Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] 2029 Qualified Affordable Housing Project Investments Commitment Payments Year Three Qualified Affordable Housing Project Investments, Commitment Payments, Year Three Statistical Measurement [Domain] Statistical Measurement [Domain] Forward Swap Forward Swap [Member] Forward Swap Interest and Fees on Loans and Leases Interest and Fees on Loans and Leases [Member] Interest and fees on loans and leases. Schedule Of Trading Securities And Other Trading Assets [Line Items] Debt and Equity Securities, FV-NI [Line Items] Available-for-Sale: Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss Award Timing Predetermined Award Timing Predetermined [Flag] Visa Class B Restricted Securities Visa Class B Restricted Securities [Member] Visa Class B Restricted Securities [Member] Amortization Expense in Provision for Income Taxes Investment Program, Proportional Amortization Method, Applied, Amortization Expense Entity File Number Entity File Number Capital Surplus Additional Paid-in Capital [Member] Interest Rate Swap Interest Rate Swap Agreements Interest Rate Swap [Member] Bank-Owned Life Insurance Bank Owned Life Insurance Tabular List, Table Tabular List [Table Text Block] Weighted-Average Discount Rate Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Discount Rate Derivative Instruments by Hedge Designation [Table] Derivative Instruments by Hedge Designation [Table] Derivative instruments by hedge designation Accounting Standards Pending Adoption New Accounting Pronouncements, Policy [Policy Text Block] Non-Accrual Loans without a Related ACL Financing Receivable, Excluding Accrued Interest, Nonaccrual, No Allowance Schedule of Carrying Amount, Fair Value, and Fair Value Hierarchy of Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Write down from impairment of LIHTC Investments Investment Program, Proportional Amortization Method, Elected, Impairment Loss Available-for-Sale: Gross Unrealized Losses Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Measurement Basis Measurement Basis [Axis] Basic Earnings Per Common Share (in USD per share) Basic (in USD per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Liabilities: Liabilities, Fair Value Disclosure [Abstract] Affordable Housing Tax Credit Investments, Unfunded Commitment [Abstract] Affordable Housing Tax Credit Investments Unfunded Commitment [Abstract] Affordable Housing Tax Credit Investments, Unfunded Commitment [Abstract] Pay Fixed/Receive Variable Swaps Pay Fixed Or Receive Variable Swap [Member] Represents the pay fixed or receive variable interest rate swap agreements. Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Cash Dividends Paid on Preferred Stock Payments of Ordinary Dividends, Preferred Stock and Preference Stock Financing Receivable Nonaccrual [Table] Financing Receivable, Nonaccrual [Table] Recoveries on Loans and Leases Previously Charged-Off Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery Selected Business Segment Financial Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Derivatives terminated Number Of Derivatives Terminated Number Of Derivatives Terminated Held-to-Maturity: Gross Unrealized Gains Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain Benefit Plan Contributions Payment for Pension and Other Postretirement Benefits Adjustment to Compensation, Amount Adjustment to Compensation Amount Total Collateralized Mortgage Obligations Collateralized Mortgage Obligations [Member] Share-Based Compensation Share-Based Payment Arrangement, Noncash Expense Annuity and Insurance Insurance Commissions and Fees Loans and Leases Charged-Off Total Loans and Leases Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Data Processing Communications and Information Technology Net asset positions, aggregate fair value Derivative Net Asset Position Aggregate Fair Value Derivative Net Asset Position Aggregate Fair Value. Employee Stock Option Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Credit Commitments Credit Commitments [Table Text Block] Credit Commitments. Commercial and Industrial Commercial And Industrial [Member] Class of financing receivables related to commercial and industrial financing receivables. Net Loans and Leases Financing Receivable, after Allowance for Credit Loss Summary of Carrying Value Under the Fair Value Measurement Method Schedule of Servicing Assets at Fair Value [Table Text Block] Cash Paid for Income Taxes Income Taxes Paid Taxable Interest Income, Securities, Operating, Taxable Schedule Of Accounts Notes Loans And Financing Receivable [Table] Accounts and Financing Receivables [Table] Fair value of investment securities pledged for repurchase agreements with private institutions Securities Sold under Agreements to Repurchase, Fair Value of Collateral Cash Dividends Declared Common Stock (per share) Dividends, Common Stock, Cash Total Shareholders’ Equity Balance at Beginning of Period Balance at End of Period Equity, Attributable to Parent Derivative Instruments Gain Loss [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Net Unrealized (Losses) Gains Arising During the Period, net Other Comprehensive Loss Before Reclassifications OCI, before Reclassifications, Net of Tax, Attributable to Parent Debt Securities Available For Sale [Table] Debt Securities, Available-for-Sale [Table] Insider Trading Policies and Procedures [Line Items] Amortized Cost, Total Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date Common Stock, authorized (in shares) Common Stock, Shares Authorized Hedging Designation [Domain] Hedging Designation [Domain] Financial Instruments - Assets Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Loans Held for Sale Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance Assets Sold Under Agreements To Repurchase [Line Items] Assets Sold under Agreements to Repurchase [Line Items] Total Liabilities and Shareholders’ Equity Liabilities and Equity 2026 Qualified Affordable Housing Project Investments Commitment Payments Remainder of Fiscal Year Qualified Affordable Housing Project Investments, Commitment Payments, Remainder of Fiscal Year Liability derivatives Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value Defined Benefit Plans, Net Defined Benefit Plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Derivative Instruments Gain Loss By Hedging Relationship By Income Statement Location By Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Table] Summary of Carrying Value Under the Amortization Method Servicing Asset at Amortized Cost [Table Text Block] Reclassification Out of Accumulated Other Comprehensive Income [Line Items] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Cover [Abstract] Cover [Abstract] Reclassification from AOCI, net Amounts Reclassified from Accumulated Other Comprehensive Income Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Offsetting Derivative Assets [Abstract] Offsetting Derivative Assets [Abstract] Discount Rate Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact In Discount Rate [Abstract] -- None. No documentation exists for this element. -- Maximum Maximum [Member] Held-to-Maturity: Amortized Cost Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss Transfer from Loans to Foreclosed Real Estate Real Estate Owned, Transfer to Real Estate Owned Held-to-Maturity: Mortgage-Backed Securities: Amortized Cost Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, without Single Maturity Date Retirement Benefits Payable Liability, Defined Benefit Plan Accounting Policies [Abstract] Accounting Policies [Abstract] Gross Amounts Offset in the Statements of Condition Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Asset Offset Total Fair Value Debt Securities, Available-for-Sale, Unrealized Loss Position Forward Commitments Forward Contracts [Member] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Treasury Stock, Common Treasury Stock, Common [Member] Current fiscal year Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Net Cash Settlements Net Cash Settlements [Member] Net Cash Settlements Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Schedule Of Financing Receivable Recorded Investment Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Debt Securities Issued by Government Agencies US Government Agencies Debt Securities [Member] Operating Lease Liabilities Operating Lease, Liability Depository Shares, Each Representing 1/40th Interest in a Share of 8.000% Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series B Preferred Series B Stock Series B Preferred Stock [Member] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Past Due 90 Days or More Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Liabilities Liabilities [Abstract] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Cash and Cash Equivalents Interest Income, Deposits with Financial Institutions Weