition

Note 22. Revenue from Contracts with Customers

The following presents noninterest income, segregated by revenue streams in-scope and out-of-scope of Topic 606, for the years ended December 31, 2022, December 31, 2021, and December 31, 2020.

	Year Ended December 31,
(dollars in thousands)	2022		2021		2020
Noninterest Income
In-scope of Topic 606:
Trust and Asset Management	$	43,803	$	46,068	$	43,456
Service Charges on Deposit Accounts		12,975		12,181		11,715
Fees, Exchange, and Other Service Charges		43,139		41,962		36,005
Annuity and Insurance		3,710		3,130		3,249
Other		9,034		8,684		8,626
Noninterest Income (in-scope of Topic 606)		112,661		112,025		103,051
Noninterest Income (out-of-scope of Topic 606)		44,880		59,328		81,358
Total Noninterest Income	$	157,541	$	171,353	$	184,409

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI https://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130551-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130556-203045

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130554-203045

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 9
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130550-203045

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130554-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130554-203045

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130554-203045

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 15
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130558-203045

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130554-203045

+ Details

Leases

12 Months Ended

Dec. 31, 2022

Leases [Abstract]

Leases

Note 23. Leases

A lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration. On January 1, 2019, the Company adopted ASU No. 2016-02 “Leases” (Topic 842) and all subsequent ASUs that modified Topic 842. For the Company, Topic 842 primarily affected the accounting treatment for operating lease agreements in which the Company is the lessee.

Substantially all of the leases in which the Company is the lessee are comprised of real estate property for branches, ATM locations, and office space with terms extending through 2052. Portions of certain properties are subleased for terms extending through 2033. Substantially all of the Company’s leases are classified as operating leases, and therefore, were previously not recognized on the Company’s consolidated statements of condition. With the adoption of Topic 842, operating lease agreements are required to be recognized on the consolidated statements of condition as right-of-use (“ROU”) assets and corresponding lease liabilities. The Company has one existing finance lease (previously referred to as a capital lease) for a portion of the Company’s principal offices with a lease term through 2052. As this lease was previously required to be recorded on the Company’s consolidated statements of condition, Topic 842 did not materially impact the accounting for this lease.

The following table represents the consolidated statements of condition classification of the Company’s ROU assets and lease liabilities. The Company elected not to include short-term leases (i.e., leases with initial terms of twelve months or less), or equipment leases (deemed immaterial) on the consolidated statements of condition.

(dollars in thousands)		December 31, 2022		December 31, 2021
Lease Right-of-Use Assets	Classification
Operating lease right-of-use assets	Operating Lease Right-of-Use Assets	$	92,307	$	95,621
Finance lease right-of-use assets	Premises and Equipment, Net		2,160		2,232
Total Lease Right-of-Use Assets		$	94,467	$	97,853

Lease Liabilities
Operating lease liabilities	Operating Lease Liabilities	$	100,526	$	103,210
Finance lease liabilities	Other Debt		10,294		10,391
Total Lease Liabilities		$	110,820	$	113,601

The calculated amount of the ROU assets and lease liabilities in the table above are impacted by the length of the lease term and the discount rate used to present value the minimum lease payments. The Company’s lease agreements often include one or more options to renew at the Company’s discretion. If at lease inception, the Company considers the exercising of a renewal option to be reasonably certain, the Company will include the extended term in the calculation of the ROU asset and lease liability. Regarding the discount rate, Topic 842 requires the use of the rate implicit in the lease whenever this rate is readily determinable. As this rate is rarely determinable, the Company utilizes its incremental borrowing rate at lease inception, on a collateralized basis, over a similar term. For operating leases existing prior to January 1, 2019, the rate for the remaining lease term as of January 1, 2019, was used. For the Company’s only finance lease, the Company utilized its incremental borrowing rate at lease inception.

	December 31, 2022			December 31, 2021
Weighted-Average Remaining Lease Term
Operating leases		15.4		16.4 years
Finance leases		30.0		31.0 years
Weighted-Average Discount Rate
Operating leases		3.56	%		3.57	%
Finance leases		7.04	%		7.04	%

The following table represents lease costs and other lease information. As the Company elected, for all classes of underlying assets, not to separate lease and non-lease components and instead to account for them as a single lease component, the variable lease cost primarily represents variable payments such as common area maintenance and utilities. Variable lease cost also includes payments for ATM location leases in which payments are based on a percentage of ATM transactions (i.e., ATM surcharge fees), rather than a fixed amount.

(dollars in thousands)	2022			2021
Lease Costs
Operating lease cost	$	11,843		$	11,493
Variable lease cost		3,305			2,954
Short-term lease cost		328			407
Interest on lease liabilities ¹		728			735
Amortization of right-of-use assets		72			72
Sublease income		(7,147	)		(7,452	)
Net Lease Costs	$	9,129		$	8,209

Other Information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	11,502		$	13,741
Operating cash flows from finance leases		728			735
Financing cash flows from finance leases		97			90
Right-of-use assets obtained in exchange for new operating lease liabilities		10,804			12,207

¹	Included in other debt interest expense in the Company’s consolidated statements of income. All other lease costs in this table are included in net occupancy expense.

Future minimum payments for finance leases and operating leases with initial or remaining terms of one year or more as of December 31, 2022, were as follows:

(dollars in thousands)	Finance Leases			Operating Leases
2023	$	825		$	11,365
2024		825			10,538
2025		825			10,113
2026		825			8,816
2027		825			7,732
Thereafter		20,630			77,571
Total Future Minimum Lease Payments		24,755			126,135
Amounts Representing Interest		(14,461	)		(25,609	)
Present Value of Net Future Minimum Lease Payments	$	10,294		$	100,526

The Company, as lessor, leases and subleases certain properties to third party lessees. Rental income for these operating leases were $9.5 million, $9.8 million, and $10.3 million for the years ended December 31, 2022, December 31, 2021, and December 31, 2020, respectively.

Future minimum rental income under operating leases, including subleases, as of December 31, 2022, were as follows:

(dollars in thousands)	Minimum Rental Income
2023	$	4,924
2024		3,241
2025		2,342
2026		1,651
2027		837
Thereafter		3,047
Total	$	16,042

Bank of Hawai‘i Corporation Financial Statements

12 Months Ended

Dec. 31, 2022

Condensed Financial Information Of Parent Company Only Disclosure [Abstract]

Bank of Hawai‘i Corporation Financial Statements

Note 24. Bank of Hawai‘i Corporation Financial Statements

Condensed financial statements of the Parent were as follows:

Condensed Statements of Comprehensive Income (Loss)

	Year Ended December 31,
(dollars in thousands)	2022			2021			2020
Income
Dividends from Bank of Hawai‘i	$	182,000		$	62,000		$	134,000
Investment Securities Gains (Losses), Net		(1,195	)		(948	)		13,336
Other Income and Interest on Investment		6			6			154
Total Income		180,811			61,058			147,490
Noninterest Expense
Intercompany Salaries and Services		1,121			764			758
Other Expenses		2,240			1,787			1,864
Total Noninterest Expense		3,361			2,551			2,622
Income Before Income Tax Benefit and Equity in Undistributed Income of Subsidiaries		177,450			58,507			144,868
Income Tax Benefit (Expense)		2,036			2,131			(2,395	)
Equity in Undistributed Income of Subsidiaries		46,318			192,734			11,331
Net Income	$	225,804		$	253,372		$	153,804
Comprehensive Income (Loss)	$	(142,472	)	$	179,168		$	192,738

Condensed Statements of Condition

(dollars in thousands)	December 31, 2022		December 31, 2021
Assets
Cash with Bank of Hawai‘i	$	19,147	$	6,376
Investment Securities Held-to-Maturity		2,500		2,500
Goodwill		14,129		14,129
Other Assets		11,596		14,130
Equity in Net Assets of Subsidiaries		1,279,736		1,586,473
Total Assets	$	1,327,108	$	1,623,608

Liabilities
Income Taxes Payable	$	349	$	38
Other Liabilities		9,764		11,959
Total Liabilities		10,113		11,997
Shareholders' Equity		1,316,995		1,611,611
Total Liabilities and Shareholders' Equity	$	1,327,108	$	1,623,608

Condensed Statements of Cash Flows

	Year Ended December 31,
(dollars in thousands)	2022			2021			2020
Operating Activities
Net Income	$	225,804		$	253,372		$	153,804
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Share-Based Compensation		847			779			795
Net (Gains) Losses on Sales of Investment Securities		1,195			948			(13,336	)
Equity in Undistributed Income of Subsidiaries		(46,318	)		(192,734	)		(11,331	)
Net Change in Other Assets and Other Liabilities		1,138			(977	)		(68	)
Net Cash Provided by Operating Activities		182,666			61,388			129,864

Investing Activities
Capital Contributions to the Bank of Hawai‘i		—			(165,000	)		—
Proceeds from (Expenses related to) Sales of Investment Securities		(1,195	)		(948	)		18,336
Purchase of Investment Securities Held-to-Maturity		—			—			(2,501	)
Net Cash Provided by (Used in) Investing Activities		(1,195	)		(165,948	)		15,835

Financing Activities
Proceeds from Issuance of Common Stock		6,797			13,611			9,389
Proceeds from Issuance of Preferred Stock		—			175,487			—
Repurchase of Common Stock		(55,063	)		(31,258	)		(18,006	)
Cash Dividends Paid Common Stock		(112,557	)		(110,633	)		(107,434	)
Cash Dividends Paid Preferred Stock		(7,877	)		(2,975	)		—
Net Cash Provided by (Used in) Financing Activities		(168,700	)		44,232			(116,051	)

Net Change in Cash and Cash Equivalents		12,771			(60,328	)		29,648
Cash and Cash Equivalents at Beginning of Period		6,376			66,704			37,056
Cash and Cash Equivalents at End of Period	$	19,147		$	6,376		$	66,704

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Basis of Presentation

Certain prior period information has been reclassified to conform to the current year presentation.

Consolidation

Variable Interest Entities

Investment Securities

Loans Held for Sale

Loans and Leases

Non-Performing Loans and Leases

Loans Modified in a Troubled Debt Restructuring

Reserve for Credit Losses

The Company’s reserve for credit losses is comprised of the Allowance and the Unfunded Reserve.

Allowance for Credit Losses - Loans and Leases (the "Allowance")

Allowance for Credit Losses - Loans and Leases (the “Allowance”)

revolving credit, installment, and consumer lease financing arrangements). Each commercial and consumer portfolio class is also segmented based on risk characteristics.

Commercial Portfolio Segment

Consumer Portfolio Segment

The Company also considers qualitative adjustments to the quantitative baseline. For example, the Company considers the impact of current environmental factors at the reporting date that did not exist over the period from which historical experience was used. The environmental factors considered for the consumer portfolio are similar to the aforementioned factors considered for the commercial portfolio.

See Note 4 Loans and Leases and the Allowance for Credit Losses for more information.

Allowance for Credit Losses - Held-to-Maturity (“HTM”) Debt Securities

Allowance for Credit Losses - Available-for-Sale (“AFS”) Debt Securities

Collateral-Dependent Loans

Reserve for Unfunded Commitments

Cash and Cash Equivalents

Premises and Equipment

Foreclosed Real Estate

Mortgage Servicing Rights

Goodwill

Non-Marketable Equity Securities

Bank-Owned Life Insurance

Securities Sold Under Agreements to Repurchase

Pension and Postretirement Benefit Plans

Income Taxes

implementation of new business strategies, resolution of issues with taxing authorities, and newly enacted statutory, judicial, and regulatory guidance.

Treasury Stock

Earnings Per Common Share

Derivative Financial Instruments

Share-Based Compensation

Advertising Costs

International Operations

The Bank has operations that are conducted in certain Pacific Islands that are denominated in U.S. dollars. These operations are classified as domestic.

Fair Value Measurements

Level 1:	Inputs to the valuation methodology are quoted prices, unadjusted, for identical assets or liabilities in active markets. A quoted price in an active market provides the most reliable evidence of fair value and shall be used to measure fair value whenever available. A contractually binding sales price also provides reliable evidence of fair value.
Level 2:	Inputs to the valuation methodology include quoted prices for similar assets or liabilities in active markets; inputs to the valuation methodology include quoted prices for identical or similar assets or liabilities in markets that are not active; or inputs to the valuation methodology that utilize model-based techniques for which all significant assumptions are observable in the market.
Level 3:	Inputs to the valuation methodology are unobservable and significant to the fair value measurement; inputs to the valuation methodology that utilize model-based techniques for which significant assumptions are not observable in the market; or inputs to the valuation methodology that requires significant management judgment or estimation, some of which may be internally developed.

See Note 14 Employee Benefits and Note 21 Fair Value of Assets and Liabilities for the required fair value measurement disclosures.

Cash and Cash Equivalents and Restrictions on Cash (Tables)

12 Months Ended

Dec. 31, 2022

Cash And Cash Equivalents [Abstract]

Schedule of Reconciliation of Cash and Cash Equivalents

(dollars in thousands)	December 31, 2022		December 31, 2021
Interest-Bearing Deposits in Other Banks	$	3,724	$	2,571
Funds Sold		81,364		361,536
Cash and Due From Banks		316,679		196,327
Total Cash and Cash Equivalents	$	401,767	$	560,434

Investment Securities (Tables)

12 Months Ended

Dec. 31, 2022

Investments Debt And Equity Securities [Abstract]

Schedule of Amortized Cost, Gross Unrealized Gains and Losses, and Fair Value of Investment Securities

The amortized cost, gross unrealized gains and losses, and fair value of the Company’s investment securities as of December 31, 2022, and December 31, 2021, were as follows:

(dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
December 31, 2022
Available-for-Sale:
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	248,335	$	638	$	(15,067	)	$	233,906
Debt Securities Issued by States and Political Subdivisions		107,689		158		(12,582	)		95,265
Debt Securities Issued by U.S. Government-Sponsored Enterprises		48,807		—		(179	)		48,628
Debt Securities Issued by Corporations		850,585		809		(56,736	)		794,658
Mortgage-Backed Securities:
Residential - Government Agencies		828,798		245		(96,215	)		732,828
Residential - U.S. Government-Sponsored Enterprises		919,980		1		(126,110	)		793,871
Commercial - Government Agencies - Sponsored Agencies		168,242		—		(22,575	)		145,667
Total Mortgage-Backed Securities		1,917,020		246		(244,900	)		1,672,366
Total	$	3,172,436	$	1,851	$	(329,464	)	$	2,844,823
Held-to-Maturity:
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	131,619	$	—	$	(18,202	)	$	113,417
Debt Securities Issued by States and Political Subdivisions		—		—		—			—
Debt Securities Issued by Corporations		17,014		—		(2,534	)		14,480
Mortgage-Backed Securities:
Residential - Government Agencies		1,848,239		35		(294,047	)		1,554,227
Residential - U.S. Government-Sponsored Enterprises		2,968,322		8		(397,055	)		2,571,275
Commercial - Government Agencies - Sponsored Agencies		448,945		—		(86,951	)		361,994
Total Mortgage-Backed Securities		5,265,506		43		(778,053	)		4,487,496
Total	$	5,414,139	$	43	$	(798,789	)	$	4,615,393
December 31, 2021
Available-for-Sale:
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	248,858	$	1,513	$	(284	)	$	250,087
Debt Securities Issued by States and Political Subdivisions		74,743		1,080		(5	)		75,818
Debt Securities Issued by U.S. Government-Sponsored Enterprises		1,758		33		(11	)		1,780
Debt Securities Issued by Corporations		384,590		2,339		(3,816	)		383,113
Mortgage-Backed Securities:
Residential - Government Agencies		1,327,990		9,818		(18,766	)		1,319,042
Residential - U.S. Government-Sponsored Enterprises		2,127,781		4,792		(42,247	)		2,090,326
Commercial - Government Agencies - Sponsored Agencies		155,164		1,885		(1,159	)		155,890
Total Mortgage-Backed Securities		3,610,935		16,495		(62,172	)		3,565,258
Total	$	4,320,884	$	21,460	$	(66,288	)	$	4,276,056
Held-to-Maturity:
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	131,495	$	287	$	(643	)	$	131,139
Debt Securities Issued by States and Political Subdivisions		—		—		—			—
Debt Securities Issued by Corporations		20,316		76		(249	)		20,143
Mortgage-Backed Securities:
Residential - Government Agencies		1,774,394		12,139		(30,621	)		1,755,912
Residential - U.S. Government-Sponsored Enterprises		2,286,880		15,508		(32,627	)		2,269,761
Commercial - Government Agencies - Sponsored Agencies		481,695		324		(12,355	)		469,664
Total Mortgage-Backed Securities		4,542,969		27,971		(75,603	)		4,495,337
Total	$	4,694,780	$	28,334	$	(76,495	)	$	4,646,619

Analysis of the Contractual Maturities of Investment Securities

(dollars in thousands)	Amortized Cost		Fair Value
Available-for-Sale:
Due in One Year or Less	$	8,299	$	8,284
Due After One Year Through Five Years		420,864		400,125
Due After Five Years Through Ten Years		728,474		667,094
Due After Ten Years		6,380		4,989
		1,164,017		1,080,492
Debt Securities Issued by Government Agencies		91,399		91,965
Mortgage-Backed Securities:
Residential - Government Agencies		828,798		732,828
Residential - U.S. Government-Sponsored Enterprises		919,980		793,871
Commercial - Government Agencies or Sponsored Agencies		168,242		145,667
Total Mortgage-Backed Securities		1,917,020		1,672,366
Total	$	3,172,436	$	2,844,823
Held-to-Maturity:
Due After One Year Through Five Years	$	13,494	$	12,520
Due After Five Years Through Ten Years		124,119		106,682
Due After Ten Years		11,020		8,695
		148,633		127,897
Mortgage-Backed Securities:
Residential - Government Agencies		1,848,239		1,554,227
Residential - U.S. Government-Sponsored Enterprises		2,968,322		2,571,275
Commercial - Government Agencies or Sponsored Agencies		448,945		361,994
Total Mortgage-Backed Securities		5,265,506		4,487,496
Total	$	5,414,139	$	4,615,393

Schedule of Gains (Losses) on Sales of Investment Securities

The table below presents the gains and losses from the sales of investment securities for the years ended December 31, 2022, December 31, 2021, and December 31, 2020

(dollars in thousands)	2022			2021			2020
Gross Gains on Sales of Investment Securities	$	1		$	3,825		$	14,257
Gross Losses on Sales of Investment Securities		(6,112	)		(5,122	)		(4,325	)
Net Gains (Losses) on Sales of Investment Securities	$	(6,111	)	$	(1,297	)	$	9,932

Schedule of AFS Debt Securities in an Unrealized Loss Position

	Less Than 12 Months					12 Months or Longer					Total
(dollars in thousands)	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
December 31, 2022
Available-for-Sale:
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	28,574	$	(1,118	)	$	127,841	$	(13,949	)	$	156,415	$	(15,067	)
Debt Securities Issued by States and Political Subdivisions		11,341		(1,240	)		49,985		(11,342	)		61,326		(12,582	)
Debt Securities Issued by U.S. Government- Sponsored Enterprises		47,825		(108	)		803		(71	)		48,628		(179	)
Debt Securities Issued by Corporations		438,225		(7,995	)		284,350		(48,741	)		722,575		(56,736	)
Mortgage-Backed Securities:
Residential - Government Agencies		386,809		(30,492	)		340,824		(65,723	)		727,633		(96,215	)
Residential - U.S. Government-Sponsored Enterprises		194,684		(22,294	)		598,986		(103,816	)		793,670		(126,110	)
Commercial - Government Agencies or Sponsored Agencies		98,694		(13,247	)		46,973		(9,328	)		145,667		(22,575	)
Total Mortgage-Backed Securities		680,187		(66,033	)		986,783		(178,867	)		1,666,970		(244,900	)
Total	$	1,206,152	$	(76,494	)	$	1,449,762	$	(252,970	)	$	2,655,914	$	(329,464	)
December 31, 2021
Available-for-Sale:
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	51,455	$	(195	)	$	9,995	$	(89	)	$	61,450	$	(284	)
Debt Securities Issued by States and Political Subdivisions		643		(5	)		—		—			643		(5	)
Debt Securities Issued by U.S. Government- Sponsored Enterprises		814		(10	)		49		(1	)		863		(11	)
Debt Securities Issued by Corporations		249,629		(2,846	)		64,029		(970	)		313,658		(3,816	)
Mortgage-Backed Securities:
Residential - Government Agencies		810,157		(17,131	)		41,471		(1,635	)		851,628		(18,766	)
Residential - U.S. Government-Sponsored Enterprises		1,670,500		(35,711	)		180,205		(6,536	)		1,850,705		(42,247	)
Commercial - Government Agencies or Sponsored Agencies		25,664		(223	)		21,810		(936	)		47,474		(1,159	)
Total Mortgage-Backed Securities		2,506,321		(53,065	)		243,486		(9,107	)		2,749,807		(62,172	)
Total	$	2,808,862	$	(56,121	)	$	317,559	$	(10,167	)	$	3,126,421	$	(66,288	)

Schedule of Interest Income from Taxable and Non-taxable Investment Securities

Interest income from taxable and non-taxable investment securities for the years ended December 31, 2022, December 31, 2021, and December 31, 2020, were as follows:

	Year Ended December 31,
(dollars in thousands)	2022		2021		2020
Taxable	$	151,953	$	125,529	$	125,291
Non-Taxable		92		976		2,058
Total Interest Income from Investment Securities	$	152,045	$	126,505	$	127,349

Schedule of Carrying Values of Federal Home Loan Bank of Des Moines Stock and Federal Reserve Bank Stock

	December 31,
(dollars in thousands)	2022		2021
Federal Home Loan Bank of Des Moines Stock	$	26,000	$	10,000
Federal Reserve Bank Stock		27,065		26,624
Total	$	53,065	$	36,624

Loans and Leases and the Allowance for Credit Losses (Tables)

12 Months Ended

Dec. 31, 2022

Loans And Leases And Allowance For Loan And Lease Losses [Abstract]

Schedule of Loan and Lease Portfolio

The Company’s loan and lease portfolio was comprised of the following as of December 31, 2022 and December 31, 2021:

	December 31,
(dollars in thousands)	2022		2021
Commercial
Commercial and Industrial	$	1,389,066	$	1,361,921
Paycheck Protection Program		19,579		126,779
Commercial Mortgage		3,725,542		3,152,130
Construction		260,825		220,254
Lease Financing		69,491		105,108
Total Commercial		5,464,503		4,966,192
Consumer
Residential Mortgage		4,653,072		4,309,602
Home Equity		2,225,950		1,836,588
Automobile		870,396		736,565
Other ¹		432,499		410,129
Total Consumer		8,181,917		7,292,884
Total Loans and Leases	$	13,646,420	$	12,259,076

¹	Comprised of other revolving credit, installment, and lease financing.

Schedule of Activity in Allowance by Portfolio Segment

The following presents by portfolio segment, the activity in the Allowance for the years ended December 31, 2022, December 31, 2021, and December 31, 2020.

(dollars in thousands)	Commercial			Consumer			Total
For the Year Ended December 31, 2022
Allowance for Credit Losses:
Balance at Beginning of Period	$	64,950		$	92,871		$	157,821
Loans and Leases Charged-Off		(925	)		(12,417	)		(13,342	)
Recoveries on Loans and Leases Previously Charged-Off		552			7,671			8,223
Net Loans and Leases Recovered (Charged-Off)		(373	)		(4,746	)		(5,119	)
Provision for Credit Losses		(677	)		(7,586	)		(8,263	)
Balance at End of Period	$	63,900		$	80,539		$	144,439

For the Year Ended December 31, 2021
Allowance for Credit Losses:
Balance at Beginning of Period	$	84,847		$	131,405		$	216,252
Loans and Leases Charged-Off		(1,117	)		(16,202	)		(17,319	)
Recoveries on Loans and Leases Previously Charged-Off		506			10,848			11,354
Net Loans and Leases Recovered (Charged-Off)		(611	)		(5,354	)		(5,965	)
Provision for Credit Losses		(19,286	)		(33,180	)		(52,466	)
Balance at End of Period	$	64,950		$	92,871		$	157,821

For the Year Ended December 31, 2020
Allowance for Credit Losses:
Balance at Beginning of Period	$	55,012		$	53,278		$	108,290
Loans and Leases Charged-Off		(1,697	)		(19,341	)		(21,038	)
Recoveries on Loans and Leases Previously Charged-Off		2,328			11,572			13,900
Net Loans and Leases Recovered (Charged-Off)		631			(7,769	)		(7,138	)
Provision for Credit Losses		29,204			85,896			115,100
Balance at End of Period	$	84,847		$	131,405		$	216,252

Schedule of Recorded Investment in Loans and Leases by Class and Credit Quality Indicator

The following presents by credit quality indicator, loan class, and year of origination, the amortized cost basis of the Company’s loans and leases as of December 31, 2022.

		Term Loans by Origination Year
(dollars in thousands)	2022			2021		2020		2019		2018		Prior		Revolving Loans		Revolving Loans Converted to Term Loans		Total Loans and Leases
December 31, 2022
Commercial
Commercial and Industrial
Pass		$	360,748	$	348,300	$	224,264	$	59,127	$	46,799	$	71,906	$	257,349	$	155	$	1,368,648
Special Mention			273		-		-		-		96		92		1,357		-		1,818
Classified			7,295		91		1,030		-		1,644		6,267		2,252		21		18,600
Total Commercial and Industrial		$	368,316	$	348,391	$	225,294	$	59,127	$	48,539	$	78,265	$	260,958	$	176	$	1,389,066
Paycheck Protection Program
Pass		$	-	$	5,359	$	14,220	$	-	$	-	$	-	$	-	$	-	$	19,579
Total Paycheck Protection Program		$	-	$	5,359	$	14,220	$	-	$	-	$	-	$	-	$	-	$	19,579
Commercial Mortgage
Pass		$	1,182,831	$	771,375	$	691,054	$	283,553	$	131,055	$	494,924	$	48,771	$	-	$	3,603,563
Special Mention			29,707		37,657		28,105		-		1,482		5,014		-		-		101,965
Classified			182		1,964		8,545		624		-		8,699		-		-		20,014
Total Commercial Mortgage		$	1,212,720	$	810,996	$	727,704	$	284,177	$	132,537	$	508,637	$	48,771	$	-	$	3,725,542
Construction
Pass		$	124,507	$	69,992	$	37,133	$	16,838	$	-	$	297	$	12,058	$	-	$	260,825
Total Construction		$	124,507	$	69,992	$	37,133	$	16,838	$	-	$	297	$	12,058	$	-	$	260,825
Lease Financing
Pass		$	16,959	$	17,823	$	11,408	$	9,768	$	6,379	$	6,444	$	-	$	-	$	68,781
Classified			-		-		-		-		710		-		-		-		710
Total Lease Financing		$	16,959	$	17,823	$	11,408	$	9,768	$	7,089	$	6,444	$	-	$	-	$	69,491
Total Commercial		$	1,722,502	$	1,252,561	$	1,015,759	$	369,910	$	188,165	$	593,643	$	321,787	$	176	$	5,464,503
Consumer
Residential Mortgage
Pass		$	827,909	$	1,304,831	$	1,035,285	$	321,208	$	138,214	$	1,023,841	$	-	$	-	$	4,651,288
Classified			-		-		-		-		552		1,232		-		-		1,784
Total Residential Mortgage		$	827,909	$	1,304,831	$	1,035,285	$	321,208	$	138,766	$	1,025,073	$	-	$	-	$	4,653,072
Home Equity
Pass		$	-	$	-	$	-	$	-	$	-	$	890	$	2,186,598	$	36,114	$	2,223,602
Classified			-		-		-		-		-		25		1,105		1,218		2,348
Total Home Equity		$	-	$	-	$	-	$	-	$	-	$	915	$	2,187,703	$	37,332	$	2,225,950
Automobile
Pass		$	405,440	$	216,039	$	100,608	$	84,052	$	45,301	$	18,366	$	-	$	-	$	869,806
Classified			121		260		23		43		92		51		-		-		590
Total Automobile		$	405,561	$	216,299	$	100,631	$	84,095	$	45,393	$	18,417	$	-	$	-	$	870,396
Other¹
Pass		$	185,347	$	124,759	$	31,343	$	39,902	$	16,364	$	9,853	$	23,228	$	1,020	$	431,816
Classified			117		114		70		148		129		24		59		22		683
Total Other		$	185,464	$	124,873	$	31,413	$	40,050	$	16,493	$	9,877	$	23,287	$	1,042	$	432,499
Total Consumer		$	1,418,934	$	1,646,003	$	1,167,329	$	445,353	$	200,652	$	1,054,282	$	2,210,990	$	38,374	$	8,181,917
Total Loans and Leases		$	3,141,436	$	2,898,564	$	2,183,088	$	815,263	$	388,817	$	1,647,925	$	2,532,777	$	38,550	$	13,646,420

¹	Comprised of other revolving credit, installment, and lease financing.

The following presents by credit quality indicator, loan class, and year of origination, the amortized cost basis of the Company’s loans and leases as of December 31, 2021.

		Term Loans by Origination Year
(dollars in thousands)	2021			2020		2019		2018		2017		Prior		Revolving Loans		Revolving Loans Converted to Term Loans		Total Loans and Leases
December 31, 2021
Commercial
Commercial and Industrial
Pass		$	455,984	$	301,646	$	79,826	$	68,026	$	27,246	$	75,321	$	256,240	$	471	$	1,264,760
Special Mention			1,966		32,667		-		-		-		101		27,031		-		61,765
Classified			10,851		1,919		87		1,990		505		17,481		2,509		54		35,396
Total Commercial and Industrial		$	468,801	$	336,232	$	79,913	$	70,016	$	27,751	$	92,903	$	285,780	$	525	$	1,361,921
PPP
Pass		$	86,484	$	40,295	$	-	$	-	$	-	$	-	$	-	$	-	$	126,779
Total PPP		$	86,484	$	40,295	$	-	$	-	$	-	$	-	$	-	$	-	$	126,779
Commercial Mortgage
Pass		$	958,719	$	736,155	$	338,160	$	261,991	$	178,436	$	459,337	$	53,386	$	-	$	2,986,184
Special Mention			68,768		39,773		-		30,000		-		6,069		-		-		144,610
Classified			3,740		7,815		640		-		-		9,141		-		-		21,336
Total Commercial Mortgage		$	1,031,227	$	783,743	$	338,800	$	291,991	$	178,436	$	474,547	$	53,386	$	-	$	3,152,130
Construction
Pass		$	67,069	$	94,878	$	40,051	$	-	$	596	$	-	$	17,660	$	-	$	220,254
Total Construction		$	67,069	$	94,878	$	40,051	$	-	$	596	$	-	$	17,660	$	-	$	220,254
Lease Financing
Pass		$	21,637	$	15,075	$	15,697	$	9,902	$	2,004	$	39,937	$	-	$	-	$	104,252
Classified			-		-		-		856		-		-		-		-		856
Total Lease Financing		$	21,637	$	15,075	$	15,697	$	10,758	$	2,004	$	39,937	$	-	$	-	$	105,108
Total Commercial		$	1,675,218	$	1,270,223	$	474,461	$	372,765	$	208,787	$	607,387	$	356,826	$	525	$	4,966,192
Consumer
Residential Mortgage²
Pass		$	1,392,337	$	1,131,330	$	367,525	$	177,215	$	256,825	$	982,759	$	-	$	-	$	4,307,991
Classified			-		-		294		-		905		412		-		-		1,611
Total Residential Mortgage		$	1,392,337	$	1,131,330	$	367,819	$	177,215	$	257,730	$	983,171	$	-	$	-	$	4,309,602
Home Equity²
Pass		$	-	$	-	$	-	$	-	$	-	$	2,986	$	1,795,107	$	35,427	$	1,833,520
Classified			-		-		-		-		-		58		2,649		361		3,068
Total Home Equity		$	-	$	-	$	-	$	-	$	-	$	3,044	$	1,797,756	$	35,788	$	1,836,588
Automobile
Pass		$	301,285	$	152,022	$	138,887	$	91,411	$	33,268	$	18,963	$	-	$	-	$	735,836
Classified			165		85		134		137		120		88		-		-		729
Total Automobile		$	301,450	$	152,107	$	139,021	$	91,548	$	33,388	$	19,051	$	-	$	-	$	736,565
Other¹
Pass		$	172,735	$	49,769	$	92,983	$	44,489	$	16,218	$	6,444	$	25,622	$	1,444	$	409,704
Classified			39		90		183		47		27		17		22		-		425
Total Other		$	172,774	$	49,859	$	93,166	$	44,536	$	16,245	$	6,461	$	25,644	$	1,444	$	410,129
Total Consumer		$	1,866,561	$	1,333,296	$	600,006	$	313,299	$	307,363	$	1,011,727	$	1,823,400	$	37,232	$	7,292,884
Total Loans and Leases		$	3,541,779	$	2,603,519	$	1,074,467	$	686,064	$	516,150	$	1,619,114	$	2,180,226	$	37,757	$	12,259,076

¹	Comprised of other revolving credit, installment, and lease financing.

²	Certain prior period information has been reclassified to conform to current presentations.

Schedule of Aging Analysis by Class of Loan and Lease Portfolio

The following presents by class, an aging analysis of the Company’s loan and lease portfolio as of December 31, 2022, and December 31, 2021.

(dollars in thousands)	30 - 59 Days Past Due		60 - 89 Days Past Due		Past Due 90 Days or More		Non- Accrual		Total Past Due and Non- Accrual		Current		Total Loans and Leases		Non- Accrual Loans and Leases that are Current ²
As of December 31, 2022
Commercial
Commercial and Industrial	$	252	$	9	$	—	$	37	$	298	$	1,388,768	$	1,389,066	$	37
Paycheck Protection Program		—		—		—		—		—		19,579		19,579		—
Commercial Mortgage		—		—		—		3,309		3,309		3,722,233		3,725,542		3,309
Construction		—		—		—		—		—		260,825		260,825		—
Lease Financing		—		—		—		—		—		69,491		69,491		—
Total Commercial		252		9		—		3,346		3,607		5,460,896		5,464,503		3,346
Consumer
Residential Mortgage		3,016		721		2,429		4,239		10,405		4,642,667		4,653,072		1,729
Home Equity		1,639		960		1,673		4,022		8,294		2,217,656		2,225,950		664
Automobile		13,293		1,988		589		—		15,870		854,526		870,396		—
Other ¹		2,318		1,302		683		—		4,303		428,196		432,499		—
Total Consumer		20,266		4,971		5,374		8,261		38,872		8,143,045		8,181,917		2,393
Total	$	20,518	$	4,980	$	5,374	$	11,607	$	42,479	$	13,603,941	$	13,646,420	$	5,739

As of December 31, 2021
Commercial
Commercial and Industrial	$	2,006	$	14	$	—	$	243	$	2,263	$	1,359,658	$	1,361,921	$	151
PPP		—		—		—		—		—		126,779		126,779		—
Commercial Mortgage		—		—		—		8,205		8,205		3,143,925		3,152,130		8,205
Construction		—		—		—		—		—		220,254		220,254		—
Lease Financing		—		—		—		—		—		105,108		105,108		—
Total Commercial		2,006		14		—		8,448		10,468		4,955,724		4,966,192		8,356
Consumer
Residential Mortgage		2,046		1,263		3,159		3,305		9,773		4,299,829		4,309,602		—
Home Equity		1,791		748		3,456		4,881		10,876		1,825,712		1,836,588		1,544
Automobile		7,804		1,495		729		—		10,028		726,537		736,565		—
Other ¹		2,686		904		426		—		4,016		406,113		410,129		—
Total Consumer		14,327		4,410		7,770		8,186		34,693		7,258,191		7,292,884		1,544
Total	$	16,333	$	4,424	$	7,770	$	16,634	$	45,161	$	12,213,915	$	12,259,076	$	9,900

¹	Comprised of other revolving credit, installment, and lease financing.

²	Represents non-accrual loans that are not past due 30 days or more; however, full payment of principal and interest as originally structured is still not expected.

Schedule of Non-Accrual Loans and Leases

The following presents the non-accrual loans and leases as of December 31, 2022, and December 31, 2021.

	December 31, 2022						December 31, 2021
(dollars in thousands)	Non-accrual loans with a related ACL		Non-accrual loans without a related ACL		Total Non-accrual loans		Total Non-accrual loans
Commercial
Commercial and Industrial	$	37	$	—	$	37	$	243
Commercial Mortgage		—		3,309		3,309		8,205
Total Commercial		37		3,309		3,346		8,448
Consumer
Residential Mortgage		4,239		—		4,239		3,305
Home Equity		4,022		—		4,022		4,881
Total Consumer		8,261		—		8,261		8,186
Total	$	8,298	$	3,309	$	11,607	$	16,634

Schedule of Loans Modified in TDR and TDRs that Defaulted During the Period Within 12 months of Modification Date

The following presents by class, information related to loans modified in a TDR during the years ended December 31, 2022, and December 31, 2021.

	Loans Modified as a TDR for the Year Ended December 31, 2022						Loans Modified as a TDR for the Year Ended December 31, 2021
Troubled Debt Restructurings (dollars in thousands)	Number of Contracts		Recorded Investment (as of period end) ¹		Increase in Allowance (as of period end)		Number of Contracts		Recorded Investment (as of period end) ¹		Increase in Allowance (as of period end)
Commercial
Commercial and Industrial		2	$	210	$	15		7	$	251	$	4
Total Commercial		2		210		15		7		251		4
Consumer
Residential Mortgage		6		1,441		71		15		5,889		612
Home Equity		3		276		5		11		1,793		85
Automobile		152		2,860		39		341		7,130		95
Other ²		49		310		12		132		1,160		42
Total Consumer		210		4,887		127		499		15,972		834
Total		212	$	5,097	$	142		506	$	16,223	$	838

¹	The period end balances reflect all partial paydowns and charge-offs since the modification date. TDRs fully paid off, charged off, or foreclosed upon by period end are not included.

²	Comprised of other revolving credit and installment financing.

	Year Ended December 31, 2022				Year Ended December 31, 2021
TDRs that Defaulted During the Period, Within Twelve Months of their Modification Date (dollars in thousands)	Number of Contracts		Recorded Investment (as of period end)¹		Number of Contracts		Recorded Investment (as of period end) ¹
Consumer
Residential Mortgage		1		180		1		521
Home Equity		1		65		4		407
Automobile		12		191		38		644
Other ²		10		73		29		189
Total		24	$	509		72	$	1,761

¹	The period end balances reflect all paydowns and charge-offs since the modification date. TDRs fully paid off, charged off, or foreclosed upon by period end are not included.

²	Comprised of other revolving credit and installment financing.

Mortgage Servicing Rights (Tables)

12 Months Ended

Dec. 31, 2022

Transfers And Servicing Of Financial Assets [Abstract]

Summary of Carrying Value Under the Fair Value Measurement Method

(dollars in thousands)	2022			2021			2020
Balance at Beginning of Year	$	800		$	958		$	1,126
Changes in Fair Value Due to Payoffs		(83	)		(158	)		(168	)
Balance at End of Year	$	717		$	800		$	958

Summary of Carrying Value Under the Amortization Method

(dollars in thousands)	2022			2021			2020
Balance at Beginning of Year	$	21,451		$	18,694		$	23,896
Servicing Rights that Resulted From Asset Transfers		1,217			4,921			3,592
Amortization		(2,595	)		(4,227	)		(4,902	)
Valuation Allowance Recovery (Provision)		1,829			2,063			(3,892	)
Balance at End of Year	$	21,902		$	21,451		$	18,694
Valuation Allowance:
Balance at Beginning of Year	$	(1,829	)	$	(3,892	)	$	—
Valuation Allowance Recovery (Provision)		1,829			2,063			(3,892	)
Balance at End of Year	$	—		$	(1,829	)	$	(3,892	)
Fair Value:
Balance at Beginning of Year	$	21,451		$	18,694		$	25,714
Balance at End of Year	$	27,323		$	21,451		$	18,694

Schedule of Key Data and Assumptions Used in Estimating the Fair Value

The key data and assumptions used in estimating the fair value of the Company’s mortgage servicing rights as of December 31, 2022, and December 31, 2021 were as follows:

	December 31,
	2022			2021
Weighted-Average Constant Prepayment Rate ¹		4.02	%		10.70	%
Weighted-Average Life (in years)		9.64			6.18
Weighted-Average Note Rate		3.60	%	3.62		%
Weighted-Average Discount Rate ²	9.93		%	7.04		%

¹	Represents annualized loan prepayment rate assumption.

²	Derived from multiple interest rate scenarios that incorporate a spread to a market yield curve and market volatilities.

Schedule of Sensitivity Analysis of the Fair Value

	December 31,
(dollars in thousands)	2022			2021
Constant Prepayment Rate
Decrease in fair value from 25 basis points (“bps”) adverse change	$	(346	)	$	(252	)
Decrease in fair value from 50 bps adverse change		(686	)		(498	)
Discount Rate
Decrease in fair value from 25 bps adverse change		(316	)		(223	)
Decrease in fair value from 50 bps adverse change		(626	)		(441	)

Premises and Equipment (Tables)

12 Months Ended

Dec. 31, 2022

Property Plant And Equipment [Abstract]

Components of Premises and Equipment

The components of the Company’s premises and equipment as of December 31, 2022, and December 31, 2021, were as follows:

(dollars in thousands)	Cost		Accumulated Depreciation and Amortization			Net Book Value
December 31, 2022
Premises	$	380,978	$	(233,744	)	$	147,234
Equipment		141,923		(84,540	)		57,383
Finance Leases		6,593		(4,433	)		2,160
Total	$	529,494	$	(322,717	)	$	206,777

December 31, 2021
Premises	$	366,205	$	(226,515	)	$	139,690
Equipment		145,120		(87,649	)		57,471
Finance Leases		6,593		(4,361	)		2,232
Total	$	517,918	$	(318,525	)	$	199,393

Other Assets (Tables)

12 Months Ended

Dec. 31, 2022

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Schedule of Other Assets

The components of the Company’s other assets as of December 31, 2022, and December 31, 2021, were as follows:

	December 31,
(dollars in thousands)	2022		2021
Federal Home Loan Bank of Des Moines and Federal Reserve Bank Stock	$	53,065	$	36,624
Derivative Financial Instruments		47,717		42,011
Low-Income Housing and Other Equity Investments		175,283		136,647
Deferred Compensation Plan Assets		47,755		56,411
Prepaid Expenses		18,651		17,670
Accounts Receivable		12,168		13,323
Deferred Tax Assets		177,713		42,277
Other		41,636		39,764
Total Other Assets	$	573,988	$	384,727

Deposits (Tables)

12 Months Ended

Dec. 31, 2022

Deposits [Abstract]

Schedule of Time Deposits with Contractual Maturities

As of December 31, 2022, the contractual maturities of these time deposits were as follows:

(dollars in thousands)	Amount
2023	$	1,420,852
2024		128,304
2025		32,907
2026		102,929
2027		12,972
Thereafter		7,773
Total	$	1,705,737

As of December 31, 2022, the contractual maturities of these time deposits were as follows:

(dollars in thousands)	Amount
Three Months or Less	$	764,339
Over Three Months through Six Months		202,862
Over Six Months through Twelve Months		348,755
Over Twelve Months		209,003
Total	$	1,524,959

Securities Sold Under Agreements to Repurchase (Tables)

12 Months Ended

Dec. 31, 2022

Securities Sold Under Agreements To Repurchase [Abstract]

Details of Securities Sold Under Agreements to Repurchase

Details of the Company’s securities sold under agreements to repurchase as of December 31, 2022, and December 31, 2021 were as follows:

	December 31, 2022					December 31, 2021
(dollars in thousands)	Amounts Outstanding		Weighted-Average Interest Rate		Weighted-Avg Maturity (in years)	Amounts Outstanding		Weighted-Average Interest Rate		Weighted-Avg Maturity (in years)
Securities Sold Under Agreements to Repurchase
Private Institutions	$	725,000	2.97		3.7		450,000	2.46		3.0
Government Entities	$	490	1.55	%	1.9	$	490	1.55	%	2.9
Total	$	725,490	2.96	%	3.7	$	450,490	2.46	%	3.0

Remaining Contractual Maturities of Repurchase Agreements by Class of Collateral Pledged

	Remaining Contractual Maturity of Repurchase Agreements
(dollars in thousands)	Up to 90 days		91-365 days		1-3 Years		After 3 Years		Total
December 31, 2022
Class of Collateral Pledged:
Debt Securities Issued by States and Political Subdivisions	$	—	$	—	$	—	$	490	$	490
Mortgage-Backed Securities:
Residential - Government Agencies		—		—		28,673		—		28,673
Residential - U.S. Government-Sponsored Enterprises		—		—		396,327		300,000		696,327
Total	$	—	$	—	$	425,000	$	300,490	$	725,490

December 31, 2021
Class of Collateral Pledged:
Debt Securities Issued by States and Political Subdivisions	$	—	$	—	$	—	$	490	$	490
Mortgage-Backed Securities:
Residential - Government Agencies		—		—		38,685		13,407		52,092
Residential - U.S. Government-Sponsored Enterprises		—		—		236,315		161,593		397,908
Total	$	—	$	—	$	275,000	$	175,490	$	450,490

Other Debt (Tables)

12 Months Ended

Dec. 31, 2022

Debt Disclosure [Abstract]

Schedule of Other Debt

The Company’s other debt as of December 31, 2022, and December 31, 2021, were as follows:

	December 31,
(dollars in thousands)	2022		2021
Federal Home Loan Bank of Des Moines Advances	$	400,000	$	—
Finance Lease Obligations		10,294		10,391
Total	$	410,294	$	10,391

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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-Topic 235
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-Section S99
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-Subparagraph (SX 210.12-04(a))
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://www.xbrl.org/2003/role/exampleRef
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Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-URI https://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823

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+ Details

Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2022

Stockholders Equity Note [Abstract]

Schedule of Minimum Required Capital Amounts and Ratios for Well Capitalized Institutions and The Actual Capital Amounts and Ratios for The Company and The Bank

(dollars in thousands)	Well Capitalized Minimum Ratio			Company			Bank
As of December 31, 2022
Common Shareholders’ Equity				$	1,141,507		$	1,279,736
Common Equity Tier 1 Capital					1,554,741			1,704,570
Tier 1 Capital					1,730,228			1,704,570
Total Capital					1,875,430			1,849,772
Common Equity Tier 1 Capital Ratio		6.5	%		10.92	%		11.98	%
Tier 1 Capital Ratio		8.0	%		12.15	%		11.98	%
Total Capital Ratio		10.0	%		13.17	%		13.00	%
Tier 1 Leverage Ratio		5.0	%		7.37	%		7.27	%

As of December 31, 2021
Common Shareholders’ Equity				$	1,436,124		$	1,586,473
Common Equity Tier 1 Capital					1,483,455			1,645,405
Tier 1 Capital					1,658,942			1,645,405
Total Capital					1,811,943			1,798,190
Common Equity Tier 1 Capital Ratio		6.5	%		12.12	%		13.47	%
Tier 1 Capital Ratio		8.0	%		13.56	%		13.47	%
Total Capital Ratio		10.0	%		14.81	%		14.72	%
Tier 1 Leverage Ratio		5.0	%		7.32	%		7.26	%

Components of Other Comprehensive Income

The following table presents the components of other comprehensive income (loss), net of tax:

(dollars in thousands)	Before Tax			Tax Effect			Net of Tax
Year Ended December 31, 2022
Net Unrealized Gains (Losses) on Investment Securities:
Net Unrealized Gains (Losses) Arising During the Period	$	(523,221	)	$	(138,678	)	$	(384,543	)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income:
Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities ¹		10,680			2,831			7,849
Net Unrealized Gains (Losses) on Investment Securities		(512,541	)		(135,847	)		(376,694	)
Defined Benefit Plans:
Net Actuarial Gains (Losses) Arising During the Period		9,525			2,525			7,000
Amortization of Net Actuarial Losses (Gains)		2,175			576			1,599
Amortization of Prior Service Credit		(246	)		(65	)		(181	)
Defined Benefit Plans, Net		11,454			3,036			8,418
Other Comprehensive Income (Loss)	$	(501,087	)	$	(132,811	)	$	(368,276	)

Year Ended December 31, 2021
Net Unrealized Gains (Losses) on Investment Securities:
Net Unrealized Gains (Losses) Arising During the Period	$	(111,084	)	$	(29,440	)	$	(81,644	)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income:
(Gain) Loss on Sale		(3,798	)		(1,007	)		(2,791	)
Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities ¹		648			171			477
Net Unrealized Gains (Losses) on Investment Securities		(114,234	)		(30,276	)		(83,958	)
Defined Benefit Plans:
Net Actuarial Gains (Losses) Arising During the Period		10,842			2,874			7,968
Amortization of Net Actuarial Losses (Gains)		2,676			709			1,967
Amortization of Prior Service Credit		(246	)		(65	)		(181	)
Defined Benefit Plans, Net		13,272			3,518			9,754
Other Comprehensive Income (Loss)	$	(100,962	)	$	(26,758	)	$	(74,204	)

Year Ended December 31, 2020
Net Unrealized Gains (Losses) on Investment Securities:
Net Unrealized Gains (Losses) Arising During the Period	$	58,763		$	15,600		$	43,163
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income:
(Gain) Loss on Sale		(77	)		(50	)		(27	)
Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities ¹		397			105			292
Net Unrealized Gains (Losses) on Investment Securities		59,083			15,655			43,428
Defined Benefit Plans:
Net Actuarial Gains (Losses) Arising During the Period		(8,187	)		(2,170	)		(6,017	)
Amortization of Net Actuarial Losses (Gains)		2,318			614			1,704
Amortization of Prior Service Credit		(246	)		(65	)		(181	)
Defined Benefit Plans, Net		(6,115	)		(1,621	)		(4,494	)
Other Comprehensive Income (Loss)	$	52,968		$	14,034		$	38,934

Schedule of Accumulated Other Comprehensive Income (Loss)

The following table presents the changes in each component of accumulated other comprehensive income (loss), net of tax:

(dollars in thousands)	Investment Securities- Available- For-Sale			Investment Securities- Held-To- Maturities			Defined Benefit Plans			Accumulated Other Comprehensive Income (Loss)
Year Ended December 31, 2022
Balance at Beginning of Period	$	(32,940	)	$	54		$	(33,496	)	$	(66,382	)
Other Comprehensive Income (Loss) Before Reclassifications		(384,543	)		—			7,000			(377,543	)
Unrealized Net Losses Related to the Transfer of Securities from Available-for-Sale to Held-to-Maturity		176,700			(176,700	)		—			—
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)		—			7,849			1,418			9,267
Total Other Comprehensive Income (Loss)		(207,843	)		(168,851	)		8,418			(368,276	)
Balance at End of Period	$	(240,783	)	$	(168,797	)	$	(25,078	)	$	(434,658	)

Year Ended December 31, 2021
Balance at Beginning of Period	$	51,495		$	(423	)	$	(43,250	)	$	7,822
Other Comprehensive Income (Loss) Before Reclassifications		(81,644	)		—			7,968			(73,676	)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)		(2,791	)		477			1,786			(528	)
Total Other Comprehensive Income (Loss)		(84,435	)		477			9,754			(74,204	)
Balance at End of Period	$	(32,940	)	$	54		$	(33,496	)	$	(66,382	)

Year Ended December 31, 2020
Balance at Beginning of Period	$	8,359		$	(715	)	$	(38,756	)	$	(31,112	)
Other Comprehensive Income (Loss) Before Reclassifications		43,163			—			(6,017	)		37,146
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)		(27	)		292			1,523			1,788
Total Other Comprehensive Income (Loss)		43,136			292			(4,494	)		38,934
Balance at End of Period	$	51,495		$	(423	)	$	(43,250	)	$	7,822

Reclassification out of Accumulated Other Comprehensive Income

The following table presents the amounts reclassified out of each component of accumulated other comprehensive income (loss):

Details about Accumulated Other Comprehensive Income (Loss) Components	Amount Reclassified from Accumulated Other Comprehensive Income (Loss)¹									Affected Line Item in the Statement Where Net Income Is Presented
(dollars in thousands)	Year Ended December 31,
	2022			2021			2020
Amortization of Unrealized Holding Gains (Losses) on Investment Securities Held-to-Maturity	$	(10,680	)	$	(648	)	$	(397	)	Interest Income
		2,831			171			105		Provision for Income Tax
		(7,849	)		(477	)		(292	)	Net of Tax
Sales of Investment Securities Available-for-Sale		—			3,798			77		Investment Securities Gains (Losses), Net
		—			(1,007	)		(50	)	Provision for Income Tax
		—			2,791			27		Net of Tax

Amortization of Defined Benefit Plans Items
Prior Service Credit ²		246			246			246
Net Actuarial Losses ²		(2,175	)		(2,676	)		(2,318	)
		(1,929	)		(2,430	)		(2,072	)	Total Before Tax
		511			644			549		Provision for Income Tax
		(1,418	)		(1,786	)		(1,523	)	Net of Tax

Total Reclassifications for the Period	$	(9,267	)	$	528		$	(1,788	)	Net of Tax

¹	^{Amounts in parentheses indicate reductions to net income.}

²	^{These accumulated other comprehensive income (loss) components are included in the computation of net periodic benefit cost and are included in Other Noninterest Expense on the consolidated statements of income (see Note 14 Pension Plans and Postretirement Benefit Plan for additional details).}

Earnings Per Common Share (Tables)

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Schedule of Reconciliation of Weighted Average Number of Common Shares Used in the Calculation of Basic and Diluted Earnings Per Common Share and Antidilutive Stock Options and Restricted Stock Outstanding


(dollars in thousands, except shares and per share amounts)	2022		2021		2020
Numerator:
Net Income Available to Common Shareholders	$	217,927	$	250,397	$	153,804

Denominator:
Weighted Average Common Shares Outstanding - Basic		39,601,089		39,837,798		39,726,210
Dilutive Effect of Equity Based Awards		186,913		215,866		165,897
Weighted Average Common Shares Outstanding - Diluted		39,788,002		40,053,664		39,892,107

Earnings Per Common Share:
Basic	$	5.50	$	6.29	$	3.87
Diluted	$	5.48	$	6.25	$	3.86

Antidilutive Stock Options and Restricted Stock Outstanding		—		41,802		113,410

Business Segments (Tables)

12 Months Ended

Dec. 31, 2022

Segment Reporting [Abstract]

Selected Business Segment Financial Information

Selected business segment financial information as of and for the years ended December 31, 2022, December 31, 2021, and December 31, 2020 were as follows:

(dollars in thousands)	Consumer Banking			Commercial Banking			Treasury and Other			Consolidated Total
Year Ended December 31, 2022 ¹
Net Interest Income	$	327,940		$	209,272		$	3,346		$	540,558
Provision for Credit Losses		5,324			(205	)		(12,919	)		(7,800	)
Net Interest Income After Provision for Credit Losses		322,616			209,477			16,265			548,358
Noninterest Income		126,336			25,937			5,268			157,541
Noninterest Expense		(330,561	)		(70,601	)		(14,103	)		(415,265	)
Income Before Income Taxes		118,391			164,813			7,430			290,634
Provision for Income Taxes		(29,974	)		(40,659	)		5,803			(64,830	)
Net Income	$	88,417		$	124,154		$	13,233		$	225,804
Total Assets as of December 31, 2022 ¹	$	8,545,896		$	5,522,916		$	9,538,065		$	23,606,877

Year Ended December 31, 2021 ¹
Net Interest Income	$	284,597		$	194,409		$	18,284		$	497,290
Provision for Credit Losses		5,764			201			(56,465	)		(50,500	)
Net Interest Income After Provision for Credit Losses		278,833			194,208			74,749			547,790
Noninterest Income		131,292			30,637			9,424			171,353
Noninterest Expense		(304,177	)		(64,470	)		(24,942	)		(393,589	)
Income Before Income Taxes		105,948			160,375			59,231			325,554
Provision for Income Taxes		(26,474	)		(39,070	)		(6,638	)		(72,182	)
Net Income	$	79,474		$	121,305		$	52,593		$	253,372
Total Assets as of December 31, 2021 ¹	$	7,701,447		$	5,107,001		$	9,976,493		$	22,784,941

Year Ended December 31, 2020 ¹
Net Interest Income	$	293,451		$	188,626		$	14,245		$	496,322
Provision for Credit Losses		8,087			(948	)		110,661			117,800
Net Interest Income (Loss) After Provision for Credit Losses		285,364			189,574			(96,416	)		378,522
Noninterest Income		128,399			34,523			21,487			184,409
Noninterest Expense		(289,590	)		(63,294	)		(20,923	)		(373,807	)
Income (Loss) Before Income Taxes		124,173			160,803			(95,852	)		189,124
Provision for Income Taxes		(31,563	)		(40,081	)		36,324			(35,320	)
Net Income (Loss)	$	92,610		$	120,722		$	(59,528	)	$	153,804
Total Assets as of December 31, 2020 ¹	$	7,507,825		$	5,116,807		$	7,979,019		$	20,603,651

Employee Benefits (Tables)

12 Months Ended

Dec. 31, 2022

Compensation And Retirement Disclosure [Abstract]

Schedule of Reconciliation of Changes in Benefit Obligation and Fair value of Plan Assets As Well As the Funded Status Recognized in the Consolidated Statements

	Pension Benefits						Postretirement Benefits
(dollars in thousands)	2022			2021			2022			2021
Benefit Obligation at Beginning of Year	$	110,585		$	117,647		$	29,270		$	31,507
Service Cost		—			—			584			678
Interest Cost		3,097			2,924			861			816
Actuarial Losses (Gains)		(22,049	)		(2,817	)		(7,577	)		(2,514	)
Employer Benefits Paid ¹		(7,179	)		(7,169	)		(1,209	)		(1,217	)
Benefit Obligation at End of Year	$	84,454		$	110,585		$	21,929		$	29,270
Fair Value of Plan Assets at Beginning of Year	$	101,294		$	97,890		$	—		$	—
Actual Return on Plan Assets		(15,261	)		10,103			—			—
Employer Contributions		470			470			1,209			1,217
Employer Benefits Paid ¹		(7,179	)		(7,169	)		(1,209	)		(1,217	)
Fair Value of Plan Assets at End of Year	$	79,324		$	101,294		$	—		$	—
Funded Status at End of Year ²	$	(5,130	)	$	(9,291	)	$	(21,929	)	$	(29,270	)

¹	Participants' contributions relative to the postretirement benefit plan were offset against employer benefits paid in the table above. Participants' contributions for postretirement benefits were $0.8 million for the years ended December 31, 2022, and December 31, 2021.

²	^{Amounts are recognized in Retirement Benefits Payable in the consolidated statements of condition.}

Schedule of Amounts Recognized in Accumulated Other Comprehensive Income (Loss)

	Pension Benefits						Postretirement Benefits
(dollars in thousands)	2022			2021			2022		2021
Amounts Recognized in Accumulated Other Comprehensive Income (Loss), Net of Tax
Net Actuarial Gains (Losses)	$	(31,984	)	$	(35,014	)	$	5,803	$	235
Net Prior Service Credit		—			—			1,103		1,283
Total Amounts Recognized in Accumulated Other Comprehensive Income (Loss), Net of Tax	$	(31,984	)	$	(35,014	)	$	6,906	$	1,518

Schedule of Components of Net Periodic Benefit Cost

	Pension Benefits									Postretirement Benefits
(dollars in thousands)	2022			2021			2020			2022			2021			2020
Service Cost	$	—		$	—		$	—		$	584		$	678		$	578
Interest Cost		3,097			2,924			3,627			861			816			945
Expected Return on Plan Assets		(4,840	)		(4,592	)		(5,028	)		—			—			—
Amortization of:
Prior Service Credit ¹		—			—			—			(246	)		(246	)		(246	)
Net Actuarial Losses (Gains) ¹		2,175			2,676			2,318			—			—			—
Net Periodic Benefit Cost	$	432		$	1,008		$	917		$	1,199		$	1,248		$	1,277

¹	Represents reclassification adjustments from accumulated other comprehensive income during the period.

Schedule of Assumptions Used to Determine the Benefit Obligations/net Periodic Cost

Assumptions used to determine the benefit obligations as of December 31, 2022, and December 31, 2021, for the Company’s Pension Plans and postretirement benefit plan were as follows:

	Pension Benefits						Postretirement Benefits
	2022			2021			2022			2021
Weighted Average Assumptions as of December 31:
Discount Rate		5.51	%		2.89	%		5.58	%		3.00	%
Health Care Cost Trend Rate Assumed For Next Year		—			—			6.20	%		5.70	%

Schedule of Assumptions Used in Calculation Net Periodic Benefit Cost

	Pension Benefits									Postretirement Benefits
	2022			2021			2020			2022			2021			2020
Weighted Average Assumptions as of December 31:
Discount Rate		2.89	%		2.55	%		3.36	%		3.00	%		2.66	%		3.42	%
Expected Long-Term Rate of Return on Plan Assets		5.25	%		5.25	%		5.75	%		—			—			—
Health Care Cost Trend Rate		—			—			—			5.70	%		5.50	%		5.70	%

Schedule of Expected Benefits to be Paid in Each of the Next Five Years and in the Aggregate for the Five Years Thereafter

As of December 31, 2022, expected benefits to be paid in each of the next five years and in the aggregate for the five years thereafter were as follows:

(dollars in thousands)	Pension Benefits		Postretirement Benefits
2023	$	7,471	$	1,377
2024		7,426		1,402
2025		7,393		1,467
2026		7,316		1,521
2027		7,201		1,585
Years 2028-2032		33,630		8,573

Schedule of the Fair Values of the Retirement Plan Assets by Asset Category

The fair values of the Retirement Plan assets as of December 31, 2022, and December 31, 2021, by asset category were as follows:

	Fair Value Measurements
Asset Category (dollars in thousands)	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)		Total as of Dec. 31, 2022		Total as of Dec. 31, 2021
Cash	$	589	$	—	$	—	$	589	$	618
Equity Securities – Mutual Funds:
Large-Cap		4,979		—		—		4,979		511
Mixed-Cap		23,632		—		—		23,632		33,108
International		18,283		—		—		18,283		29,022
Emerging Market		757		—		—		757		1,786
Fixed Income Securities – Mutual Funds		31,084		—		—		31,084		36,249
Total	$	79,324	$	—	$	—	$	79,324	$	101,294

Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2022

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Compensation Expense and Related Income Tax Benefit Recognized for All Share-Based Awards

For the years ended December 31, 2022, December 31, 2021, and December 31, 2020, compensation expense and the related income tax benefit recognized for stock options and restricted stock were as follows:

(dollars in thousands)	2022		2021		2020
Compensation Expense	$	16,066	$	13,267	$	7,578
Income Tax Benefit		4,262		3,520		2,009

Schedule of Activity for Restricted Stock

The following table presents the activity for restricted stock:

	Number of Shares			Weighted Average Grant Date Fair Value		Grant Date Fair Value of Restricted Stock that Vested During the Year (in thousands)
Unvested as of December 31, 2019		309,949		$	83.75
Granted		161,168			80.97
Vested		(99,894	)		84.69	$	8,544
Forfeited		(42,454	)		84.36
Unvested as of December 31, 2020		328,769		$	82.02
Granted		292,007			90.23
Vested		(97,278	)		78.55	$	8,673
Forfeited		(22,962	)		86.48
Unvested as of December 31, 2021		500,536		$	87.28
Granted		192,030			85.80
Vested		(138,823	)		83.21	$	11,640
Forfeited		(13,074	)		86.96
Unvested as of December 31, 2022¹		540,669		$	87.81

¹ As of December 31, 2022, 107,975 shares were unvested from service-based grants.

Schedule of Activity Related to Stock Options

The following table presents the activity related to stock options under all plans for the year ended December 31, 2022:

	Stock Options				Weighted Average Exercise Price			Weighted Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (in thousands)
Stock Options Outstanding as of January 1, 2022		17,301			$	47.72
Exercised		(16,468	)			47.72
Expired		(833	)			47.72
Stock Options Outstanding as of December 31, 2022		—		—			—			$	—
Stock Options Vested and Exercisable as of December 31, 2022		—		—			—		—

Summary of Certain Stock Option Activity

The following summarizes certain stock option activity of the Company for the years ended December 31, 2022, December 31, 2021, and December 31, 2020:

(dollars in thousands)	2022		2021		2020
Intrinsic Value of Stock Options Exercised	$	679	$	6,755	$	2,261
Cash Received from Stock Options Exercised		786		7,473		2,438
Tax Benefits Realized from Stock Options Exercised		166		1,611		485

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Schedule of the Company's Provision for Income Taxes

The components of the Company’s provision for income taxes for the years ended December 31, 2022, December 31, 2021, and December 31, 2020, were as follows:

(dollars in thousands)	2022			2021		2020
Current:
Federal	$	59,855		$	58,652	$	65,840
State		7,688			10,510		12,066
Total Current		67,543			69,162		77,906
Deferred:
Federal		(3,247	)		2,254		(31,783	)
State		534			766		(10,803	)
Total Deferred		(2,713	)		3,020		(42,586	)
Provision for Income Taxes	$	64,830		$	72,182	$	35,320

Schedule of Significant Components of the Company's Deferred Tax Liabilities and Assets

As of December 31, 2022, and December 31, 2021, significant components of the Company’s deferred tax liabilities and assets were as follows:

	December 31,
(dollars in thousands)	2022			2021
Deferred Tax Liabilities:
Accelerated Depreciation	$	(7,958	)	$	(8,131	)
Accrued Pension Cost		(11,270	)		(11,270	)
Federal Home Loan Bank of Des Moines Stock		(6,597	)		(2,885	)
Lease Transactions		(25,741	)		(37,585	)
Operating Lease Liabilities		(24,469	)		(25,348	)
Investment in Variable Interest Entities		(700	)		(1,657	)
Deferred Loan Fees		(4,798	)		(3,845	)
Originated Mortgage Servicing Rights		(6,008	)		(6,068	)
Other		(909	)		(915	)
Gross Deferred Tax Liabilities		(88,450	)		(97,704	)
Deferred Tax Assets:
Allowance for Credit Losses		40,056			43,348
Minimum Pension Liability		9,046			12,082
Accrued Expenses		20,066			22,416
Postretirement Benefit Obligations		7,005			7,170
Capital Lease Expenses		2,156			2,163
Operating Lease Right-of-Use Assets		26,648			27,360
Restricted Stock		5,988			4,442
Net Unrealized Losses on Investments Securities		147,716			11,868
Deductible State and Local Taxes		2,360			3,239
Low Income Housing Investments		5,349			3,007
Other		5,995			6,089
Gross Deferred Tax Assets Before Valuation Allowance		272,385			143,184
Valuation Allowance		(6,222	)		(3,203	)
Gross Deferred Tax Assets After Valuation Allowance		266,163			139,981
Net Deferred Tax Assets	$	177,713		$	42,277

Schedule of Reconciliation of the Statutory Federal Income Tax Rate to the Company's Effective Tax Rate

The following is a reconciliation of the statutory federal income tax rate to the Company’s effective tax rate for the years ended December 31, 2022, December 31, 2021, and December 31, 2020:

	2022			2021			2020
Statutory Federal Income Tax Rate		21.00	%		21.00	%		21.00	%
Increase (Decrease) in Income Tax Rate Resulting From:
State Taxes, Net of Federal Income Tax		2.08			2.85			0.81
Low-Income Housing Investments		1.60			0.77			0.82
Investment Tax Credits		(0.28	)		(0.35	)		(1.24	)
Bank-Owned Life Insurance		(0.72	)		(0.48	)		(0.82	)
Tax-Exempt Income		(0.20	)		(0.24	)		(0.50	)
Leveraged Lease		(0.84	)		(0.10	)		(0.56	)
Other		(0.33	)		(1.28	)		(0.83	)
Effective Tax Rate		22.31	%		22.17	%		18.68	%

Schedule of Reconciliation of the Company's Liability for Unrecognized Tax Benefits

The following presents a reconciliation of the Company’s liability for UTBs for the years ended December 31, 2022, December 31, 2021, and December 31, 2020:

(dollars in thousands)	2022			2021			2020
Unrecognized Tax Benefits at Beginning of Year	$	4,015		$	5,403		$	6,120
Gross Increases, Related to Tax Positions Taken in a Prior Period		1			261			374
Gross Decreases, Related to Tax Positions Taken in a Prior Period		(26	)		(1,285	)		—
Gross Increases, Related to Current Period Tax Positions		226			234			222
Lapse of Statute of Limitations		(520	)		(598	)		(1,313	)
Unrecognized Tax Benefits at End of Year	$	3,696		$	4,015		$	5,403

Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2022

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Schedule of the Notional Amount and Fair Value of the Derivative Financial Instruments

The notional amount and fair value of the Company’s derivative financial instruments as of December 31, 2022, and December 31, 2021, were as follows:

	December 31, 2022					December 31, 2021
(dollars in thousands)	Notional Amount		Fair Value			Notional Amount		Fair Value
Interest Rate Lock Commitments	$	3,860	$	58		$	45,857	$	1,084
Forward Commitments		3,256		6			58,523		(35	)
Interest Rate Swap Agreements
Receive Fixed/Pay Variable Swaps		1,821,433		(160,914	)		1,400,322		28,742
Pay Fixed/Receive Variable Swaps		1,821,433		38,785			1,400,322		(5,922	)
Foreign Exchange Contracts		52,065		1,745			102,548		(674	)
Conversion Rate Swap Agreement		124,752	NA¹				131,672	NA¹

¹ The conversation rate swap agreements were valued at zero as further reductions to the conversion rate were deemed neither probable nor reasonably estimable.

Derivative Financial Instruments, their Fair Values, and Balance Sheet Location

	December 31, 2022				December 31, 2021
Derivative Financial Instruments Not Designated as Hedging Instruments ¹ (dollars in thousands)	Asset Derivatives		Liability Derivatives		Asset Derivatives		Liability Derivatives
Interest Rate Lock Commitments	$	64	$	6	$	1,084	$	—
Forward Commitments		10		4		17		52
Interest Rate Swap Agreements		45,831		167,960		40,733		17,913
Foreign Exchange Contracts		1,812		67		177		851
Total	$	47,717	$	168,037	$	42,011	$	18,816

¹	Asset derivatives are included in other assets and liability derivatives are included in other liabilities in the consolidated statements of condition.

Derivative Financial Instruments and the Amount and Location of the Net Gains or Losses Recognized in the Statements of Income

	Location of Net Gains	Year Ended December 31,
Derivative Financial Instruments Not Designated as Hedging Instruments (dollars in thousands)	(Losses) Recognized in the Statements of Income	2022			2021		2020
Interest Rate Lock Commitments	Mortgage Banking	$	(915	)	$	8,771	$	22,348
Forward Commitments	Mortgage Banking		2,348			1,580		(4,274	)
Interest Rate Swap Agreements ¹	Other Noninterest Income		44			77		(129	)
Foreign Exchange Contracts	Other Noninterest Income		1,792			1,462		1,940
Total		$	3,269		$	11,890	$	19,885

- Definition

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=125515794&loc=d3e41620-113959

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=125515794&loc=d3e41638-113959

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 8
-URI https://asc.fasb.org/extlink&oid=125515794&loc=d3e41678-113959

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 5
-URI https://asc.fasb.org/extlink&oid=125515794&loc=d3e41641-113959

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579240-113959

+ Details

Affordable Housing Projects Tax Credit Partnerships (Tables)

12 Months Ended

Dec. 31, 2022

Equity Method Investments And Joint Ventures [Abstract]

Expected Payments for Unfunded Affordable Housing Commitments

As of December 31, 2022, the expected payments for unfunded affordable housing commitments were as follows:

(dollars in thousands)	Amount
2023	$	41,142
2024		12,497
2025		24,115
2026		157
2027		58
Thereafter		10,790
Total Unfunded Commitments	$	88,759

Schedule of Tax Credits and Other Tax Benefits Recognized and Amortization Expense Related to Affordable Housing

(dollars in thousands)	2022		2021		2020
Effective Yield Method
Tax credits and other tax benefits recognized	$	6,116	$	8,604	$	11,752
Amortization Expense in Provision for Income Taxes		5,185		6,700		8,586

Proportional Amortization Method
Tax credits and other tax benefits recognized	$	15,174	$	10,831	$	6,633
Amortization Expense in Provision for Income Taxes		13,131		9,375		5,729

Balance Sheet Offsetting (Tables)

12 Months Ended

Dec. 31, 2022

Offsetting [Abstract]

Schedule of Assets and Liabilities Subject to an Enforceable Master Netting Arrangement or Repurchase Agreements

	(i)		(ii)		(iii) = (i)-(ii)		(iv)				(v) = (iii)- (iv)
							Gross Amounts Not Offset in the Statements of Condition
(dollars in thousands)	Gross Amounts Recognized in the Statements of Condition		Gross Amounts Offset in the Statements of Condition		Net Amounts Presented in the Statements of Condition		Netting Adjustments per Master Netting Arrangements		Fair Value of Collateral Pledged ¹		Net Amount
December 31, 2022
Assets:
Interest Rate Swap Agreements:
Institutional Counterparties	$	42,339	$	—	$	42,339	$	42,339	$	—	$	—

Liabilities:
Interest Rate Swap Agreements:
Institutional Counterparties		3,554		—		3,554		3,554		—		—

Repurchase Agreements:
Private Institutions		725,000		—		725,000		—		725,000		—
Government Entities		490		—		490		—		490		—
Total Repurchase Agreements	$	725,490	$	—	$	725,490	$	—	$	725,490	$	—

December 31, 2021
Assets:
Interest Rate Swap Agreements:
Institutional Counterparties	$	26	$	—	$	26	$	26	$	—	$	—

Liabilities:
Interest Rate Swap Agreements:
Institutional Counterparties		5,948		—		5,948		26		5,922		—

Repurchase Agreements:
Private Institutions		450,000		—		450,000		—		450,000		—
Government Entities		490		—		490		—		490		—
Total Repurchase Agreements	$	450,490	$	—	$	450,490	$	—	$	450,490	$	—

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2022

Commitments And Contingencies Disclosure [Abstract]

Credit Commitments

The Company’s credit commitments as of December 31, 2022, were as follows:

(dollars in thousands)	December 31, 2022
Unfunded Commitments to Extend Credit	$	3,592,872
Standby Letters of Credit		129,512
Commercial Letters of Credit		24,030
Total	$	3,746,414

Fair Value of Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2022

Fair Value Disclosures [Abstract]

Balances of Assets and Liabilities Measured at Fair Value on Recurring Basis

The table below presents the balances of assets and liabilities measured at fair value on a recurring basis as of December 31, 2022, and December 31, 2021:

(dollars in thousands)	Quoted Prices In Active Markets for Identical Assets or Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
December 31, 2022
Assets:
Investment Securities Available-for-Sale
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	141,944	$	91,962	$	—	$	233,906
Debt Securities Issued by States and Political Subdivisions		—		95,265		—		95,265
Debt Securities Issued by U.S. Government-Sponsored Enterprises		—		48,628		—		48,628
Debt Securities Issued by Corporations		—		794,658		—		794,658
Mortgage-Backed Securities:
Residential - Government Agencies		—		732,828		—		732,828
Residential - U.S. Government-Sponsored Enterprises		—		793,871		—		793,871
Commercial - Government Agencies or Sponsored Agencies		—		145,667		—		145,667
Total Mortgage-Backed Securities		—		1,672,366		—		1,672,366
Total Investment Securities Available-for-Sale		141,944		2,702,879		—		2,844,823
Loans Held for Sale		—		1,035		—		1,035
Mortgage Servicing Rights		—		—		717		717
Other Assets		47,755		—		—		47,755
Derivatives ¹		—		1,822		45,895		47,717
Total Assets Measured at Fair Value on a Recurring Basis as of December 31, 2022	$	189,699	$	2,705,736	$	46,612	$	2,942,047
Liabilities:
Derivatives¹	$	—	$	70	$	167,967	$	168,037
Total Liabilities Measured at Fair Value on a Recurring Basis as of December 31, 2022	$	—	$	70	$	167,967	$	168,037
December 31, 2021
Assets:
Investment Securities Available-for-Sale
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	114,845	$	135,242	$	—	$	250,087
Debt Securities Issued by States and Political Subdivisions		—		75,818		—		75,818
Debt Securities Issued by U.S. Government-Sponsored Enterprises		—		1,780		—		1,780
Debt Securities Issued by Corporations		—		383,113		—		383,113
Mortgage-Backed Securities:
Residential - Government Agencies		—		1,319,042		—		1,319,042
Residential - U.S. Government-Sponsored Enterprises		—		2,090,326		—		2,090,326
Commercial - Government Agencies or Sponsored Agencies		—		155,890		—		155,890
Total Mortgage-Backed Securities		—		3,565,258		—		3,565,258
Total Investment Securities Available-for-Sale		114,845		4,161,211		—		4,276,056
Loans Held for Sale		—		26,746		—		26,746
Mortgage Servicing Rights		—		—		800		800
Other Assets		56,411		—		—		56,411
Derivatives ¹		—		194		41,817		42,011
Total Assets Measured at Fair Value on a Recurring Basis as of December 31, 2021	$	171,256	$	4,188,151	$	42,617	$	4,402,024
Liabilities:
Derivatives ¹	$	—	$	903	$	17,913	$	18,816
Total Liabilities Measured at Fair Value on a Recurring Basis as of December 31, 2021	$	—	$	903	$	17,913	$	18,816

¹	The fair value of each class of derivatives is shown in Note 17 Derivative Financial Instruments.

Changes in Level 3 Assets and Liabilities Measured at Fair Value on Recurring Basis

For the years ended December 31, 2022, and December 31, 2021, the changes in Level 3 assets and liabilities measured at fair value on a recurring basis were as follows:

(dollars in thousands)	Mortgage Servicing Rights ¹			Net Derivative Assets and Liabilities ²
Year Ended December 31, 2022
Balance as of January 1, 2022	$	800		$	23,904
Realized and Unrealized Net Gains (Losses):
Included in Net Income		(83	)		(871	)
Transfers to Loans Held for Sale		—			(112	)
Variation Margin Payments		—			(144,993	)
Balance as of December 31, 2022	$	717		$	(122,072	)
Total Unrealized Net Gains (Losses) Included in Net Income Related to Assets Still Held as of December 31, 2022	$	—		$	(871	)

Year Ended December 31, 2021
Balance as of January 1, 2021	$	958		$	77,880
Realized and Unrealized Net Gains (Losses):
Included in Net Income ³		(158	)		8,848
Transfers to Loans Held for Sale		—			(12,634	)
Variation Margin Payments		—			(50,190	)
Balance as of December 31, 2021	$	800		$	23,904
Total Unrealized Net Gains (Losses) Included in Net Income Related to Assets Still Held as of December 31, 2021	$	—		$	8,848

¹	Realized and unrealized gains and losses related to mortgage servicing rights are reported as a component of mortgage banking income in the Company’s consolidated statements of income.

³	^{The unrealized net losses included in net income related to assets still held as of December 31, 2021, has been updated to exclude the impact of activities unrelated to the computation of unrealized net losses.}

Summary of the Significant Unobservable Inputs

			December 31, 2022												December 31, 2021
(dollars in thousands)	Valuation Technique	Description	Range						Weighted Average¹			Fair Value			Range						Weighted Average¹			Fair Value
Mortgage Servicing Rights	Discounted Cash Flow	Constant Prepayment Rate		2.81	%	-	10.63	%		4.02	%	$	28,040			6.51	%	-	11.48	%		10.70	%	$	22,251
		Discount Rate		8.70	%	-	10.40	%		9.93	%					6.49	%	-	7.08	%		7.04	%

Net Derivative Assets and Liabilities:
Interest Rate Lock Commitments	Pricing Model	Closing Ratio		84.10	%	-	99.00	%		92.86	%	$	58			75.40	%	-	100.00	%		90.47	%	$	1,084
Interest Rate Swap Agreements	Discounted Cash Flow	Credit Factor		0.00	%	-	0.49	%		0.01	%	$	(122,129	)		0.00	%	-	0.49	%		0.14	%	$	22,820

Schedule of Assets Measured at Fair Value on Nonrecurring Basis

(dollars in thousands)	Fair Value Hierarchy	Net Carrying Amount		Valuation Allowance
December 31, 2022
Mortgage Servicing Rights - amortization method	Level 3	$	21,902	$	—

December 31, 2021
Mortgage Servicing Rights - amortization method	Level 3	$	21,451	$	(1,829	)

Schedule of Difference between Aggregate Fair Value and Aggregate Unpaid Principal Balance

(dollars in thousands)	Aggregate Fair Value		Aggregate Unpaid Principal		Aggregate Fair Value Less Aggregate Unpaid Principal
December 31, 2022
Loans Held for Sale	$	1,035	$	1,016	$	19

December 31, 2021
Loans Held for Sale	$	26,746	$	26,309	$	437

Schedule of Carrying Amount, Fair Value, and Fair Value Hierarchy of Financial Instruments

					Fair Value Measurements
(dollars in thousands)	Carrying Amount		Fair Value		Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
December 31, 2022
Financial Instruments – Assets
Investment Securities Held-to-Maturity	$	5,414,139	$	4,615,393	$	113,417	$	4,501,976	$	—
Loans		13,371,226		12,386,615		—		—		12,386,615

Financial Instruments – Liabilities
Time Deposits		1,705,737		1,679,777		—		1,679,777		—
Securities Sold Under Agreements to Repurchase		725,490		718,614		—		718,614		—
Other Debt ¹		400,000		402,877		—		402,877		—

December 31, 2021
Financial Instruments – Assets
Investment Securities Held-to-Maturity	$	4,694,780	$	4,646,619	$	131,139	$	4,515,480	$	—
Loans		11,921,869		12,094,631		—		—		12,094,631

Financial Instruments – Liabilities
Time Deposits		1,000,089		998,134		—		998,134		—
Securities Sold Under Agreements to Repurchase		450,490		469,293		—		469,293		—

¹	Excludes finance lease obligations.

Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2022

Revenue From Contract With Customer [Abstract]

Summary of Noninterest Income Segregated by Revenue Streams In-Scope and Out-of-Scope of Topic 606

The following presents noninterest income, segregated by revenue streams in-scope and out-of-scope of Topic 606, for the years ended December 31, 2022, December 31, 2021, and December 31, 2020.

	Year Ended December 31,
(dollars in thousands)	2022		2021		2020
Noninterest Income
In-scope of Topic 606:
Trust and Asset Management	$	43,803	$	46,068	$	43,456
Service Charges on Deposit Accounts		12,975		12,181		11,715
Fees, Exchange, and Other Service Charges		43,139		41,962		36,005
Annuity and Insurance		3,710		3,130		3,249
Other		9,034		8,684		8,626
Noninterest Income (in-scope of Topic 606)		112,661		112,025		103,051
Noninterest Income (out-of-scope of Topic 606)		44,880		59,328		81,358
Total Noninterest Income	$	157,541	$	171,353	$	184,409

Leases (Tables)

12 Months Ended

Dec. 31, 2022

Leases [Abstract]

Schedule of Right-of-Use Assets and Lease Liabilities

(dollars in thousands)		December 31, 2022		December 31, 2021
Lease Right-of-Use Assets	Classification
Operating lease right-of-use assets	Operating Lease Right-of-Use Assets	$	92,307	$	95,621
Finance lease right-of-use assets	Premises and Equipment, Net		2,160		2,232
Total Lease Right-of-Use Assets		$	94,467	$	97,853

Lease Liabilities
Operating lease liabilities	Operating Lease Liabilities	$	100,526	$	103,210
Finance lease liabilities	Other Debt		10,294		10,391
Total Lease Liabilities		$	110,820	$	113,601

Schedule of Lease Cost and Other Information

For the Company’s only finance lease, the Company utilized its incremental borrowing rate at lease inception.

	December 31, 2022			December 31, 2021
Weighted-Average Remaining Lease Term
Operating leases		15.4		16.4 years
Finance leases		30.0		31.0 years
Weighted-Average Discount Rate
Operating leases		3.56	%		3.57	%
Finance leases		7.04	%		7.04	%

(dollars in thousands)	2022			2021
Lease Costs
Operating lease cost	$	11,843		$	11,493
Variable lease cost		3,305			2,954
Short-term lease cost		328			407
Interest on lease liabilities ¹		728			735
Amortization of right-of-use assets		72			72
Sublease income		(7,147	)		(7,452	)
Net Lease Costs	$	9,129		$	8,209

Other Information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	11,502		$	13,741
Operating cash flows from finance leases		728			735
Financing cash flows from finance leases		97			90
Right-of-use assets obtained in exchange for new operating lease liabilities		10,804			12,207

¹	Included in other debt interest expense in the Company’s consolidated statements of income. All other lease costs in this table are included in net occupancy expense.

Future Minimum Payments for Finance Leases and Operating Leases

Future minimum payments for finance leases and operating leases with initial or remaining terms of one year or more as of December 31, 2022, were as follows:

(dollars in thousands)	Finance Leases			Operating Leases
2023	$	825		$	11,365
2024		825			10,538
2025		825			10,113
2026		825			8,816
2027		825			7,732
Thereafter		20,630			77,571
Total Future Minimum Lease Payments		24,755			126,135
Amounts Representing Interest		(14,461	)		(25,609	)
Present Value of Net Future Minimum Lease Payments	$	10,294		$	100,526

Future Minimum Rental Income under Operating Leases Including Subleases

Future minimum rental income under operating leases, including subleases, as of December 31, 2022, were as follows:

(dollars in thousands)	Minimum Rental Income
2023	$	4,924
2024		3,241
2025		2,342
2026		1,651
2027		837
Thereafter		3,047
Total	$	16,042

Bank of Hawai‘i Corporation Financial Statements (Tables)

12 Months Ended

Dec. 31, 2022

Condensed Financial Information Of Parent Company Only Disclosure [Abstract]

Schedule of Condensed Statements of Income (Loss)

Condensed Statements of Comprehensive Income (Loss)

	Year Ended December 31,
(dollars in thousands)	2022			2021			2020
Income
Dividends from Bank of Hawai‘i	$	182,000		$	62,000		$	134,000
Investment Securities Gains (Losses), Net		(1,195	)		(948	)		13,336
Other Income and Interest on Investment		6			6			154
Total Income		180,811			61,058			147,490
Noninterest Expense
Intercompany Salaries and Services		1,121			764			758
Other Expenses		2,240			1,787			1,864
Total Noninterest Expense		3,361			2,551			2,622
Income Before Income Tax Benefit and Equity in Undistributed Income of Subsidiaries		177,450			58,507			144,868
Income Tax Benefit (Expense)		2,036			2,131			(2,395	)
Equity in Undistributed Income of Subsidiaries		46,318			192,734			11,331
Net Income	$	225,804		$	253,372		$	153,804
Comprehensive Income (Loss)	$	(142,472	)	$	179,168		$	192,738

Schedule of Condensed Statements of Condition

Condensed Statements of Condition

(dollars in thousands)	December 31, 2022		December 31, 2021
Assets
Cash with Bank of Hawai‘i	$	19,147	$	6,376
Investment Securities Held-to-Maturity		2,500		2,500
Goodwill		14,129		14,129
Other Assets		11,596		14,130
Equity in Net Assets of Subsidiaries		1,279,736		1,586,473
Total Assets	$	1,327,108	$	1,623,608

Liabilities
Income Taxes Payable	$	349	$	38
Other Liabilities		9,764		11,959
Total Liabilities		10,113		11,997
Shareholders' Equity		1,316,995		1,611,611
Total Liabilities and Shareholders' Equity	$	1,327,108	$	1,623,608

Schedule of Condensed Statements of Cash Flows

Condensed Statements of Cash Flows

	Year Ended December 31,
(dollars in thousands)	2022			2021			2020
Operating Activities
Net Income	$	225,804		$	253,372		$	153,804
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Share-Based Compensation		847			779			795
Net (Gains) Losses on Sales of Investment Securities		1,195			948			(13,336	)
Equity in Undistributed Income of Subsidiaries		(46,318	)		(192,734	)		(11,331	)
Net Change in Other Assets and Other Liabilities		1,138			(977	)		(68	)
Net Cash Provided by Operating Activities		182,666			61,388			129,864

Investing Activities
Capital Contributions to the Bank of Hawai‘i		—			(165,000	)		—
Proceeds from (Expenses related to) Sales of Investment Securities		(1,195	)		(948	)		18,336
Purchase of Investment Securities Held-to-Maturity		—			—			(2,501	)
Net Cash Provided by (Used in) Investing Activities		(1,195	)		(165,948	)		15,835

Financing Activities
Proceeds from Issuance of Common Stock		6,797			13,611			9,389
Proceeds from Issuance of Preferred Stock		—			175,487			—
Repurchase of Common Stock		(55,063	)		(31,258	)		(18,006	)
Cash Dividends Paid Common Stock		(112,557	)		(110,633	)		(107,434	)
Cash Dividends Paid Preferred Stock		(7,877	)		(2,975	)		—
Net Cash Provided by (Used in) Financing Activities		(168,700	)		44,232			(116,051	)

Net Change in Cash and Cash Equivalents		12,771			(60,328	)		29,648
Cash and Cash Equivalents at Beginning of Period		6,376			66,704			37,056
Cash and Cash Equivalents at End of Period	$	19,147		$	6,376		$	66,704

Summary of Significant Accounting Policies - Additional Information (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) plan	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Unfunded commitments to fund low-income housing partnerships	$ 88,759,000
Variable interest entity, nonconsolidated, carrying amount, assets	23,606,877,000	$ 22,784,941,000	$ 20,603,651,000
Trading securities	$ 0	0
Period during which non-accrual loan that has been modified in a troubled debt restructuring remains on non-accrual status (in months)	6 months
Maximum original maturity period of cash and cash equivalents (in days)	90 days
Goodwill impairment	$ 0
Number of company's pension plans \| plan	2
Minimum percentage of net actuarial gain (loss) will be amortized in net periodic benefit cost	10.00%
Minimum percentage of likelihood of tax position being realized upon ultimate settlement according to management's judgment	50.00%
Advertising costs	$ 10,000,000.0	9,600,000	$ 8,300,000
Maximum \| Building
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives (in years)	30 years
Maximum \| Equipment
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives (in years)	10 years
Home Equity
Summary Of Significant Accounting Policies [Line Items]
Minimum maturity period to be considered to place loans and leases on non-accrual status (in days)	120 days
Home Equity \| Maximum
Summary Of Significant Accounting Policies [Line Items]
Combined loan-to-value ratio, considered in determining whether the entire outstanding balance on the loan is to be charged-off or not (as a percent)	60.00%
Commercial
Summary Of Significant Accounting Policies [Line Items]
Minimum maturity period to be considered to place loans and leases on non-accrual status (in days)	90 days
Residential Mortgage and Home Equity Loan
Summary Of Significant Accounting Policies [Line Items]
Minimum maturity period to be considered to place loans and leases on non-accrual status (in days)	120 days
Automobile and Other consumer
Summary Of Significant Accounting Policies [Line Items]
Minimum maturity period to be considered for loans and leases to be charged off (in days)	120 days
Commercial and Industrial
Summary Of Significant Accounting Policies [Line Items]
Minimum maturity period to be considered for loans and leases to be charged off (in days)	120 days
Other Liabilities
Summary Of Significant Accounting Policies [Line Items]
Unfunded commitments to fund low-income housing partnerships	$ 88,800,000	44,000,000.0
Low-income Housing Partnerships
Summary Of Significant Accounting Policies [Line Items]
Period over which Federal tax credits or benefits are generally recognized (in years)	10 years
Period over which State tax credits or benefits are generally recognized (in years)	5 years
Solar Energy Partnerships
Summary Of Significant Accounting Policies [Line Items]
Period over which Federal tax credits or benefits are generally recognized (in years)	6 years
Variable Interest Entity Nonconsolidated \| Other Assets
Summary Of Significant Accounting Policies [Line Items]
Variable interest entity, nonconsolidated, carrying amount, assets	$ 175,300,000	$ 136,600,000

Cash and Cash Equivalents and Restrictions on Cash - Additional Information (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Cash And Cash Equivalents [Abstract]
Required Minimum Average Cash Reserve Maintained with Federal Reserve Bank	$ 0	$ 0

Cash and Cash Equivalents and Restrictions on Cash - Schedule of Reconciliation of Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Cash And Cash Equivalents [Abstract]
Interest-Bearing Deposits in Other Banks	$ 3,724	$ 2,571
Funds Sold	81,364	361,536
Cash and Due From Banks	316,679	196,327
Total Cash and Cash Equivalents	$ 401,767	$ 560,434

Investment Securities - Schedule of Amortized Cost, Gross Unrealized Gains and Losses, and Fair Value of Investment Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Available-for-Sale:
Available-for-Sale: Amortized Cost	$ 3,172,436	$ 4,320,884
Available-for-Sale: Gross Unrealized Gains	1,851	21,460
Available-for-Sale: Gross Unrealized Losses	(329,464)	(66,288)
Available-for-Sale: Fair Value	2,844,823	4,276,056
Held-to-Maturity:
Held-to-Maturity: Amortized Cost	5,414,139	4,694,780
Held-to-Maturity: Gross Unrealized Gains	43	28,334
Held-to-Maturity: Gross Unrealized Losses	(798,789)	(76,495)
Held-to-Maturity: Fair Value	4,615,393	4,646,619
Debt Securities Issued by the U.S. Treasury and Government Agencies
Available-for-Sale:
Available-for-Sale: Amortized Cost	248,335	248,858
Available-for-Sale: Gross Unrealized Gains	638	1,513
Available-for-Sale: Gross Unrealized Losses	(15,067)	(284)
Available-for-Sale: Fair Value	233,906	250,087
Held-to-Maturity:
Held-to-Maturity: Amortized Cost	131,619	131,495
Held-to-Maturity: Gross Unrealized Gains		287
Held-to-Maturity: Gross Unrealized Losses	(18,202)	(643)
Held-to-Maturity: Fair Value	113,417	131,139
Debt Securities Issued by States and Political Subdivisions
Available-for-Sale:
Available-for-Sale: Amortized Cost	107,689	74,743
Available-for-Sale: Gross Unrealized Gains	158	1,080
Available-for-Sale: Gross Unrealized Losses	(12,582)	(5)
Available-for-Sale: Fair Value	95,265	75,818
Debt Securities Issued by Government-Sponsored Enterprises
Available-for-Sale:
Available-for-Sale: Amortized Cost	48,807	1,758
Available-for-Sale: Gross Unrealized Gains		33
Available-for-Sale: Gross Unrealized Losses	(179)	(11)
Available-for-Sale: Fair Value	48,628	1,780
Debt Securities Issued by Corporations
Available-for-Sale:
Available-for-Sale: Amortized Cost	850,585	384,590
Available-for-Sale: Gross Unrealized Gains	809	2,339
Available-for-Sale: Gross Unrealized Losses	(56,736)	(3,816)
Available-for-Sale: Fair Value	794,658	383,113
Held-to-Maturity:
Held-to-Maturity: Amortized Cost	17,014	20,316
Held-to-Maturity: Gross Unrealized Gains		76
Held-to-Maturity: Gross Unrealized Losses	(2,534)	(249)
Held-to-Maturity: Fair Value	14,480	20,143
Residential - Government Agencies
Available-for-Sale:
Available-for-Sale: Amortized Cost	828,798	1,327,990
Available-for-Sale: Gross Unrealized Gains	245	9,818
Available-for-Sale: Gross Unrealized Losses	(96,215)	(18,766)
Available-for-Sale: Fair Value	732,828	1,319,042
Held-to-Maturity:
Held-to-Maturity: Amortized Cost	1,848,239	1,774,394
Held-to-Maturity: Gross Unrealized Gains	35	12,139
Held-to-Maturity: Gross Unrealized Losses	(294,047)	(30,621)
Held-to-Maturity: Fair Value	1,554,227	1,755,912
Residential - U.S. Government-Sponsored Enterprises
Available-for-Sale:
Available-for-Sale: Amortized Cost	919,980	2,127,781
Available-for-Sale: Gross Unrealized Gains	1	4,792
Available-for-Sale: Gross Unrealized Losses	(126,110)	(42,247)
Available-for-Sale: Fair Value	793,871	2,090,326
Held-to-Maturity:
Held-to-Maturity: Amortized Cost	2,968,322	2,286,880
Held-to-Maturity: Gross Unrealized Gains	8	15,508
Held-to-Maturity: Gross Unrealized Losses	(397,055)	(32,627)
Held-to-Maturity: Fair Value	2,571,275	2,269,761
Commercial - Government Agencies - Sponsored Agencies
Available-for-Sale:
Available-for-Sale: Amortized Cost	168,242	155,164
Available-for-Sale: Gross Unrealized Gains		1,885
Available-for-Sale: Gross Unrealized Losses	(22,575)	(1,159)
Available-for-Sale: Fair Value	145,667	155,890
Held-to-Maturity:
Held-to-Maturity: Amortized Cost	448,945	481,695
Held-to-Maturity: Gross Unrealized Gains		324
Held-to-Maturity: Gross Unrealized Losses	(86,951)	(12,355)
Held-to-Maturity: Fair Value	361,994	469,664
Mortgage-Backed Securities
Available-for-Sale:
Available-for-Sale: Amortized Cost	1,917,020	3,610,935
Available-for-Sale: Gross Unrealized Gains	246	16,495
Available-for-Sale: Gross Unrealized Losses	(244,900)	(62,172)
Available-for-Sale: Fair Value	1,672,366	3,565,258
Held-to-Maturity:
Held-to-Maturity: Amortized Cost	5,265,506	4,542,969
Held-to-Maturity: Gross Unrealized Gains	43	27,971
Held-to-Maturity: Gross Unrealized Losses	(778,053)	(75,603)
Held-to-Maturity: Fair Value	$ 4,487,496	$ 4,495,337

Investment Securities - Additional Information (Details)	3 Months Ended
	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) security	Dec. 31, 2021 USD ($)
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items]
Accrued interest receivable		$ 61,002,000	$ 45,242,000
Reclassification of fair value from available of sale investment securities to held to maturity investment securities	$ 1,300,000,000
Reclassified unrealized after-tax losses	176,700,000
Gains or Losses recognized at Reclassification	$ 0
Carrying Value Of Investment Securities Pledged		$ 4,100,000,000	2,900,000,000
Number of available for sale debt securities in unrealized loss positions \| security		402
Available-for-sale Securities
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items]
Accrued interest receivable		$ 11,700,000	8,400,000
Held-to-maturity Securities
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items]
Accrued interest receivable		$ 9,200,000	$ 8,200,000

Investment Securities - Analysis of the Contractual Maturities of Investment Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis Rolling Maturity[Abstract]
Due in One Year or Less	$ 8,299
Due After One Year Through Five Years	420,864
Due After Five Years Through Ten Years	728,474
Due After Ten Years	6,380
Amortized Cost, Total	1,164,017
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Rolling Maturities [Abstract]
Available-for-Sale: Amortized Cost	3,172,436	$ 4,320,884
Due in One Year or Less	8,284
Due After One Year Through Five Years	400,125
Due After Five Years Through Ten Years	667,094
Due After Ten Years	4,989
Fair Value, Total	1,080,492
Available-for-Sale: Fair Value	2,844,823	4,276,056
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis, Rolling Maturities (Abstract]
Due After One Year Through Five Years	13,494
Due After Five Years Through Ten Years	124,119
Due After Ten Years	11,020
Amortized Cost, Total	148,633
Held-to-Maturity Securities, Debt Maturities, Single Maturity Date, Fair Value, Rolling Maturities [Abstract]
Held-to-Maturity: Amortized Cost	5,414,139
Due After One Year Through Five Years	12,520
Due After Five Years Through Ten Years	106,682
Due After Ten Years	8,695
Fair Value, Total	127,897
Held-to-Maturity: Fair Value	4,615,393	4,646,619
Debt Securities Issued by Government Agencies
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Rolling Maturities [Abstract]
Available-for-sale Securities: Amortized Cost	91,399
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed Securities: Fair Value	91,965
Residential - Government Agencies
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Rolling Maturities [Abstract]
Available-for-sale Securities: Amortized Cost	828,798
Available-for-Sale: Amortized Cost	828,798	1,327,990
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed Securities: Fair Value	732,828
Available-for-Sale: Fair Value	732,828	1,319,042
Held-to-Maturity Securities, Debt Maturities, Single Maturity Date, Fair Value, Rolling Maturities [Abstract]
Held-to-Maturity: Mortgage-Backed Securities: Amortized Cost	1,848,239
Held-to-Maturity: Mortgage-Backed Securities: Fair Value	1,554,227
Held-to-Maturity: Fair Value	1,554,227	1,755,912
Residential - U.S. Government-Sponsored Enterprises
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Rolling Maturities [Abstract]
Available-for-sale Securities: Amortized Cost	919,980
Available-for-Sale: Amortized Cost	919,980	2,127,781
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed Securities: Fair Value	793,871
Available-for-Sale: Fair Value	793,871	2,090,326
Held-to-Maturity Securities, Debt Maturities, Single Maturity Date, Fair Value, Rolling Maturities [Abstract]
Held-to-Maturity: Mortgage-Backed Securities: Amortized Cost	2,968,322
Held-to-Maturity: Mortgage-Backed Securities: Fair Value	2,571,275
Held-to-Maturity: Fair Value	2,571,275	2,269,761
Commercial - Government Agencies - Sponsored Agencies
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Rolling Maturities [Abstract]
Available-for-sale Securities: Amortized Cost	168,242
Available-for-Sale: Amortized Cost	168,242	155,164
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed Securities: Fair Value	145,667
Available-for-Sale: Fair Value	145,667	155,890
Held-to-Maturity Securities, Debt Maturities, Single Maturity Date, Fair Value, Rolling Maturities [Abstract]
Held-to-Maturity: Mortgage-Backed Securities: Amortized Cost	448,945
Held-to-Maturity: Mortgage-Backed Securities: Fair Value	361,994
Held-to-Maturity: Fair Value	361,994	469,664
Mortgage-Backed Securities
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Rolling Maturities [Abstract]
Available-for-sale Securities: Amortized Cost	1,917,020
Available-for-Sale: Amortized Cost	1,917,020	3,610,935
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed Securities: Fair Value	1,672,366
Available-for-Sale: Fair Value	1,672,366	3,565,258
Held-to-Maturity Securities, Debt Maturities, Single Maturity Date, Fair Value, Rolling Maturities [Abstract]
Held-to-Maturity: Mortgage-Backed Securities: Amortized Cost	5,265,506
Held-to-Maturity: Mortgage-Backed Securities: Fair Value	4,487,496
Held-to-Maturity: Fair Value	$ 4,487,496	$ 4,495,337

Investment Securities - Schedule of Gains and Losses From Sales of Investment Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Investments Debt And Equity Securities [Abstract]
Gross Gains on Sales of Investment Securities	$ 1	$ 3,825	$ 14,257
Gross Losses on Sales of Investment Securities	(6,112)	(5,122)	(4,325)
Net Gains (Losses) on Sales of Investment Securities	$ (6,111)	$ (1,297)	$ 9,932

Investment Securities - Schedule of AFS Debt Securities in an Unrealized Loss Position (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months, Fair Value	$ 1,206,152	$ 2,808,862
Less Than 12 Months, Gross Unrealized Losses	(76,494)	(56,121)
12 Months or Longer, Fair Value	1,449,762	317,559
12 Months or Longer, Gross Unrealized Losses	(252,970)	(10,167)
Total Fair Value	2,655,914	3,126,421
Total Gross Unrealized Losses	(329,464)	(66,288)
Debt Securities Issued by the U.S. Treasury and Government Agencies
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months, Fair Value	28,574	51,455
Less Than 12 Months, Gross Unrealized Losses	(1,118)	(195)
12 Months or Longer, Fair Value	127,841	9,995
12 Months or Longer, Gross Unrealized Losses	(13,949)	(89)
Total Fair Value	156,415	61,450
Total Gross Unrealized Losses	(15,067)	(284)
Debt Securities Issued by States and Political Subdivisions
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months, Fair Value	11,341	643
Less Than 12 Months, Gross Unrealized Losses	(1,240)	(5)
12 Months or Longer, Fair Value	49,985
12 Months or Longer, Gross Unrealized Losses	(11,342)
Total Fair Value	61,326	643
Total Gross Unrealized Losses	(12,582)	(5)
Debt Securities Issued by Government-Sponsored Enterprises
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months, Fair Value	47,825	814
Less Than 12 Months, Gross Unrealized Losses	(108)	(10)
12 Months or Longer, Fair Value	803	49
12 Months or Longer, Gross Unrealized Losses	(71)	(1)
Total Fair Value	48,628	863
Total Gross Unrealized Losses	(179)	(11)
Debt Securities Issued by Corporations
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months, Fair Value	438,225	249,629
Less Than 12 Months, Gross Unrealized Losses	(7,995)	(2,846)
12 Months or Longer, Fair Value	284,350	64,029
12 Months or Longer, Gross Unrealized Losses	(48,741)	(970)
Total Fair Value	722,575	313,658
Total Gross Unrealized Losses	(56,736)	(3,816)
Residential - Government Agencies
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months, Fair Value	386,809	810,157
Less Than 12 Months, Gross Unrealized Losses	(30,492)	(17,131)
12 Months or Longer, Fair Value	340,824	41,471
12 Months or Longer, Gross Unrealized Losses	(65,723)	(1,635)
Total Fair Value	727,633	851,628
Total Gross Unrealized Losses	(96,215)	(18,766)
Residential - U.S. Government-Sponsored Enterprises
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months, Fair Value	194,684	1,670,500
Less Than 12 Months, Gross Unrealized Losses	(22,294)	(35,711)
12 Months or Longer, Fair Value	598,986	180,205
12 Months or Longer, Gross Unrealized Losses	(103,816)	(6,536)
Total Fair Value	793,670	1,850,705
Total Gross Unrealized Losses	(126,110)	(42,247)
Commercial - Government Agencies - Sponsored Agencies
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months, Fair Value	98,694	25,664
Less Than 12 Months, Gross Unrealized Losses	(13,247)	(223)
12 Months or Longer, Fair Value	46,973	21,810
12 Months or Longer, Gross Unrealized Losses	(9,328)	(936)
Total Fair Value	145,667	47,474
Total Gross Unrealized Losses	(22,575)	(1,159)
Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months, Fair Value	680,187	2,506,321
Less Than 12 Months, Gross Unrealized Losses	(66,033)	(53,065)
12 Months or Longer, Fair Value	986,783	243,486
12 Months or Longer, Gross Unrealized Losses	(178,867)	(9,107)
Total Fair Value	1,666,970	2,749,807
Total Gross Unrealized Losses	$ (244,900)	$ (62,172)

Investment Securities - Schedule of Interest Income From Taxable and Non-Taxable Investment Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Investments Debt And Equity Securities [Abstract]
Taxable	$ 151,953	$ 125,529	$ 125,291
Non-Taxable	92	976	2,058
Total Interest Income from Investment Securities	$ 152,045	$ 126,505	$ 127,349

Investment Securities - Schedule of Carrying Values of Federal Home Loan Bank of Des Moines Stock and Federal Reserve Bank Stock (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Investments Debt And Equity Securities [Abstract]
Federal Home Loan Bank of Des Moines Stock	$ 26,000	$ 10,000
Federal Reserve Bank Stock	27,065	26,624
Total	$ 53,065	$ 36,624

Loans and Leases and the Allowance for Credit Losses - Schedule of Loan and Lease Portfolio (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Loan and lease portfolio
Loans and Leases	$ 13,646,420	$ 12,259,076
Commercial
Loan and lease portfolio
Loans and Leases	5,464,503	4,966,192
Commercial \| Commercial and Industrial
Loan and lease portfolio
Loans and Leases	1,389,066	1,361,921
Commercial \| Paycheck Protection Program
Loan and lease portfolio
Loans and Leases	19,579	126,779
Commercial \| Commercial Mortgage
Loan and lease portfolio
Loans and Leases	3,725,542	3,152,130
Commercial \| Construction
Loan and lease portfolio
Loans and Leases	260,825	220,254
Commercial \| Lease Financing
Loan and lease portfolio
Loans and Leases	69,491	105,108
Consumer
Loan and lease portfolio
Loans and Leases	8,181,917	7,292,884
Consumer \| Other
Loan and lease portfolio
Loans and Leases	432,499	410,129
Consumer \| Residential Mortgage
Loan and lease portfolio
Loans and Leases	4,653,072	4,309,602
Consumer \| Home Equity
Loan and lease portfolio
Loans and Leases	2,225,950	1,836,588
Consumer \| Automobile
Loan and lease portfolio
Loans and Leases	$ 870,396	$ 736,565

Loans and Leases and the Allowance for Credit Losses - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Loan and lease portfolio
Net gains related to sales of residential mortgage loans	$ 200	$ 7,100	$ 15,400
Accrued interest receivable	61,002	45,242
Revolving loans, converted to term loan during the period	$ 6,200	4,100
Number of days non-accrual loans are not past due	30 days
Recorded Investment	$ 47,300	70,000
Available commitments to lend additional funds on loans modified as TDR	200	200
Consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure	$ 3,900
Minimum
Loan and lease portfolio
Default period past due following modification of loans in TDR (in days)	60 days
Classified
Loan and lease portfolio
Number of months up to which residential and home equity loans may be considered classified, even if they are current as to principal and interest	6 months
Classified \| Consumer
Loan and lease portfolio
Number of days past due for loans and leases in classified credit quality indicator	90 days
Pass \| Residential Mortgage
Loan and lease portfolio
Number of days past due for loans and leases in classified credit quality indicator	90 days
Maximum current loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent)	60.00%
Pass \| Home Equity
Loan and lease portfolio
Number of days past due for loans and leases in classified credit quality indicator	90 days
Pass \| Home Equity \| First Mortgage
Loan and lease portfolio
Maximum current loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent)	60.00%
Pass \| Home Equity \| First Lien
Loan and lease portfolio
Maximum current loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent)	60.00%
Accrued Interest Receivable
Loan and lease portfolio
Accrued interest receivable	$ 40,100	$ 28,700

Loans and Leases and the Allowance for Credit Losses - Schedule of Activity in Allowance by Portfolio Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Allowance for Credit Losses:
Balance at Beginning of Period	$ 157,821	$ 216,252	$ 108,290
Loans and Leases Charged-Off	(13,342)	(17,319)	(21,038)
Recoveries on Loans and Leases Previously Charged-Off	8,223	11,354	13,900
Net Loans and Leases Recovered (Charged-Off)	(5,119)	(5,965)	(7,138)
Provision for Credit Losses	(8,263)	(52,466)	115,100
Balance at End of Period	144,439	157,821	216,252
Commercial
Allowance for Credit Losses:
Balance at Beginning of Period	64,950	84,847	55,012
Loans and Leases Charged-Off	(925)	(1,117)	(1,697)
Recoveries on Loans and Leases Previously Charged-Off	552	506	2,328
Net Loans and Leases Recovered (Charged-Off)	(373)	(611)	631
Provision for Credit Losses	(677)	(19,286)	29,204
Balance at End of Period	63,900	64,950	84,847
Consumer
Allowance for Credit Losses:
Balance at Beginning of Period	92,871	131,405	53,278
Loans and Leases Charged-Off	(12,417)	(16,202)	(19,341)
Recoveries on Loans and Leases Previously Charged-Off	7,671	10,848	11,572
Net Loans and Leases Recovered (Charged-Off)	(4,746)	(5,354)	(7,769)
Provision for Credit Losses	(7,586)	(33,180)	85,896
Balance at End of Period	$ 80,539	$ 92,871	$ 131,405

- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

+ References + Details

Loans and Leases and the Allowance for Credit Losses - Schedule of Amortized Cost Basis of Loans and Leases by Credit Quality Indicator, Loan Class, and Year of Origination (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	$ 3,141,436	$ 3,541,779
Fiscal Year Before Latest Fiscal Year	2,898,564	2,603,519
Two Years Before Latest Fiscal Year	2,183,088	1,074,467
Three Years Before Latest Fiscal Year	815,263	686,064
Four Years Before Latest Fiscal Year	388,817	516,150
Prior	1,647,925	1,619,114
Revolving Loans	2,532,777	2,180,226
Revolving Loans Converted to Term Loans	38,550	37,757
Total Loans and Leases	13,646,420	12,259,076
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	1,722,502	1,675,218
Fiscal Year Before Latest Fiscal Year	1,252,561	1,270,223
Two Years Before Latest Fiscal Year	1,015,759	474,461
Three Years Before Latest Fiscal Year	369,910	372,765
Four Years Before Latest Fiscal Year	188,165	208,787
Prior	593,643	607,387
Revolving Loans	321,787	356,826
Revolving Loans Converted to Term Loans	176	525
Total Loans and Leases	5,464,503	4,966,192
Commercial \| Commercial and Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	368,316	468,801
Fiscal Year Before Latest Fiscal Year	348,391	336,232
Two Years Before Latest Fiscal Year	225,294	79,913
Three Years Before Latest Fiscal Year	59,127	70,016
Four Years Before Latest Fiscal Year	48,539	27,751
Prior	78,265	92,903
Revolving Loans	260,958	285,780
Revolving Loans Converted to Term Loans	176	525
Total Loans and Leases	1,389,066	1,361,921
Commercial \| Commercial and Industrial \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	360,748	455,984
Fiscal Year Before Latest Fiscal Year	348,300	301,646
Two Years Before Latest Fiscal Year	224,264	79,826
Three Years Before Latest Fiscal Year	59,127	68,026
Four Years Before Latest Fiscal Year	46,799	27,246
Prior	71,906	75,321
Revolving Loans	257,349	256,240
Revolving Loans Converted to Term Loans	155	471
Total Loans and Leases	1,368,648	1,264,760
Commercial \| Commercial and Industrial \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	273	1,966
Fiscal Year Before Latest Fiscal Year	0	32,667
Two Years Before Latest Fiscal Year	0	0
Three Years Before Latest Fiscal Year	0	0
Four Years Before Latest Fiscal Year	96	0
Prior	92	101
Revolving Loans	1,357	27,031
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	1,818	61,765
Commercial \| Commercial and Industrial \| Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	7,295	10,851
Fiscal Year Before Latest Fiscal Year	91	1,919
Two Years Before Latest Fiscal Year	1,030	87
Three Years Before Latest Fiscal Year	0	1,990
Four Years Before Latest Fiscal Year	1,644	505
Prior	6,267	17,481
Revolving Loans	2,252	2,509
Revolving Loans Converted to Term Loans	21	54
Total Loans and Leases	18,600	35,396
Commercial \| Paycheck Protection Program
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	86,484
Fiscal Year Before Latest Fiscal Year	5,359	40,295
Two Years Before Latest Fiscal Year	14,220	0
Three Years Before Latest Fiscal Year	0	0
Four Years Before Latest Fiscal Year	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	19,579	126,779
Commercial \| Paycheck Protection Program \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	86,484
Fiscal Year Before Latest Fiscal Year	5,359	40,295
Two Years Before Latest Fiscal Year	14,220	0
Three Years Before Latest Fiscal Year	0	0
Four Years Before Latest Fiscal Year	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	19,579	126,779
Commercial \| Commercial Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	1,212,720	1,031,227
Fiscal Year Before Latest Fiscal Year	810,996	783,743
Two Years Before Latest Fiscal Year	727,704	338,800
Three Years Before Latest Fiscal Year	284,177	291,991
Four Years Before Latest Fiscal Year	132,537	178,436
Prior	508,637	474,547
Revolving Loans	48,771	53,386
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	3,725,542	3,152,130
Commercial \| Commercial Mortgage \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	1,182,831	958,719
Fiscal Year Before Latest Fiscal Year	771,375	736,155
Two Years Before Latest Fiscal Year	691,054	338,160
Three Years Before Latest Fiscal Year	283,553	261,991
Four Years Before Latest Fiscal Year	131,055	178,436
Prior	494,924	459,337
Revolving Loans	48,771	53,386
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	3,603,563	2,986,184
Commercial \| Commercial Mortgage \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	29,707	68,768
Fiscal Year Before Latest Fiscal Year	37,657	39,773
Two Years Before Latest Fiscal Year	28,105	0
Three Years Before Latest Fiscal Year	0	30,000
Four Years Before Latest Fiscal Year	1,482	0
Prior	5,014	6,069
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	101,965	144,610
Commercial \| Commercial Mortgage \| Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	182	3,740
Fiscal Year Before Latest Fiscal Year	1,964	7,815
Two Years Before Latest Fiscal Year	8,545	640
Three Years Before Latest Fiscal Year	624	0
Four Years Before Latest Fiscal Year	0	0
Prior	8,699	9,141
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	20,014	21,336
Commercial \| Construction
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	124,507	67,069
Fiscal Year Before Latest Fiscal Year	69,992	94,878
Two Years Before Latest Fiscal Year	37,133	40,051
Three Years Before Latest Fiscal Year	16,838	0
Four Years Before Latest Fiscal Year	0	596
Prior	297	0
Revolving Loans	12,058	17,660
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	260,825	220,254
Commercial \| Construction \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	124,507	67,069
Fiscal Year Before Latest Fiscal Year	69,992	94,878
Two Years Before Latest Fiscal Year	37,133	40,051
Three Years Before Latest Fiscal Year	16,838	0
Four Years Before Latest Fiscal Year	0	596
Prior	297	0
Revolving Loans	12,058	17,660
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	260,825	220,254
Commercial \| Lease Financing
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	16,959	21,637
Fiscal Year Before Latest Fiscal Year	17,823	15,075
Two Years Before Latest Fiscal Year	11,408	15,697
Three Years Before Latest Fiscal Year	9,768	10,758
Four Years Before Latest Fiscal Year	7,089	2,004
Prior	6,444	39,937
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	69,491	105,108
Commercial \| Lease Financing \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	16,959	21,637
Fiscal Year Before Latest Fiscal Year	17,823	15,075
Two Years Before Latest Fiscal Year	11,408	15,697
Three Years Before Latest Fiscal Year	9,768	9,902
Four Years Before Latest Fiscal Year	6,379	2,004
Prior	6,444	39,937
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	68,781	104,252
Commercial \| Lease Financing \| Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
Fiscal Year Before Latest Fiscal Year	0	0
Two Years Before Latest Fiscal Year	0	0
Three Years Before Latest Fiscal Year	0	856
Four Years Before Latest Fiscal Year	710	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	710	856
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	1,418,934	1,866,561
Fiscal Year Before Latest Fiscal Year	1,646,003	1,333,296
Two Years Before Latest Fiscal Year	1,167,329	600,006
Three Years Before Latest Fiscal Year	445,353	313,299
Four Years Before Latest Fiscal Year	200,652	307,363
Prior	1,054,282	1,011,727
Revolving Loans	2,210,990	1,823,400
Revolving Loans Converted to Term Loans	38,374	37,232
Total Loans and Leases	8,181,917	7,292,884
Consumer \| Residential Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	827,909	1,392,337
Fiscal Year Before Latest Fiscal Year	1,304,831	1,131,330
Two Years Before Latest Fiscal Year	1,035,285	367,819
Three Years Before Latest Fiscal Year	321,208	177,215
Four Years Before Latest Fiscal Year	138,766	257,730
Prior	1,025,073	983,171
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	4,653,072	4,309,602
Consumer \| Residential Mortgage \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	827,909	1,392,337
Fiscal Year Before Latest Fiscal Year	1,304,831	1,131,330
Two Years Before Latest Fiscal Year	1,035,285	367,525
Three Years Before Latest Fiscal Year	321,208	177,215
Four Years Before Latest Fiscal Year	138,214	256,825
Prior	1,023,841	982,759
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	4,651,288	4,307,991
Consumer \| Residential Mortgage \| Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
Fiscal Year Before Latest Fiscal Year	0	0
Two Years Before Latest Fiscal Year	0	294
Three Years Before Latest Fiscal Year	0	0
Four Years Before Latest Fiscal Year	552	905
Prior	1,232	412
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	1,784	1,611
Consumer \| Home Equity Loan
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
Fiscal Year Before Latest Fiscal Year	0	0
Two Years Before Latest Fiscal Year	0	0
Three Years Before Latest Fiscal Year	0	0
Four Years Before Latest Fiscal Year	0	0
Prior	915	3,044
Revolving Loans	2,187,703	1,797,756
Revolving Loans Converted to Term Loans	37,332	35,788
Total Loans and Leases	2,225,950	1,836,588
Consumer \| Home Equity Loan \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
Fiscal Year Before Latest Fiscal Year	0	0
Two Years Before Latest Fiscal Year	0	0
Three Years Before Latest Fiscal Year	0	0
Four Years Before Latest Fiscal Year	0	0
Prior	890	2,986
Revolving Loans	2,186,598	1,795,107
Revolving Loans Converted to Term Loans	36,114	35,427
Total Loans and Leases	2,223,602	1,833,520
Consumer \| Home Equity Loan \| Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
Fiscal Year Before Latest Fiscal Year	0	0
Two Years Before Latest Fiscal Year	0	0
Three Years Before Latest Fiscal Year	0	0
Four Years Before Latest Fiscal Year	0	0
Prior	25	58
Revolving Loans	1,105	2,649
Revolving Loans Converted to Term Loans	1,218	361
Total Loans and Leases	2,348	3,068
Consumer \| Automobile
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	405,561	301,450
Fiscal Year Before Latest Fiscal Year	216,299	152,107
Two Years Before Latest Fiscal Year	100,631	139,021
Three Years Before Latest Fiscal Year	84,095	91,548
Four Years Before Latest Fiscal Year	45,393	33,388
Prior	18,417	19,051
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	870,396	736,565
Consumer \| Automobile \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	405,440	301,285
Fiscal Year Before Latest Fiscal Year	216,039	152,022
Two Years Before Latest Fiscal Year	100,608	138,887
Three Years Before Latest Fiscal Year	84,052	91,411
Four Years Before Latest Fiscal Year	45,301	33,268
Prior	18,366	18,963
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	869,806	735,836
Consumer \| Automobile \| Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	121	165
Fiscal Year Before Latest Fiscal Year	260	85
Two Years Before Latest Fiscal Year	23	134
Three Years Before Latest Fiscal Year	43	137
Four Years Before Latest Fiscal Year	92	120
Prior	51	88
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	590	729
Consumer \| Other Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	185,464	172,774
Fiscal Year Before Latest Fiscal Year	124,873	49,859
Two Years Before Latest Fiscal Year	31,413	93,166
Three Years Before Latest Fiscal Year	40,050	44,536
Four Years Before Latest Fiscal Year	16,493	16,245
Prior	9,877	6,461
Revolving Loans	23,287	25,644
Revolving Loans Converted to Term Loans	1,042	1,444
Total Loans and Leases	432,499	410,129
Consumer \| Other Loans \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	185,347	172,735
Fiscal Year Before Latest Fiscal Year	124,759	49,769
Two Years Before Latest Fiscal Year	31,343	92,983
Three Years Before Latest Fiscal Year	39,902	44,489
Four Years Before Latest Fiscal Year	16,364	16,218
Prior	9,853	6,444
Revolving Loans	23,228	25,622
Revolving Loans Converted to Term Loans	1,020	1,444
Total Loans and Leases	431,816	409,704
Consumer \| Other Loans \| Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	117	39
Fiscal Year Before Latest Fiscal Year	114	90
Two Years Before Latest Fiscal Year	70	183
Three Years Before Latest Fiscal Year	148	47
Four Years Before Latest Fiscal Year	129	27
Prior	24	17
Revolving Loans	59	22
Revolving Loans Converted to Term Loans	22	0
Total Loans and Leases	$ 683	$ 425

Loans and Leases and the Allowance for Credit Losses - Schedule of Aging Analysis by Class of Loan and Lease Portfolio (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	$ 13,646,420	$ 12,259,076
Non- Accrual	11,607	16,634
Total Past Due and Non- Accrual	42,479	45,161
Total Loans and Leases	13,646,420	12,259,076
Non- Accrual Loans and Leases that are Current	5,739	9,900
Commercial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	5,464,503	4,966,192
Non- Accrual	3,346	8,448
Total Past Due and Non- Accrual	3,607	10,468
Total Loans and Leases	5,464,503	4,966,192
Non- Accrual Loans and Leases that are Current	3,346	8,356
Commercial \| Commercial and Industrial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	1,389,066	1,361,921
Non- Accrual	37	243
Total Past Due and Non- Accrual	298	2,263
Total Loans and Leases	1,389,066	1,361,921
Non- Accrual Loans and Leases that are Current	37	151
Commercial \| Commercial Mortgage
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	3,725,542	3,152,130
Non- Accrual	3,309	8,205
Total Past Due and Non- Accrual	3,309	8,205
Total Loans and Leases	3,725,542	3,152,130
Non- Accrual Loans and Leases that are Current	3,309	8,205
Commercial \| Construction
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	260,825	220,254
Non- Accrual	0	0
Total Past Due and Non- Accrual	0	0
Total Loans and Leases	260,825	220,254
Non- Accrual Loans and Leases that are Current	0	0
Commercial \| Lease Financing
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	69,491	105,108
Non- Accrual	0	0
Total Past Due and Non- Accrual	0	0
Total Loans and Leases	69,491	105,108
Non- Accrual Loans and Leases that are Current	0	0
Commercial \| PPP
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	19,579	126,779
Non- Accrual	0	0
Total Past Due and Non- Accrual	0	0
Total Loans and Leases	19,579	126,779
Non- Accrual Loans and Leases that are Current	0	0
Consumer
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	8,181,917	7,292,884
Non- Accrual	8,261	8,186
Total Past Due and Non- Accrual	38,872	34,693
Total Loans and Leases	8,181,917	7,292,884
Non- Accrual Loans and Leases that are Current	2,393	1,544
Consumer \| Other
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non- Accrual	0	0
Total Past Due and Non- Accrual	4,303	4,016
Total Loans and Leases	432,499	410,129
Non- Accrual Loans and Leases that are Current	0	0
Consumer \| Residential Mortgage
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	4,653,072	4,309,602
Non- Accrual	4,239	3,305
Total Past Due and Non- Accrual	10,405	9,773
Total Loans and Leases	4,653,072	4,309,602
Non- Accrual Loans and Leases that are Current	1,729	0
Consumer \| Home Equity
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non- Accrual	4,022	4,881
Total Past Due and Non- Accrual	8,294	10,876
Total Loans and Leases	2,225,950	1,836,588
Non- Accrual Loans and Leases that are Current	664	1,544
Consumer \| Automobile
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	870,396	736,565
Non- Accrual	0	0
Total Past Due and Non- Accrual	15,870	10,028
Total Loans and Leases	870,396	736,565
Non- Accrual Loans and Leases that are Current	0	0
30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	20,518	16,333
30 - 59 Days Past Due \| Commercial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	252	2,006
30 - 59 Days Past Due \| Commercial \| Commercial and Industrial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	252	2,006
30 - 59 Days Past Due \| Commercial \| Commercial Mortgage
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
30 - 59 Days Past Due \| Commercial \| Construction
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
30 - 59 Days Past Due \| Commercial \| Lease Financing
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
30 - 59 Days Past Due \| Commercial \| PPP
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
30 - 59 Days Past Due \| Consumer
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	20,266	14,327
30 - 59 Days Past Due \| Consumer \| Other
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	2,318	2,686
30 - 59 Days Past Due \| Consumer \| Residential Mortgage
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	3,016	2,046
30 - 59 Days Past Due \| Consumer \| Home Equity
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	1,639	1,791
30 - 59 Days Past Due \| Consumer \| Automobile
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	13,293	7,804
60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	4,980	4,424
60 - 89 Days Past Due \| Commercial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	9	14
60 - 89 Days Past Due \| Commercial \| Commercial and Industrial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	9	14
60 - 89 Days Past Due \| Commercial \| Commercial Mortgage
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
60 - 89 Days Past Due \| Commercial \| Construction
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
60 - 89 Days Past Due \| Commercial \| Lease Financing
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
60 - 89 Days Past Due \| Commercial \| PPP
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
60 - 89 Days Past Due \| Consumer
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	4,971	4,410
60 - 89 Days Past Due \| Consumer \| Other
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	1,302	904
60 - 89 Days Past Due \| Consumer \| Residential Mortgage
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	721	1,263
60 - 89 Days Past Due \| Consumer \| Home Equity
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	960	748
60 - 89 Days Past Due \| Consumer \| Automobile
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	1,988	1,495
Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	5,374	7,770
Past Due 90 Days or More \| Commercial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Past Due 90 Days or More \| Commercial \| Commercial and Industrial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Past Due 90 Days or More \| Commercial \| Commercial Mortgage
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Past Due 90 Days or More \| Commercial \| Construction
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Past Due 90 Days or More \| Commercial \| Lease Financing
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Past Due 90 Days or More \| Commercial \| PPP
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Past Due 90 Days or More \| Consumer
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	5,374	7,770
Past Due 90 Days or More \| Consumer \| Other
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	683	426
Past Due 90 Days or More \| Consumer \| Residential Mortgage
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	2,429	3,159
Past Due 90 Days or More \| Consumer \| Home Equity
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	1,673	3,456
Past Due 90 Days or More \| Consumer \| Automobile
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	589	729
Current
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	13,603,941	12,213,915
Current \| Commercial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	5,460,896	4,955,724
Current \| Commercial \| Commercial and Industrial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	1,388,768	1,359,658
Current \| Commercial \| Commercial Mortgage
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	3,722,233	3,143,925
Current \| Commercial \| Construction
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	260,825	220,254
Current \| Commercial \| Lease Financing
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	69,491	105,108
Current \| Commercial \| PPP
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	19,579	126,779
Current \| Consumer
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	8,143,045	7,258,191
Current \| Consumer \| Other
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	428,196	406,113
Current \| Consumer \| Residential Mortgage
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	4,642,667	4,299,829
Current \| Consumer \| Home Equity
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	2,217,656	1,825,712
Current \| Consumer \| Automobile
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	$ 854,526	$ 726,537

Loans and Leases and the Allowance for Credit Losses - Schedule of Aging Analysis by Class of Loan and Lease Portfolio (Parenthetical) (Details)	12 Months Ended
	Dec. 31, 2022
Loans And Leases And Allowance For Loan And Lease Losses [Abstract]
Number of days non-accrual loans and leases are not past due	30 days

Loans and Leases and the Allowance for Credit Losses - Schedule of Non-Accrual Loans and Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable Nonaccrual Status [Line Items]
Non-accrual loans with a related ACL	$ 8,298
Non-accrual loans without a related ACL	3,309
Total Non-accrual loans	11,607	$ 16,634
Commercial
Financing Receivable Nonaccrual Status [Line Items]
Non-accrual loans with a related ACL	37
Non-accrual loans without a related ACL	3,309
Total Non-accrual loans	3,346	8,448
Commercial \| Commercial and Industrial
Financing Receivable Nonaccrual Status [Line Items]
Non-accrual loans with a related ACL	37
Non-accrual loans without a related ACL	0
Total Non-accrual loans	37	243
Commercial \| Commercial Mortgage
Financing Receivable Nonaccrual Status [Line Items]
Non-accrual loans with a related ACL	0
Non-accrual loans without a related ACL	3,309
Total Non-accrual loans	3,309	8,205
Consumer
Financing Receivable Nonaccrual Status [Line Items]
Non-accrual loans with a related ACL	8,261
Non-accrual loans without a related ACL	0
Total Non-accrual loans	8,261	8,186
Consumer \| Residential Mortgage
Financing Receivable Nonaccrual Status [Line Items]
Non-accrual loans with a related ACL	4,239
Non-accrual loans without a related ACL	0
Total Non-accrual loans	4,239	3,305
Consumer \| Home Equity
Financing Receivable Nonaccrual Status [Line Items]
Non-accrual loans with a related ACL	4,022
Non-accrual loans without a related ACL	0
Total Non-accrual loans	$ 4,022	$ 4,881

Loans and Leases and the Allowance for Credit Losses - Schedule of Loans Modified in TDR (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) contract	Dec. 31, 2021 USD ($) contract
Financing Receivable Modifications [Line Items]
Number of Contracts \| contract	212	506
Recorded Investment (as of period end)	$ 5,097	$ 16,223
Increase in Allowance (as of period end)	$ 142	$ 838
Commercial
Financing Receivable Modifications [Line Items]
Number of Contracts \| contract	2	7
Recorded Investment (as of period end)	$ 210	$ 251
Increase in Allowance (as of period end)	$ 15	$ 4
Commercial \| Commercial and Industrial
Financing Receivable Modifications [Line Items]
Number of Contracts \| contract	2	7
Recorded Investment (as of period end)	$ 210	$ 251
Increase in Allowance (as of period end)	$ 15	$ 4
Consumer
Financing Receivable Modifications [Line Items]
Number of Contracts \| contract	210	499
Recorded Investment (as of period end)	$ 4,887	$ 15,972
Increase in Allowance (as of period end)	$ 127	$ 834
Consumer \| Other
Financing Receivable Modifications [Line Items]
Number of Contracts \| contract	49	132
Recorded Investment (as of period end)	$ 310	$ 1,160
Increase in Allowance (as of period end)	$ 12	$ 42
Consumer \| Residential Mortgage
Financing Receivable Modifications [Line Items]
Number of Contracts \| contract	6	15
Recorded Investment (as of period end)	$ 1,441	$ 5,889
Increase in Allowance (as of period end)	$ 71	$ 612
Consumer \| Home Equity
Financing Receivable Modifications [Line Items]
Number of Contracts \| contract	3	11
Recorded Investment (as of period end)	$ 276	$ 1,793
Increase in Allowance (as of period end)	$ 5	$ 85
Consumer \| Automobile
Financing Receivable Modifications [Line Items]
Number of Contracts \| contract	152	341
Recorded Investment (as of period end)	$ 2,860	$ 7,130
Increase in Allowance (as of period end)	$ 39	$ 95

Loans and Leases and the Allowance for Credit Losses - Schedule of TDRs that Defaulted during Period, within Twelve Months of Modification Date (Details) - Consumer $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) contract	Dec. 31, 2021 USD ($) contract
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted \| contract	24	72
Recorded Investment (as of period ended), TDRs that Defaulted \| $	$ 509	$ 1,761
Other
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted \| contract	10	29
Recorded Investment (as of period ended), TDRs that Defaulted \| $	$ 73	$ 189
Residential Mortgage
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted \| contract	1	1
Recorded Investment (as of period ended), TDRs that Defaulted \| $	$ 180	$ 521
Home Equity
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted \| contract	1	4
Recorded Investment (as of period ended), TDRs that Defaulted \| $	$ 65	$ 407
Automobile
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted \| contract	12	38
Recorded Investment (as of period ended), TDRs that Defaulted \| $	$ 191	$ 644

Mortgage Servicing Rights - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Transfers And Servicing Of Financial Assets [Abstract]
Residential mortgage loans serviced for third parties	$ 2,600.0	$ 2,700.0
Servicing income, including late and ancillary fees	$ 6.0	$ 6.4	$ 7.2

Mortgage Servicing Rights - Summary of Carrying Value Under the Fair Value Measurement Method (Details) - Mortgage Servicing Rights - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Servicing Assets At Fair Value [Line Items]
Balance at Beginning of Year	$ 800	$ 958	$ 1,126
Changes in Fair Value Due to Payoffs	(83)	(158)	(168)
Balance at End of Year	$ 717	$ 800	$ 958

Mortgage Servicing Rights - Summary of Carrying Value Under the Amortization Method (Details) - Mortgage Servicing Rights - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Mortgage Servicing Rights Accounted for Under the Amortization Method (Rollforward)
Balance at Beginning of Year	$ 21,451	$ 18,694	$ 23,896
Servicing Rights that Resulted From Asset Transfers	1,217	4,921	3,592
Amortization	(2,595)	(4,227)	(4,902)
Valuation Allowance Recovery (Provision)	1,829	2,063	(3,892)
Balance at End of Year	21,902	21,451	18,694
Valuation Allowance:
Balance at Beginning of Year	(1,829)	(3,892)
Valuation Allowance Recovery (Provision)	1,829	2,063	(3,892)
Balance at End of Year		(1,829)	(3,892)
Fair Value:
Balance at Beginning of Year	21,451	18,694	25,714
Balance at End of Year	$ 27,323	$ 21,451	$ 18,694

Mortgage Servicing Rights - Schedule of Key Data and Assumptions Used in Estimating the Fair Value (Details) - Mortgage Servicing Rights	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Assumption For Fair Value As Of Balance Sheet Date Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities [Line Items]
Weighted-Average Constant Prepayment Rate (as a percent)	4.02%	10.70%
Weighted-Average Life (in years)	9 years 7 months 20 days	6 years 2 months 4 days
Weighted-Average Note Rate (as a percent)	3.60%	3.62%
Weighted-Average Discount Rate (as a percent)	9.93%	7.04%

Mortgage Servicing Rights - Schedule of Sensitivity Analysis of the Fair Value (Details) - Mortgage Servicing Rights - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Constant Prepayment Rate
Decrease in fair value from 25 basis points (“bps”) adverse change	$ (346)	$ (252)
Decrease in fair value from 50 bps adverse change	(686)	(498)
Discount Rate
Decrease in fair value from 25 bps adverse change	(316)	(223)
Decrease in fair value from 50 bps adverse change	$ (626)	$ (441)

Premises and Equipment - Components of Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Cost	$ 529,494	$ 517,918
Accumulated Depreciation and Amortization	(322,717)	(318,525)
Net Book Value	206,777	199,393
Premises
Property Plant And Equipment [Line Items]
Cost	380,978	366,205
Accumulated Depreciation and Amortization	(233,744)	(226,515)
Net Book Value	147,234	139,690
Equipment
Property Plant And Equipment [Line Items]
Cost	141,923	145,120
Accumulated Depreciation and Amortization	(84,540)	(87,649)
Net Book Value	57,383	57,471
Finance leases
Property Plant And Equipment [Line Items]
Cost	6,593	6,593
Accumulated Depreciation and Amortization	(4,433)	(4,361)
Net Book Value	$ 2,160	$ 2,232

Premises and Equipment - Additional Information (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) branch	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Property Plant And Equipment [Line Items]
Depreciation and amortization (including capital lease amortization) included in noninterest expense	$ 21,400,000	$ 21,100,000	$ 20,200,000
Number of branches closed \| branch	12
Premises
Property Plant And Equipment [Line Items]
Impairment charge	$ 0	0	1,600,000
Equipment
Property Plant And Equipment [Line Items]
Impairment charge	$ 0	$ 0	$ 1,600,000

Other Assets - Schedule of Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Federal Home Loan Bank of Des Moines and Federal Reserve Bank Stock	$ 53,065	$ 36,624
Derivative Financial Instruments	47,717	42,011
Low-Income Housing and Other Equity Investments	175,283	136,647
Deferred Compensation Plan Assets	47,755	56,411
Prepaid Expenses	18,651	17,670
Accounts Receivable	12,168	13,323
Deferred Tax Assets	177,713	42,277
Other	41,636	39,764
Total Other Assets	$ 573,988	$ 384,727

Deposits - Additional Information (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deposits [Abstract]
Total time deposits	$ 1,705,737	$ 1,000,089
Government entity deposits	1,600,000	1,200,000
Total time deposits100,000 or more	$ 1,524,959	$ 800,000

Deposits - Schedule of Time Deposits with Contractual Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Time deposits classified according to the contractual maturities
2023	$ 1,420,852
2024	128,304
2025	32,907
2026	102,929
2027	12,972
Thereafter	7,773
Total	1,705,737	$ 1,000,089
Time deposits with balances of $100,000 or more, classified according to the contractual maturities
Three Months or Less	764,339
Over Three Months through Six Months	202,862
Over Six Months through Twelve Months	348,755
Over Twelve Months	209,003
Total	$ 1,524,959	$ 800,000

Securities Sold Under Agreements to Repurchase - Details of Securities Sold Under Agreements to Repurchase (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Short Term Debt [Line Items]
Amounts Outstanding	$ 725,490	$ 450,490
Weighted-Average Interest Rate	2.96%	2.46%
Weighted-Avg Maturity (in years)	3 years 8 months 12 days	3 years
Private Institutions
Short Term Debt [Line Items]
Amounts Outstanding	$ 725,000	$ 450,000
Weighted-Average Interest Rate	2.97%	2.46%
Weighted-Avg Maturity (in years)	3 years 8 months 12 days	3 years
Government Entities
Short Term Debt [Line Items]
Amounts Outstanding	$ 490	$ 490
Weighted-Average Interest Rate	1.55%	1.55%
Weighted-Avg Maturity (in years)	1 year 10 months 24 days	2 years 10 months 24 days

Securities Sold Under Agreements to Repurchase - Remaining Contractual Maturities of Repurchase Agreements by Class of Collateral Pledged (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	$ 725,490	$ 450,490
Debt Securities Issued by States and Political Subdivisions
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	490	490
Residential - Government Agencies
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	28,673	52,092
Residential - U.S. Government-Sponsored Enterprises
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	696,327	397,908
Maturity Up To 90 Days
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
Maturity Up To 90 Days \| Debt Securities Issued by States and Political Subdivisions
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
Maturity Up To 90 Days \| Residential - Government Agencies
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
Maturity Up To 90 Days \| Residential - U.S. Government-Sponsored Enterprises
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
Maturity 91 To 365 Days
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
Maturity 91 To 365 Days \| Debt Securities Issued by States and Political Subdivisions
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
Maturity 91 To 365 Days \| Residential - Government Agencies
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
Maturity 91 To 365 Days \| Residential - U.S. Government-Sponsored Enterprises
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
Maturity 1 To 3 Years
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	425,000	275,000
Maturity 1 To 3 Years \| Debt Securities Issued by States and Political Subdivisions
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	0
Maturity 1 To 3 Years \| Residential - Government Agencies
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	28,673	38,685
Maturity 1 To 3 Years \| Residential - U.S. Government-Sponsored Enterprises
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	396,327	236,315
Maturity After 3 Years
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	300,490	175,490
Maturity After 3 Years \| Debt Securities Issued by States and Political Subdivisions
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	490	490
Maturity After 3 Years \| Residential - Government Agencies
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	13,407
Maturity After 3 Years \| Residential - U.S. Government-Sponsored Enterprises
Assets Sold Under Agreements To Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	$ 300,000	$ 161,593

Other Debt - Schedule of Other Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Finance Lease Obligations	$ 10,294	$ 10,391
Total	410,294	$ 10,391
Federal Home Loan Bank Advance
Debt Instrument [Line Items]
Federal Home Loan Bank of Des Moines Advances	$ 400,000

- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References + Details

Other Debt - Additional Information (Details)	12 Months Ended
Other Debt - Additional Information (Details)	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Maximum percentage of the total assets that can be borrowed from the FHLB by the entity	45.00%
Federal Reserve Bank Advances
Debt Instrument [Line Items]
Undrawn line of credit with the FHLB or FRB	$ 603,400,000
Federal Home Loan Bank Advance
Debt Instrument [Line Items]
Undrawn line of credit with the FHLB or FRB	2,800,000,000
Federal Home Loan Bank of Des Moines Advances	$ 400,000,000
Weighted average interest rate	4.16%
Maturity year	2027
Finance Lease Obligations
Debt Instrument [Line Items]
Lease term (in years)	60 years

Shareholders' Equity - Schedule of Minimum Required Capital Amounts and Ratios for Well Capitalized Institutions and The Actual Capital Amounts and Ratios for The Company and The Bank (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Minimum required capital amounts and ratios for well capitalized institutions and the actual capital amounts [Line Items]
Common Shareholders’ Equity	$ 1,316,995	$ 1,611,611	$ 1,374,507	$ 1,286,832
Well Capitalized Minimum Common Equity Tier One Ratio (as a percent)	6.50%	6.50%
Well Capitalized Minimum Tier 1 Capital Ratio (as a percent)	0.080	0.080
Well Capitalized Minimum Total Capital Ratio (as a percent)	0.100	0.100
Well Capitalized Minimum Tier 1 Leverage Ratio (as a percent)	0.050	0.050
Parent [Member]
Minimum required capital amounts and ratios for well capitalized institutions and the actual capital amounts [Line Items]
Common Shareholders’ Equity	$ 1,141,507	$ 1,436,124
Common Equity Tier One Capital	1,554,741	1,483,455
Tier 1 Capital	1,730,228	1,658,942
Total Capital	$ 1,875,430	$ 1,811,943
Common Equity Tier One Capital Ratio	10.92%	12.12%
Tier 1 Capital Ratio (as a percent)	0.1215	0.1356
Total Capital Ratio (as a percent)	0.1317	0.1481
Tier 1 Leverage Ratio (as a percent)	0.0737	0.0732
Subsidiaries [Member]
Minimum required capital amounts and ratios for well capitalized institutions and the actual capital amounts [Line Items]
Common Shareholders’ Equity	$ 1,279,736	$ 1,586,473
Common Equity Tier One Capital	1,704,570	1,645,405
Tier 1 Capital	1,704,570	1,645,405
Total Capital	$ 1,849,772	$ 1,798,190
Common Equity Tier One Capital Ratio	11.98%	13.47%
Tier 1 Capital Ratio (as a percent)	0.1198	0.1347
Total Capital Ratio (as a percent)	0.1300	0.1472
Tier 1 Leverage Ratio (as a percent)	0.0727	0.0726

Shareholders' Equity - Additional Information (Details) $ / shares in Units, $ in Thousands		12 Months Ended			258 Months Ended
	Jun. 15, 2021 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) yr $ / shares shares	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2020 USD ($)	Dec. 31, 2022 USD ($) $ / shares shares
Dividends
Number of prior calendar years considered for payment of dividends in excess of the sum of net income \| yr		2
Common Stock Repurchase Program
Number of shares of common stock repurchased \| shares		627,629			58,000,000.0
Amount returned to shareholders on stock repurchase \| $		$ 55,063	$ 31,258	$ 18,006	$ 2,400,000
Average cost of shares repurchased (in dollars per share)		$ 79.41			$ 41.17
Treasury Stock Value Acquired Cost Method Share Repurchase Program \| $		$ 49,800
Preferred Stock, par value (in dollars per share)		$ 0.01	$ 0.01		$ 0.01
Net proceeds, after underwriting discounts and expenses \| $			$ 175,487
Depositary Shares
Common Stock Repurchase Program
Shares issued and sold \| shares	7,200,000
Preferred stock, redemption price per share	$ 25
4.375% Fixed Rate Non-Cumulative Perpetual Preferred Stock
Common Stock Repurchase Program
Percentage of ownership interest in share	0.025%
Series A Preferred Stock
Common Stock Repurchase Program
Preferred stock, dividend rate, percentage per annum	4.375%
Preferred Stock, par value (in dollars per share)	$ 0.01
Preferred stock, liquidation preference per share	$ 1,000
Net proceeds, after underwriting discounts and expenses \| $	$ 175,500
Preferred stock, voting rights	Holders of the Series A Preferred Stock will not have voting rights
Preferred stock, redemption price per share	$ 1,000
Preferred Stock, redemption date	Aug. 01, 2026
Preferred Stock, Redemption Terms	The Company may redeem the Series A Preferred Stock at its option, (i) in whole or in part, from time to time, on any dividend payment date on or after August 1, 2026 or (ii) in whole but not in part, at any time within 90 days following a regulatory capital treatment event, in either case at a redemption price equal to $1,000 per share (equivalent to $25 per depositary share), plus any declared and unpaid dividends.
Accounting Standards Update 2016-13
Class Of Stock [Line Items]
Percentage of allowance for credit losses after-tax		25.00%
Regulatory capital commencing period		Jan. 01, 2022
Percentage of allowance for credit losses pre-tax		25.00%
Percentage of cumulative adjustment to allowance for credit losses		25.00%
Minimum
Class Of Stock [Line Items]
Additional Tier 1 capital ratio		0.025			0.025

Shareholders' Equity - AOCI Components Pre Post & Tax Effect (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Comprehensive Income (Loss), Before Tax:
Net Unrealized Gains (Losses) Arising During the Period	$ (523,221)	$ (111,084)	$ 58,763
(Gain) Loss on Sale		(3,798)	(77)
Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities	10,680	648	397
Net Unrealized Gains (Losses) on Investment Securities	(512,541)	(114,234)	59,083
Net Actuarial Gains (Losses) Arising During the Period	9,525	10,842	(8,187)
Amortization of Net Actuarial Losses (Gains)	2,175	2,676	2,318
Amortization of Prior Service Credit	(246)	(246)	(246)
Defined Benefit Plans, Net	11,454	13,272	(6,115)
Other Comprehensive Income (Loss)	(501,087)	(100,962)	52,968
Other Comprehensive Income (Loss), Tax Effect:
Net Unrealized Gains (Losses) Arising During the Period	(138,678)	(29,440)	15,600
(Gain) Loss on Sale		(1,007)	(50)
Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities	2,831	171	105
Net Unrealized Gains (Losses) on Investment Securities	(135,847)	(30,276)	15,655
Net Actuarial Gains (Losses) Arising During the Period	2,525	2,874	(2,170)
Amortization of Net Actuarial Losses (Gains)	576	709	614
Amortization of Prior Service Credit	(65)	(65)	(65)
Defined Benefit Plans, Net	3,036	3,518	(1,621)
Other Comprehensive Income (Loss)	(132,811)	(26,758)	14,034
Other Comprehensive Income (Loss), Net of Tax:
Net Unrealized Gains (Losses) Arising During the Period	(384,543)	(81,644)	43,163
(Gain) Loss on Sale		(2,791)	(27)
Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities	7,849	477	292
Net Unrealized Gains (Losses) on Investment Securities	(376,694)	(83,958)	43,428
Net Actuarial Gains (Losses) Arising During the Period	7,000	7,968	(6,017)
Amortization of Net Actuarial Losses (Gains)	1,599	1,967	1,704
Amortization of Prior Service Credit	(181)	(181)	(181)
Defined Benefit Plans, Net	8,418	9,754	(4,494)
Other Comprehensive Income (Loss)	$ (368,276)	$ (74,204)	$ 38,934

Shareholders' Equity - Change in AOCI Components Net of Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at Beginning of Period	$ 1,611,611	$ 1,374,507	$ 1,286,832
Other Comprehensive Income (Loss)	(368,276)	(74,204)	38,934
Balance at End of Period	1,316,995	1,611,611	1,374,507
Unrealized Gains and Losses on Net Investment Securities \| Available-for-sale Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at Beginning of Period	(32,940)	51,495	8,359
Other Comprehensive Income (Loss) Before Reclassifications	(384,543)	(81,644)	43,163
Unrealized Net Losses Related to the Transfer of Securities from Available-for-Sale to Held-to-Maturity	176,700
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)		(2,791)	(27)
Other Comprehensive Income (Loss)	(207,843)	(84,435)	43,136
Balance at End of Period	(240,783)	(32,940)	51,495
Unrealized Gains and Losses on Net Investment Securities \| Held-to-maturity Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at Beginning of Period	54	(423)	(715)
Unrealized Net Losses Related to the Transfer of Securities from Available-for-Sale to Held-to-Maturity	(176,700)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	7,849	477	292
Other Comprehensive Income (Loss)	(168,851)	477	292
Balance at End of Period	(168,797)	54	(423)
Defined Benefit Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at Beginning of Period	(33,496)	(43,250)	(38,756)
Other Comprehensive Income (Loss) Before Reclassifications	7,000	7,968	(6,017)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	1,418	1,786	1,523
Other Comprehensive Income (Loss)	8,418	9,754	(4,494)
Balance at End of Period	(25,078)	(33,496)	(43,250)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at Beginning of Period	(66,382)	7,822	(31,112)
Other Comprehensive Income (Loss) Before Reclassifications	(377,543)	(73,676)	37,146
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	9,267	(528)	1,788
Other Comprehensive Income (Loss)	(368,276)	(74,204)	38,934
Balance at End of Period	$ (434,658)	$ (66,382)	$ 7,822

Shareholders' Equity - AOCI Reclass to IS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Income Tax Benefit (Expense)	$ (64,830)	$ (72,182)	$ (35,320)
Net Income	225,804	253,372	153,804
Salaries and Benefits	(235,270)	(228,293)	(207,329)
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Net Income	(9,267)	528	(1,788)
Reclassification out of Accumulated Other Comprehensive Income \| Amortization of Unrealized Gains(Losses) of Investment Securities Transferred from AFS to HTM
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Interest Income	(10,680)	(648)	(397)
Income Tax Benefit (Expense)	2,831	171	105
Net Income	(7,849)	(477)	(292)
Reclassification out of Accumulated Other Comprehensive Income \| Sales of Investment Securities Available-for-Sale
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Income Tax Benefit (Expense)		(1,007)	(50)
Net Income		2,791	27
Sales of Investment Securities Available-for-Sale		3,798	77
Reclassification out of Accumulated Other Comprehensive Income \| Prior Service Credit
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Salaries and Benefits	246	246	246
Reclassification out of Accumulated Other Comprehensive Income \| Net Actuarial Losses
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Salaries and Benefits	(2,175)	(2,676)	(2,318)
Reclassification out of Accumulated Other Comprehensive Income \| Amortization of Defined Benefit Plans Items
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Income Tax Benefit (Expense)	511	644	549
Net Income	(1,418)	(1,786)	(1,523)
Salaries and Benefits	$ (1,929)	$ (2,430)	$ (2,072)

Earnings Per Common Share - Schedule of Reconciliation of Weighted Average Number of Common Shares Used in the Calculation of Basic and Diluted Earnings Per Common Share and Antidilutive Stock Options and Restricted Stock Outstanding (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Numerator:
Net Income Available to Common Shareholders	$ 217,927	$ 250,397	$ 153,804
Denominator:
Weighted Average Common Shares Outstanding - Basic	39,601,089	39,837,798	39,726,210
Dilutive Effect of Equity Based Awards (in shares)	186,913	215,866	165,897
Weighted Average Common Shares Outstanding - Diluted	39,788,002	40,053,664	39,892,107
Earnings Per Common Share:
Basic	$ 5.50	$ 6.29	$ 3.87
Diluted	$ 5.48	$ 6.25	$ 3.86
Antidilutive Stock Options and Restricted Stock Outstanding (in shares)		41,802	113,410

Business Segments - Additional Information (Details)	12 Months Ended
Business Segments - Additional Information (Details)	Dec. 31, 2022
Segment Reporting [Abstract]
Federal and state effective tax rate used for segment reporting	26.00%

Business Segments - Selected Business Segment Financial Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Business segment financial information
Net Interest Income	$ 540,558	$ 497,290	$ 496,322
Provision for Credit Losses	(7,800)	(50,500)	117,800
Net Interest Income (Loss) After Provision for Credit Losses	548,358	547,790	378,522
Noninterest Income	157,541	171,353	184,409
Noninterest Expense	(415,265)	(393,589)	(373,807)
Income (Loss) Before Provision for Income Taxes	290,634	325,554	189,124
Provision for Income Taxes	(64,830)	(72,182)	(35,320)
Net Income	225,804	253,372	153,804
Total Assets	23,606,877	22,784,941	20,603,651
Consumer Banking
Business segment financial information
Net Interest Income	327,940	284,597	293,451
Provision for Credit Losses	5,324	5,764	8,087
Net Interest Income (Loss) After Provision for Credit Losses	322,616	278,833	285,364
Noninterest Income	126,336	131,292	128,399
Noninterest Expense	(330,561)	(304,177)	(289,590)
Income (Loss) Before Provision for Income Taxes	118,391	105,948	124,173
Provision for Income Taxes	(29,974)	(26,474)	(31,563)
Net Income	88,417	79,474	92,610
Total Assets	8,545,896	7,701,447	7,507,825
Commercial Banking
Business segment financial information
Net Interest Income	209,272	194,409	188,626
Provision for Credit Losses	(205)	201	(948)
Net Interest Income (Loss) After Provision for Credit Losses	209,477	194,208	189,574
Noninterest Income	25,937	30,637	34,523
Noninterest Expense	(70,601)	(64,470)	(63,294)
Income (Loss) Before Provision for Income Taxes	164,813	160,375	160,803
Provision for Income Taxes	(40,659)	(39,070)	(40,081)
Net Income	124,154	121,305	120,722
Total Assets	5,522,916	5,107,001	5,116,807
Treasury and Other
Business segment financial information
Net Interest Income	3,346	18,284	14,245
Provision for Credit Losses	(12,919)	(56,465)	110,661
Net Interest Income (Loss) After Provision for Credit Losses	16,265	74,749	(96,416)
Noninterest Income	5,268	9,424	21,487
Noninterest Expense	(14,103)	(24,942)	(20,923)
Income (Loss) Before Provision for Income Taxes	7,430	59,231	(95,852)
Provision for Income Taxes	5,803	(6,638)	36,324
Net Income	13,233	52,593	(59,528)
Total Assets	$ 9,538,065	$ 9,976,493	$ 7,979,019

Employee Benefits - Additional Information (Details)	12 Months Ended
Employee Benefits - Additional Information (Details)	Dec. 31, 2022 USD ($) d plan yr Component	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Number of company contribution components, Retirement Savings Plan \| Component	3
Fixed percentage of employer's contribution based on eligible compensation	3.00%
Employee contribution limit per calendar year (as a percent of compensation)	50.00%
Employer match of employee contributions up to 2% of eligible compensation	1.25%
Percentage of eligible compensation, matched $1.25 for by employer for each dollar amount contributed by participants	2.00%
Employer match of employee contributions over 2% up to 5% of eligible compensation	$ 0.50
Employee's contribution matched by employer (in dollars)	$ 1.00
Percentage of eligible compensation, matched $0.50 for by employer for each dollar amount contributed by participants, low end of range	2.00%
Percentage of eligible compensation, matched $0.50 for by employer for each dollar amount contributed by participants, high end of range	5.00%
Total expense for all components of the company's defined contribution plans	$ 13,200,000	$ 16,000,000.0	$ 14,000,000.0
Effect of market fluctuations in cash flow on target allocation limits (as a percent)	5.00%
Period during which asset allocation is expected to conform to range limits (in days) \| d	90
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities, percentage of variable component in strategic targets (as a percent)	10.00%
Maximum
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities, percentage of variable component in strategic targets (as a percent)	20.00%
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	60.00%
Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	40.00%
Cash \| Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Effect of market fluctuations in cash flow on target allocation limits (as a percent)	0.00%
Cash \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Effect of market fluctuations in cash flow on target allocation limits (as a percent)	20.00%
Equity Securities, Domestic \| Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	50.00%
Equity Securities, Domestic \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	100.00%
Equity Securities, International \| Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	0.00%
Equity Securities, International \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	50.00%
S&P 500 Index
Defined Benefit Plan Disclosure [Line Items]
Performance benchmark (as a percent)	36.00%
MSCI EAFE Index
Defined Benefit Plan Disclosure [Line Items]
Performance benchmark (as a percent)	24.00%
Barclays Capital Aggregate Bond Index
Defined Benefit Plan Disclosure [Line Items]
Performance benchmark (as a percent)	40.00%
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Number of defined benefit plans \| plan	2
Actuarial Losses (Gains)	$ 22,049,000	2,817,000
Expected future employer contributions, next fiscal year	400,000
Pension Benefits \| Excess Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	$ 2,700,000	3,300,000
Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Retirees' age and above which Medicare supplemental plan subsidy is provided (in years) \| yr	65
Limit on annual credit provided in HRA to eligible employees	$ 1,200,000
Actuarial Losses (Gains)	$ 7,577,000	2,514,000
Ultimate health care cost trend rate (as a percent)	4.00%
Ultimate health care cost trend rate period	2047
Expected future employer contributions, next fiscal year	$ 1,400,000
Other Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Actuarial Losses (Gains)	(21,900,000)	(4,300,000)
Postemployment Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Actuarial Losses (Gains)	$ (7,500,000)	$ (1,300,000)

Employee Benefits - Schedule of Reconciliation of Changes in Benefit Obligation and Fair value of Plan Assets As Well As the Funded Status Recognized in the Consolidated Statements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension Benefits
Reconciliation of changes in benefit obligations
Benefit Obligation at Beginning of Year	$ 110,585	$ 117,647
Service Cost	0	0	$ 0
Interest Cost	3,097	2,924	3,627
Actuarial Losses (Gains)	(22,049)	(2,817)
Employer Benefits Paid	(7,179)	(7,169)
Benefit Obligation at End of Year	84,454	110,585	117,647
Reconciliation of changes in fair value of plan assets
Fair Value of Plan Assets at Beginning of Year	101,294	97,890
Actual Return on Plan Assets	(15,261)	10,103
Employer Contributions	470	470
Employer Benefits Paid	(7,179)	(7,169)
Fair Value of Plan Assets at End of Year	79,324	101,294	97,890
Funded Status at End of Year	(5,130)	(9,291)
Postretirement Benefits
Reconciliation of changes in benefit obligations
Benefit Obligation at Beginning of Year	29,270	31,507
Service Cost	584	678	578
Interest Cost	861	816	945
Actuarial Losses (Gains)	(7,577)	(2,514)
Employer Benefits Paid	(1,209)	(1,217)
Benefit Obligation at End of Year	21,929	29,270	$ 31,507
Reconciliation of changes in fair value of plan assets
Employer Contributions	1,209	1,217
Employer Benefits Paid	(1,209)	(1,217)
Funded Status at End of Year	$ (21,929)	$ (29,270)

Employee Benefits - Schedule of Reconciliation of Changes in Benefit Obligation and Fair value of Plan Assets As Well As the Funded Status Recognized in the Consolidated Statements (Parenthetical) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Participants contributions	$ 0.8	$ 0.8

Employee Benefits - Schedule of Amounts Recognized in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Pension Benefits
Amounts Recognized in Accumulated Other Comprehensive Income (Loss), Net of Tax
Net Actuarial Gains (Losses)	$ (31,984)	$ (35,014)
Net Prior Service Credit	0	0
Total Amounts Recognized in Accumulated Other Comprehensive Income (Loss), Net of Tax	(31,984)	(35,014)
Postretirement Benefits
Amounts Recognized in Accumulated Other Comprehensive Income (Loss), Net of Tax
Net Actuarial Gains (Losses)	5,803	235
Net Prior Service Credit	1,103	1,283
Total Amounts Recognized in Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 6,906	$ 1,518

Employee Benefits - Schedule of Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension Benefits
Net periodic benefit cost for pension plans and the postretirement benefit plan
Service Cost	$ 0	$ 0	$ 0
Interest Cost	$ 3,097	$ 2,924	$ 3,627
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Salaries and Benefits	Salaries and Benefits	Salaries and Benefits
Expected Return on Plan Assets	$ (4,840)	$ (4,592)	$ (5,028)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other	Other	Other
Amortization of Prior Service Credit	$ 0	$ 0	$ 0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other	Other	Other
Amortization of Net Actuarial Losses (Gains)	$ 2,175	$ 2,676	$ 2,318
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other	Other	Other
Net Periodic Benefit Cost	$ 432	$ 1,008	$ 917
Postretirement Benefits
Net periodic benefit cost for pension plans and the postretirement benefit plan
Service Cost	584	678	578
Interest Cost	$ 861	$ 816	$ 945
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Salaries and Benefits	Salaries and Benefits	Salaries and Benefits
Expected Return on Plan Assets	$ 0	$ 0	$ 0
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other	Other	Other
Amortization of Prior Service Credit	$ (246)	$ (246)	$ (246)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other	Other	Other
Amortization of Net Actuarial Losses (Gains)	$ 0	$ 0	$ 0
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other	Other	Other
Net Periodic Benefit Cost	$ 1,199	$ 1,248	$ 1,277

Employee Benefits - Schedule of Assumptions Used to Determine the Benefit Obligations/net Periodic Cost (Details)	Dec. 31, 2022	Dec. 31, 2021
Pension Benefits
Weighted average assumptions used to determine the benefit obligations
Discount Rate	5.51%	2.89%
Postretirement Benefits
Weighted average assumptions used to determine the benefit obligations
Discount Rate	5.58%	3.00%
Health Care Cost Trend Rate Assumed For Next Year	6.20%	5.70%

Employee Benefits - Schedule of Assumptions Used in Calculation Net Periodic Benefit Cost (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension Benefits
Weighted average assumptions used to determine the net periodic benefit cost
Discount Rate	2.89%	2.55%	3.36%
Expected Long-Term Rate of Return on Plan Assets	5.25%	5.25%	5.75%
Health Care Cost Trend Rate	0.00%	0.00%	0.00%
Postretirement Benefits
Weighted average assumptions used to determine the net periodic benefit cost
Discount Rate	3.00%	2.66%	3.42%
Expected Long-Term Rate of Return on Plan Assets	0.00%	0.00%	0.00%
Health Care Cost Trend Rate	5.70%	5.50%	5.70%

Employee Benefits - Schedule of Expected Benefits to be Paid in Each of the Next Five Years and in the Aggregate for the Five Years Thereafter (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Pension Benefits
Expected benefits to be paid in each of the next five years and in the aggregate for the five years thereafter
2023	$ 7,471
2024	7,426
2025	7,393
2026	7,316
2027	7,201
Years 2028-2032	33,630
Postretirement Benefits
Expected benefits to be paid in each of the next five years and in the aggregate for the five years thereafter
2023	1,377
2024	1,402
2025	1,467
2026	1,521
2027	1,585
Years 2028-2032	$ 8,573

Employee Benefits - Schedule of the Fair Values of the Retirement Plan Assets by Asset Category (Details) - Pension Benefits - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 79,324	$ 101,294	$ 97,890
Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	79,324
Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	589	618
Cash \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	589
Equity Securities - Large Cap
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4,979	511
Equity Securities - Large Cap \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4,979
Equity Security - Mutual Funds: Mixed-Cap
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	23,632	33,108
Equity Security - Mutual Funds: Mixed-Cap \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	23,632
Equity Security - Mutual Funds: International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18,283	29,022
Equity Security - Mutual Funds: International \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18,283
Equity Security - Mutual Funds: Emerging Market
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	757	1,786
Equity Security - Mutual Funds: Emerging Market \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	757
Fixed Income - Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	31,084	$ 36,249
Fixed Income - Mutual Funds \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 31,084

Share-Based Compensation - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation [Line Items]
Total shares authorized	2,100,000
Shares available for future grants of stock options or restricted stock	1,100,000
Stock awards granted during period	0	0	0
Stock Options
Share-based Compensation [Line Items]
Expiration period	10 years
Restricted Stock
Share-based Compensation [Line Items]
Unrecognized compensation cost related to unvested restricted stock	$ 23.2
Weighted average period during which unrecognized compensation cost is expected to be recognized (in years)	2 years 29 days
Restricted Stock \| Minimum [Member]
Share-based Compensation [Line Items]
Vesting period (in years)	1 year
Restricted Stock \| Maximum
Share-based Compensation [Line Items]
Vesting period (in years)	5 years

Share-Based Compensation - Schedule of Compensation Expense and Related Income Tax Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Compensation Expense	$ 16,066	$ 13,267	$ 7,578
Income Tax Benefit	$ 4,262	$ 3,520	$ 2,009

Share-Based Compensation - Schedule of Activity for Restricted Stock (Details) - Restricted Stock - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Number of Shares
Unvested, Beginning Balance	500,536	328,769	309,949
Granted	192,030	292,007	161,168
Vested	(138,823)	(97,278)	(99,894)
Forfeited	(13,074)	(22,962)	(42,454)
Unvested, Ending Balance	540,669	500,536	328,769
Weighted Average Grant Date Fair Value
Unvested, Beginning Balance	$ 87.28	$ 82.02	$ 83.75
Granted	85.80	90.23	80.97
Vested	83.21	78.55	84.69
Forfeited	86.96	86.48	84.36
Unvested, Ending Balance	$ 87.81	$ 87.28	$ 82.02
Grant Date Fair Value of Restricted Stock that Vested During the Year
Vested	$ 11,640	$ 8,673	$ 8,544

Share-Based Compensation - Schedule of Activity for Restricted Stock (Parenthetical) (Details)	Dec. 31, 2022 shares
Service-based Restricted Stock
Share-based Compensation [Line Items]
Unvested shares	107,975

Share-Based Compensation - Schedule of Activity Related to Stock Options (Details)	12 Months Ended
	Dec. 31, 2022 $ / shares shares
Stock Options
Stock Options Outstanding, Beginning Balance \| shares	17,301
Exercised \| shares	(16,468)
Expired \| shares	(833)
Weighted Average Exercise Price
Outstanding Beginning Balance \| $ / shares	$ 47.72
Exercised \| $ / shares	47.72
Expired \| $ / shares	$ 47.72

Share-Based Compensation - Summary of Certain Stock Option Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Stock options activity
Intrinsic Value of Stock Options Exercised	$ 679	$ 6,755	$ 2,261
Cash Received from Stock Options Exercised	786	7,473	2,438
Tax Benefits Realized from Stock Options Exercised	$ 166	$ 1,611	$ 485

Income Taxes - Schedule of the Company's Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current:
Federal	$ 59,855	$ 58,652	$ 65,840
State	7,688	10,510	12,066
Total Current	67,543	69,162	77,906
Deferred:
Federal	(3,247)	2,254	(31,783)
State	534	766	(10,803)
Total Deferred	(2,713)	3,020	(42,586)
Provision for Income Taxes	$ 64,830	$ 72,182	$ 35,320

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Net tax (benefit)/charge recorded directly to consolidated shareholders' equity	$ 132,700	$ (26,800)	$ 16,200
Valuation allowance	6,222	3,203
Base year reserves included in retained earnings	18,200
Unrecognized deferred federal income tax liability	4,800
Amount related to unrecognized tax benefits that if reversed would impact effective tax rate	3,700	4,000
Interest and penalties expense/(benefit) related to the liability for unrecognized tax benefits	(100)	(100)	$ (100)
Balance of accrual for interest and penalties	$ 1,300	$ 1,500

Income Taxes - Schedule of Significant Components of the Company's Deferred Tax Liabilities and Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred Tax Liabilities:
Accelerated Depreciation	$ (7,958)	$ (8,131)
Accrued Pension Cost	(11,270)	(11,270)
Federal Home Loan Bank of Des Moines Stock	(6,597)	(2,885)
Lease Transactions	(25,741)	(37,585)
Operating Lease Liabilities	(24,469)	(25,348)
Investment in Variable Interest Entities	(700)	(1,657)
Deferred Loan Fees	(4,798)	(3,845)
Originated Mortgage Servicing Rights	(6,008)	(6,068)
Other	(909)	(915)
Gross Deferred Tax Liabilities	(88,450)	(97,704)
Deferred Tax Assets:
Allowance for Credit Losses	40,056	43,348
Minimum Pension Liability	9,046	12,082
Accrued Expenses	20,066	22,416
Postretirement Benefit Obligations	7,005	7,170
Capital Lease Expenses	2,156	2,163
Operating Lease Right-of-Use Assets	26,648	27,360
Restricted Stock	5,988	4,442
Net Unrealized Losses on Investments Securities	147,716	11,868
Deductible State and Local Taxes	2,360	3,239
Low Income Housing Investments	5,349	3,007
Other	5,995	6,089
Gross Deferred Tax Assets Before Valuation Allowance	272,385	143,184
Valuation Allowance	(6,222)	(3,203)
Gross Deferred Tax Assets After Valuation Allowance	266,163	139,981
Net Deferred Tax Assets	$ 177,713	$ 42,277

Income Taxes - Schedule of Reconciliation of the Statutory Federal Income Tax Rate to the Company's Effective Tax Rate (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of the Statutory Federal Income Tax Rate to the Company's Effective Tax Rate
Statutory Federal Income Tax Rate	21.00%	21.00%	21.00%
Increase (Decrease) in Income Tax Rate Resulting From:
State Taxes, Net of Federal Income Tax	2.08%	2.85%	0.81%
Low-Income Housing Investments	1.60%	0.77%	0.82%
Investment Tax Credits	(0.28%)	(0.35%)	(1.24%)
Bank-Owned Life Insurance	(0.72%)	(0.48%)	(0.82%)
Tax-Exempt Income	(0.20%)	(0.24%)	(0.50%)
Leveraged Lease	(0.84%)	(0.10%)	(0.56%)
Other	(0.33%)	(1.28%)	(0.83%)
Effective Tax Rate	22.31%	22.17%	18.68%

Income Taxes - Schedule of Reconciliation of the Company's Liability for Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of liability for Unrecognized Tax Benefits
Unrecognized Tax Benefits at Beginning of Year	$ 4,015	$ 5,403	$ 6,120
Gross Increases, Related to Tax Positions Taken in a Prior Period	1	261	374
Gross Decreases, Related to Tax Positions Taken in a Prior Period	(26)	(1,285)
Gross Increases, Related to Current Period Tax Positions	226	234	222
Lapse of Statute of Limitations	(520)	(598)	(1,313)
Unrecognized Tax Benefits at End of Year	$ 3,696	$ 4,015	$ 5,403

Derivative Financial Instruments - Schedule of the Notional Amount and Fair Value of the Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Interest Rate Lock Commitments
Derivative [Line Items]
Notional Amount	$ 3,860	$ 45,857
Fair Value	58	1,084
Forward Commitments
Derivative [Line Items]
Notional Amount	3,256	58,523
Fair Value	6	(35)
Receive Fixed / Pay Variable Swap
Derivative [Line Items]
Notional Amount	1,821,433	1,400,322
Fair Value	(160,914)	28,742
Pay Fixed / Receive Variable Swap
Derivative [Line Items]
Notional Amount	1,821,433	1,400,322
Fair Value	38,785	(5,922)
Foreign Exchange Contracts
Derivative [Line Items]
Notional Amount	52,065	102,548
Fair Value	1,745	(674)
Visa Conversion Rate Swap Agreement
Derivative [Line Items]
Notional Amount	$ 124,752	$ 131,672

Derivative Financial Instruments - Derivative Financial Instruments, their Fair Values, and Balance Sheet Location (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Derivatives Fair Value [Line Items]
Asset Derivatives	$ 47,717	$ 42,011
Liability Derivatives	168,037	18,816
Interest Rate Lock Commitments
Derivatives Fair Value [Line Items]
Asset Derivatives	64	1,084
Liability Derivatives	6	0
Forward Commitments
Derivatives Fair Value [Line Items]
Asset Derivatives	10	17
Liability Derivatives	4	52
Interest Rate Swap Agreements
Derivatives Fair Value [Line Items]
Asset Derivatives	45,831	40,733
Liability Derivatives	167,960	17,913
Foreign Exchange Contracts
Derivatives Fair Value [Line Items]
Asset Derivatives	1,812	177
Liability Derivatives	$ 67	$ 851

Derivative Financial Instruments - Derivative Financial Instruments and the Amount and Location of the Net Gains or Losses Recognized in the Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	$ 3,269	$ 11,890	$ 19,885
Interest Rate Lock Commitments \| Mortgage Banking Income
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	$ (915)	$ 8,771	$ 22,348
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Mortgage Banking	Mortgage Banking	Mortgage Banking
Forward Commitments \| Mortgage Banking Income
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	$ 2,348	$ 1,580	$ (4,274)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Mortgage Banking	Mortgage Banking	Mortgage Banking
Interest Rate Swap Agreements \| Other Noninterest Income
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	$ 44	$ 77	$ (129)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other	Other	Other
Foreign Exchange Contracts \| Other Noninterest Income
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	$ 1,792	$ 1,462	$ 1,940
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other	Other	Other

Derivative Financial Instruments - Additional Information (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Liability derivatives	$ 168,037,000	$ 18,816,000
Interest Rate Swap Agreements
Derivative [Line Items]
Fair values of counterparty interest rate swaps	0
Net asset and liability position, aggregate fair value	38,800,000	5,900,000
Liability derivatives	167,960,000	$ 17,913,000
Visa Class B Restricted Securities
Derivative [Line Items]
Liability derivatives	$ 0		$ 0

Affordable Housing Projects Tax Credit Partnerships - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Equity Method Investments And Joint Ventures [Abstract]
Net affordable housing tax credit investments and related unfunded commitments	$ 174,500,000	$ 134,700,000
Write down from impairment of LIHTC Investments	$ 0	$ 0	$ 0

Affordable Housing Projects Tax Credit Partnerships - Expected Payments for Unfunded Affordable Housing Commitments (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Affordable Housing Tax Credit Investments, Unfunded Commitment [Abstract]
2023	$ 41,142
2024	12,497
2025	24,115
2026	157
2027	58
Thereafter	10,790
Total Unfunded Commitments	$ 88,759

Affordable Housing Projects Tax Credit Partnerships - Tax Credits and Other Tax Benefits Recognized and Amortization Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Effective Yield Method
Tax credits and other tax benefits recognized	$ 6,116	$ 8,604	$ 11,752
Amortization Expense in Provision for Income Taxes	5,185	6,700	8,586
Proportional Amortization Method
Tax credits and other tax benefits recognized	15,174	10,831	6,633
Amortization Expense in Provision for Income Taxes	$ 13,131	$ 9,375	$ 5,729

Balance Sheet Offsetting - Schedule of Assets and Liabilities Subject to an Enforceable Master Netting Arrangement or Repurchase Agreements (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Liabilities:
Repurchase Agreements, Gross Amounts of Recognized Liabilities	$ 725,490	$ 450,490
Repurchase Agreements, Gross Amounts Offset in the Statements of Condition	0	0
Repurchase Agreements, Net Amounts of Liabilities Presented in the Statements of Condition	725,490	450,490
Securities Sold under Agreements to Repurchase, Net Amount Offset Against Collateral	0	0
Repurchase Agreements, Fair Value of Collateral Pledged	725,490	450,490
Private Institutions
Liabilities:
Repurchase Agreements, Gross Amounts of Recognized Liabilities	725,000	450,000
Repurchase Agreements, Gross Amounts Offset in the Statements of Condition	0	0
Repurchase Agreements, Net Amounts of Liabilities Presented in the Statements of Condition	725,000	450,000
Securities Sold under Agreements to Repurchase, Net Amount Offset Against Collateral	0	0
Repurchase Agreements, Fair Value of Collateral Pledged	725,000	450,000
Government Entities
Liabilities:
Repurchase Agreements, Gross Amounts of Recognized Liabilities	490	490
Repurchase Agreements, Gross Amounts Offset in the Statements of Condition	0	0
Repurchase Agreements, Net Amounts of Liabilities Presented in the Statements of Condition	490	490
Securities Sold under Agreements to Repurchase, Net Amount Offset Against Collateral	0	0
Repurchase Agreements, Fair Value of Collateral Pledged	490	490
Interest Rate Swap Agreements \| Institutional Counterparties
Assets:
Gross Amounts of Recognized Assets	42,339	26
Gross Amounts Offset in the Statements of Condition	0	0
Net Amounts of Assets Presented in the Statements of Condition	42,339	26
Netting Adjustments per Master Netting Arrangements	42,339	26
Gross Amounts Not Offset in the Statements of Condition - FV of collateral pledged	0	0
Derivative Assets, Net Amount	0	0
Liabilities:
Gross Amounts of Recognized Liabilities	3,554	5,948
Gross Amounts Offset in the Statements of Condition	0	0
Net Amounts of Liabilities Presented in the Statements of Condition	3,554	5,948
Derivative Liability, Netting Adjustments per Master Netting Arrangements	3,554	26
Derivative, Collateral, Right to Reclaim Securities	0	5,922
Derivative Liabilities, Net Amount	$ 0	$ 0

Balance Sheet Offsetting - Schedule of Assets and Liabilities Subject to an Enforceable Master Netting Arrangement or Repurchase Agreements (Parenthetical) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Interest Rate Swap Agreements
Offsetting Assets And Liabilities [Line Items]
Fair value of investment securities pledged	$ 34.8	$ 58.3
Private Institutions
Offsetting Assets And Liabilities [Line Items]
Fair value of investment securities pledged	755.9	523.4
Government Entities
Offsetting Assets And Liabilities [Line Items]
Fair value of investment securities pledged	$ 0.8	$ 1.3

Commitments and Contingencies - Credit Commitments (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Credit Commitments [Line Items]
Credit Commitments	$ 3,746,414
Unfunded Commitments to Extend Credit
Credit Commitments [Line Items]
Credit Commitments	3,592,872
Standby Letters of Credit
Credit Commitments [Line Items]
Credit Commitments	129,512
Commercial Letters of Credit
Credit Commitments [Line Items]
Credit Commitments	$ 24,030

Commitments and Contingencies - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)
Standby Letters of Credit
Representations and Warranties [Line Items]
Assets secured for standby letters of credit	$ 100.8
Standby and Commercial Letters of Credit \| Minimum [Member]
Representations and Warranties [Line Items]
Standby and commercial letters of credit remaining term	1 month
Standby and Commercial Letters of Credit \| Maximum
Representations and Warranties [Line Items]
Standby and commercial letters of credit remaining term	17 months

Fair Value of Assets and Liabilities - Balances of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets:
Available-for-Sale: Fair Value	$ 2,844,823	$ 4,276,056
Loans Held for Sale	1,035	26,746
Derivatives	47,717	42,011
Debt Securities Issued by States and Political Subdivisions
Assets:
Available-for-Sale: Fair Value	95,265	75,818
Debt Securities Issued by Government-Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	48,628	1,780
Debt Securities Issued by Corporations
Assets:
Available-for-Sale: Fair Value	794,658	383,113
Residential - Government Agencies
Assets:
Available-for-Sale: Fair Value	732,828	1,319,042
Residential - U.S. Government-Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	793,871	2,090,326
Commercial - Government Agencies - Sponsored Agencies
Assets:
Available-for-Sale: Fair Value	145,667	155,890
Mortgage-Backed Securities
Assets:
Available-for-Sale: Fair Value	1,672,366	3,565,258
Fair Value, Measurements, Recurring
Assets:
Available-for-Sale: Fair Value	2,844,823	4,276,056
Loans Held for Sale	1,035	26,746
Mortgage Servicing Rights	717	800
Other Assets	47,755	56,411
Derivatives	47,717	42,011
Total Assets Measured at Fair Value on a Recurring Basis	2,942,047	4,402,024
Liabilities:
Derivatives	$ 168,037	$ 18,816
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other Liabilities	Other Liabilities
Total Liabilities Measured at Fair Value on a Recurring Basis	$ 168,037	$ 18,816
Fair Value, Measurements, Recurring \| Debt Securities Issued by the U.S. Treasury and Government Agencies
Assets:
Available-for-Sale: Fair Value	233,906	250,087
Fair Value, Measurements, Recurring \| Debt Securities Issued by States and Political Subdivisions
Assets:
Available-for-Sale: Fair Value	95,265	75,818
Fair Value, Measurements, Recurring \| Debt Securities Issued by Government-Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	48,628	1,780
Fair Value, Measurements, Recurring \| Debt Securities Issued by Corporations
Assets:
Available-for-Sale: Fair Value	794,658	383,113
Fair Value, Measurements, Recurring \| Residential - Government Agencies
Assets:
Available-for-Sale: Fair Value	732,828	1,319,042
Fair Value, Measurements, Recurring \| Residential - U.S. Government-Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	793,871	2,090,326
Fair Value, Measurements, Recurring \| Commercial - Government Agencies - Sponsored Agencies
Assets:
Available-for-Sale: Fair Value	145,667	155,890
Fair Value, Measurements, Recurring \| Mortgage-Backed Securities
Assets:
Available-for-Sale: Fair Value	1,672,366	3,565,258
Fair Value, Measurements, Recurring \| Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1)
Assets:
Available-for-Sale: Fair Value	141,944	114,845
Loans Held for Sale	0	0
Mortgage Servicing Rights	0	0
Other Assets	47,755	56,411
Derivatives	0	0
Total Assets Measured at Fair Value on a Recurring Basis	189,699	171,256
Liabilities:
Derivatives	$ 0	$ 0
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other Liabilities	Other Liabilities
Total Liabilities Measured at Fair Value on a Recurring Basis	$ 0	$ 0
Fair Value, Measurements, Recurring \| Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) \| Debt Securities Issued by the U.S. Treasury and Government Agencies
Assets:
Available-for-Sale: Fair Value	141,944	114,845
Fair Value, Measurements, Recurring \| Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) \| Debt Securities Issued by States and Political Subdivisions
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring \| Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) \| Debt Securities Issued by Government-Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring \| Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) \| Debt Securities Issued by Corporations
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring \| Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) \| Residential - Government Agencies
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring \| Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) \| Residential - U.S. Government-Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring \| Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) \| Commercial - Government Agencies - Sponsored Agencies
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring \| Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) \| Mortgage-Backed Securities
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring \| Significant Other Observable Inputs (Level 2)
Assets:
Available-for-Sale: Fair Value	2,702,879	4,161,211
Loans Held for Sale	1,035	26,746
Mortgage Servicing Rights	0	0
Other Assets	0	0
Derivatives	1,822	194
Total Assets Measured at Fair Value on a Recurring Basis	2,705,736	4,188,151
Liabilities:
Derivatives	$ 70	$ 903
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other Liabilities	Other Liabilities
Total Liabilities Measured at Fair Value on a Recurring Basis	$ 70	$ 903
Fair Value, Measurements, Recurring \| Significant Other Observable Inputs (Level 2) \| Debt Securities Issued by the U.S. Treasury and Government Agencies
Assets:
Available-for-Sale: Fair Value	91,962	135,242
Fair Value, Measurements, Recurring \| Significant Other Observable Inputs (Level 2) \| Debt Securities Issued by States and Political Subdivisions
Assets:
Available-for-Sale: Fair Value	95,265	75,818
Fair Value, Measurements, Recurring \| Significant Other Observable Inputs (Level 2) \| Debt Securities Issued by Government-Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	48,628	1,780
Fair Value, Measurements, Recurring \| Significant Other Observable Inputs (Level 2) \| Debt Securities Issued by Corporations
Assets:
Available-for-Sale: Fair Value	794,658	383,113
Fair Value, Measurements, Recurring \| Significant Other Observable Inputs (Level 2) \| Residential - Government Agencies
Assets:
Available-for-Sale: Fair Value	732,828	1,319,042
Fair Value, Measurements, Recurring \| Significant Other Observable Inputs (Level 2) \| Residential - U.S. Government-Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	793,871	2,090,326
Fair Value, Measurements, Recurring \| Significant Other Observable Inputs (Level 2) \| Commercial - Government Agencies - Sponsored Agencies
Assets:
Available-for-Sale: Fair Value	145,667	155,890
Fair Value, Measurements, Recurring \| Significant Other Observable Inputs (Level 2) \| Mortgage-Backed Securities
Assets:
Available-for-Sale: Fair Value	1,672,366	3,565,258
Fair Value, Measurements, Recurring \| Significant Other Unobservable Inputs (Level 3)
Assets:
Available-for-Sale: Fair Value	0	0
Loans Held for Sale	0	0
Mortgage Servicing Rights	717	800
Other Assets	0	0
Derivatives	45,895	41,817
Total Assets Measured at Fair Value on a Recurring Basis	46,612	42,617
Liabilities:
Derivatives	$ 167,967	$ 17,913
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other Liabilities	Other Liabilities
Total Liabilities Measured at Fair Value on a Recurring Basis	$ 167,967	$ 17,913
Fair Value, Measurements, Recurring \| Significant Other Unobservable Inputs (Level 3) \| Debt Securities Issued by the U.S. Treasury and Government Agencies
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring \| Significant Other Unobservable Inputs (Level 3) \| Debt Securities Issued by States and Political Subdivisions
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring \| Significant Other Unobservable Inputs (Level 3) \| Debt Securities Issued by Government-Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring \| Significant Other Unobservable Inputs (Level 3) \| Debt Securities Issued by Corporations
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring \| Significant Other Unobservable Inputs (Level 3) \| Residential - Government Agencies
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring \| Significant Other Unobservable Inputs (Level 3) \| Residential - U.S. Government-Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring \| Significant Other Unobservable Inputs (Level 3) \| Commercial - Government Agencies - Sponsored Agencies
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring \| Significant Other Unobservable Inputs (Level 3) \| Mortgage-Backed Securities
Assets:
Available-for-Sale: Fair Value	$ 0	$ 0

Fair Value of Assets and Liabilities - Changes in Level 3 Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation Calculation Roll Forward
Fair Value, Mortgage Servicing Rights, Beginning Balance	$ 800	$ 958
Fair Value, Mortgage Servicing Rights, Realized and Unrealized Net Gains (Losses) Included in Net Income	$ (83)	$ (158)
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Net Interest Income	Net Interest Income
Fair Value, Mortgage Servicing Rights, Ending Balance	$ 717	$ 800
Fair Value, Mortgage Service Rights, Total Unrealized Net Gains (Losses) Included in Net Income Related to Assets Still Held	0	0
Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Input Reconciliation Roll Forward
Fair Value, Net Derivative Assets and Liabilities, Beginning Balance	23,904	77,880
Fair Value, Net Derivative Assets and Liabilities, Realized and Unrealized Net Gains (Losses) Included in Net Income	$ (871)	$ 8,848
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Net Interest Income	Net Interest Income
Fair Value, Net Derivative Assets and Liabilities, Transfers to Loans Held for Sale	$ (112)	$ (12,634)
Variation margin payments for swap liabilities	(144,993)	(50,190)
Fair Value, Net Derivative Assets and Liabilities, Ending Balance	(122,072)	23,904
Fair Value, Net Derivative Assets and Liabilities,Total Unrealized Net Gains (Losses) Included in Net Income Related to Assets Still Held	$ (871)	$ 8,848

Fair Value of Assets and Liabilities - Summary of the Significant Unobservable Inputs (Details) - Significant Other Unobservable Inputs (Level 3) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Discounted Cash Flow Technique \| Interest Rate Swap Agreements
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net	$ (122,129)	$ 22,820
Discounted Cash Flow Technique \| Mortgage Servicing Rights
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Mortgage Servicing Rights, at Fair Value	28,040	22,251
Pricing Model \| Interest Rate Lock Commitments
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net	$ 58	$ 1,084
Weighted Average Constant Prepayment Rate (as a percent) \| Discounted Cash Flow Technique \| Mortgage Servicing Rights
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Mortgage Servicing Rights, Fair Value Inputs	0.0402	0.1070
Measurement Input, Discount Rate \| Discounted Cash Flow Technique
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Mortgage Servicing Rights, Fair Value Inputs	0.0993	0.0704
Weighted Average Closing Ratio (as a percent) \| Pricing Model \| Interest Rate Lock Commitments
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Fair Value Inputs	0.9286	0.9047
Weighted Average Credit Factor (as a percent) \| Discounted Cash Flow Technique \| Interest Rate Swap Agreements
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Fair Value Inputs	0.0001	0.0014
Maximum \| Discounted Cash Flow Technique \| Mortgage Servicing Rights
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities, Discount Rate	10.63%	11.48%
Maximum \| Measurement Input, Discount Rate \| Discounted Cash Flow Technique
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Mortgage Servicing Rights, Fair Value Inputs	0.1040	0.0708
Maximum \| Weighted Average Closing Ratio (as a percent) \| Pricing Model \| Interest Rate Lock Commitments
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Fair Value Inputs	0.9900	1.0000
Maximum \| Weighted Average Credit Factor (as a percent) \| Discounted Cash Flow Technique \| Interest Rate Swap Agreements
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Fair Value Inputs	0.0049	0.0049
Minimum [Member] \| Discounted Cash Flow Technique \| Mortgage Servicing Rights
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities, Discount Rate	2.81%	6.51%
Minimum [Member] \| Measurement Input, Discount Rate \| Discounted Cash Flow Technique
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Mortgage Servicing Rights, Fair Value Inputs	0.0870	0.0649
Minimum [Member] \| Weighted Average Closing Ratio (as a percent) \| Pricing Model \| Interest Rate Lock Commitments
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Fair Value Inputs	0.8410	0.7540
Minimum [Member] \| Weighted Average Credit Factor (as a percent) \| Discounted Cash Flow Technique \| Interest Rate Swap Agreements
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Fair Value Inputs	0.0000	0.0000

Fair Value of Assets and Liabilities - Schedule of Assets Measured at Fair Value on Nonrecurring Basis (Details) - Significant Other Unobservable Inputs (Level 3) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net Carrying Amount	$ 21,902	$ 21,451
Valuation Allowance		$ (1,829)

Fair Value of Assets and Liabilities - Schedule of Difference between Aggregate Fair Value and Aggregate Unpaid Principal Balance (Details) - Residential mortgage loans held for sale - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Fair Value Option Quantitative Disclosures [Line Items]
Aggregate Fair Value	$ 1,035	$ 26,746
Aggregate Unpaid Principal	1,016	26,309
Aggregate Fair Value Less Aggregate Unpaid Principal	$ 19	$ 437

Fair Value of Assets and Liabilities - Schedule of Carrying Amount, Fair Value, and Fair Value Hierarchy of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financial Instruments – Assets
Held-to-Maturity: Fair Value	$ 4,615,393	$ 4,646,619
Carrying Amount
Financial Instruments – Assets
Held-to-Maturity: Fair Value	5,414,139	4,694,780
Loans	13,371,226	11,921,869
Financial Instruments – Liabilities
Time Deposits	1,705,737	1,000,089
Securities Sold Under Agreements to Repurchase	725,490	450,490
Other Debt	400,000
Fair Value
Financial Instruments – Assets
Held-to-Maturity: Fair Value	4,615,393	4,646,619
Loans	12,386,615	12,094,631
Financial Instruments – Liabilities
Time Deposits	1,679,777	998,134
Securities Sold Under Agreements to Repurchase	718,614	469,293
Other Debt	402,877
Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) \| Fair Value
Financial Instruments – Assets
Held-to-Maturity: Fair Value	113,417	131,139
Loans	0	0
Financial Instruments – Liabilities
Time Deposits	0	0
Securities Sold Under Agreements to Repurchase	0	0
Other Debt	0
Significant Other Observable Inputs (Level 2) \| Fair Value
Financial Instruments – Assets
Held-to-Maturity: Fair Value	4,501,976	4,515,480
Loans	0	0
Financial Instruments – Liabilities
Time Deposits	1,679,777	998,134
Securities Sold Under Agreements to Repurchase	718,614	469,293
Other Debt	402,877
Significant Other Unobservable Inputs (Level 3) \| Fair Value
Financial Instruments – Assets
Held-to-Maturity: Fair Value	0	0
Loans	12,386,615	12,094,631
Financial Instruments – Liabilities
Time Deposits	0	0
Securities Sold Under Agreements to Repurchase	0	$ 0
Other Debt	$ 0

Revenue Recognition - Summary of Noninterest Income Segregated by Revenue Streams In-Scope and Out-of-Scope of Topic 606 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Service Charges on Deposit Accounts	$ 29,620	$ 25,564	$ 24,910
Fees, Exchange, and Other Service Charges	54,914	55,457	47,056
Annuity and Insurance	3,782	3,224	3,362
Other	15,585	19,589	30,434
Noninterest Income	157,541	171,353	184,409
Accounting Standards Update 2014-09
Disaggregation of Revenue [Line Items]
Noninterest Income	157,541	171,353	184,409
Accounting Standards Update 2014-09 \| Noninterest Income In Scope of Topic 606
Disaggregation of Revenue [Line Items]
Trust and Asset Management	43,803	46,068	43,456
Service Charges on Deposit Accounts	12,975	12,181	11,715
Fees, Exchange, and Other Service Charges	43,139	41,962	36,005
Annuity and Insurance	3,710	3,130	3,249
Other	9,034	8,684	8,626
Noninterest Income	112,661	112,025	103,051
Accounting Standards Update 2014-09 \| Noninterest Income Out of Scope of Topic 606
Disaggregation of Revenue [Line Items]
Noninterest Income	$ 44,880	$ 59,328	$ 81,358

Leases - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease, existence of option to extend		true
Operating lease, option to extend		through 2052
Sublease, existence of option to extend		true
Sublease, option to extend		through 2033
Rental income from operating leases, including subleases	$ 9.5	$ 9.8	$ 10.3
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Net Occupancy	Net Occupancy	Net Occupancy

Leases - Schedule of Right-of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Lease Right-of-Use Assets
Operating Lease Right-of-Use Assets	$ 92,307	$ 95,621
Finance lease right-of-use assets	$ 2,160	$ 2,232
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets	Other Assets
Total Lease Right-of-Use Assets	$ 94,467	$ 97,853
Lease Liabilities
Operating Lease Liabilities	100,526	103,210
Finance Lease Obligations	$ 10,294	$ 10,391
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Debt	Other Debt
Total Lease Liabilities	$ 110,820	$ 113,601

Leases - Schedule of Lease Cost and Other Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Weighted-Average Remaining Lease Term
Operating leases	15 years 4 months 24 days	16 years 4 months 24 days
Finance leases	30 years	31 years
Weighted-Average Discount Rate
Operating leases	3.56%	3.57%
Finance leases	7.04%	7.04%
Lease Costs
Operating lease cost	$ 11,843	$ 11,493
Variable lease cost	3,305	2,954
Short-term lease cost	328	407
Interest on lease liabilities 1	728	735
Amortization of right-of-use assets	72	72
Sublease income	(7,147)	(7,452)
Net Lease Costs	9,129	8,209
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	11,502	13,741
Operating cash flows from finance leases	728	735
Financing cash flows from finance leases	97	90
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 10,804	$ 12,207

Leases - Future Minimum Payments for Finance Leases and Operating Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Finance Leases
2023	$ 825
2024	825
2025	825
2026	825
2027	825
Thereafter	20,630
Total Future Minimum Lease Payments	24,755
Amounts Representing Interest	(14,461)
Finance Lease Obligations	10,294	$ 10,391
Operating Leases
2023	11,365
2024	10,538
2025	10,113
2026	8,816
2027	7,732
Thereafter	77,571
Total Future Minimum Lease Payments	126,135
Amounts Representing Interest	(25,609)
Operating Lease Liabilities	$ 100,526	$ 103,210

Leases - Future Minimum Rental Income under Operating Leases Including Subleases (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Leases [Abstract]
2023	$ 4,924
2024	3,241
2025	2,342
2026	1,651
2027	837
Thereafter	3,047
Total	$ 16,042

Bank of Hawaii Corporation Financial Statements - Schedule of Condensed Statements of Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Condensed Financial Statements Captions [Line Items]
Investment Securities Gains (Losses), Net	$ (6,111)	$ (1,297)	$ 9,932
Noninterest Expense
Total Noninterest Expense	415,265	393,589	373,807
Income Before Income Tax Benefit and Equity in Undistributed Income of Subsidiaries	290,634	325,554	189,124
Income Tax Benefit (Expense)	(64,830)	(72,182)	(35,320)
Net Income	225,804	253,372	153,804
Comprehensive Income (Loss)	(142,472)	179,168	192,738
Parent Company
Condensed Financial Statements Captions [Line Items]
Dividends from Bank of Hawai‘i	182,000	62,000	134,000
Investment Securities Gains (Losses), Net	(1,195)	(948)	13,336
Other Income and Interest on Investment	6	6	154
Total Income	180,811	61,058	147,490
Noninterest Expense
Intercompany Salaries and Services	1,121	764	758
Other Expenses	2,240	1,787	1,864
Total Noninterest Expense	3,361	2,551	2,622
Income Before Income Tax Benefit and Equity in Undistributed Income of Subsidiaries	177,450	58,507	144,868
Income Tax Benefit (Expense)	2,036	2,131	(2,395)
Equity in Undistributed Income of Subsidiaries	46,318	192,734	11,331
Net Income	225,804	253,372	153,804
Comprehensive Income (Loss)	$ (142,472)	$ 179,168	$ 192,738

Bank of Hawaii Corporation Financial Statements - Schedule of Condensed Statements of Condition (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets
Investment Securities Held-to-Maturity	$ 5,414,139	$ 4,694,780
Goodwill	31,517	31,517
Other Assets	573,988	384,727
Total Assets	23,606,877	22,784,941	$ 20,603,651
Liabilities
Other Liabilities	394,083	196,237
Total Liabilities	22,289,882	21,173,330
Common Shareholders’ Equity	1,316,995	1,611,611	$ 1,374,507	$ 1,286,832
Total Liabilities and Shareholders’ Equity	23,606,877	22,784,941
Parent Company
Assets
Cash with Bank of Hawai‘i	19,147	6,376
Investment Securities Held-to-Maturity	2,500	2,500
Goodwill	14,129	14,129
Other Assets	11,596	14,130
Equity in Net Assets of Subsidiaries	1,279,736	1,586,473
Total Assets	1,327,108	1,623,608
Liabilities
Income Taxes Payable	349	38
Other Liabilities	9,764	11,959
Total Liabilities	10,113	11,997
Common Shareholders’ Equity	1,316,995	1,611,611
Total Liabilities and Shareholders’ Equity	$ 1,327,108	$ 1,623,608

Bank of Hawaii Corporation Financial Statements - Schedule of Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Activities
Net Income	$ 225,804	$ 253,372	$ 153,804
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Share-Based Compensation	16,066	13,267	7,578
Net (Gains) Losses on Investment Securities	6,111	1,297	(9,932)
Net Change in Other Assets and Other Liabilities	13,608	27,989	(127,934)
Net Cash Provided by Operating Activities	332,960	377,151	146,416
Investing Activities
Purchases	(91,229)	(2,676,376)	(1,661,180)
Net Cash Used in Investing Activities	(1,253,418)	(2,423,334)	(2,373,282)
Financing Activities
Proceeds from Issuance of Common Stock	6,797	13,611	9,389
Proceeds from Issuance of Preferred Stock		175,487
Repurchase of Common Stock	(55,063)	(31,258)	(18,006)
Cash Dividends Paid on Common Stock	(112,557)	(110,633)	(107,434)
Cash Dividends Paid on Preferred Stock	(7,877)	(2,975)
Net Cash Provided by Financing Activities	761,791	1,992,529	2,282,296
Net Change in Cash and Cash Equivalents	(158,667)	(53,654)	55,430
Cash and Cash Equivalents at Beginning of Period	560,434	614,088	558,658
Cash and Cash Equivalents at End of Period	401,767	560,434	614,088
Parent Company
Operating Activities
Net Income	225,804	253,372	153,804
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Share-Based Compensation	847	779	795
Net (Gains) Losses on Investment Securities	1,195	948	(13,336)
Equity in Undistributed Income of Subsidiaries	(46,318)	(192,734)	(11,331)
Net Change in Other Assets and Other Liabilities	1,138	(977)	(68)
Net Cash Provided by Operating Activities	182,666	61,388	129,864
Investing Activities
Capital Contributions to the Bank of Hawai‘i		(165,000)
Proceeds from (Expenses related to) Sales of Investment Securities	(1,195)	(948)	18,336
Purchases			(2,501)
Net Cash Used in Investing Activities	(1,195)	(165,948)	15,835
Financing Activities
Proceeds from Issuance of Common Stock	6,797	13,611	9,389
Proceeds from Issuance of Preferred Stock		175,487
Repurchase of Common Stock	(55,063)	(31,258)	(18,006)
Cash Dividends Paid on Common Stock	(112,557)	(110,633)	(107,434)
Cash Dividends Paid on Preferred Stock	(7,877)	(2,975)
Net Cash Provided by Financing Activities	(168,700)	44,232	(116,051)
Net Change in Cash and Cash Equivalents	12,771	(60,328)	29,648
Cash and Cash Equivalents at Beginning of Period	6,376	66,704	37,056
Cash and Cash Equivalents at End of Period	$ 19,147	$ 6,376	$ 66,704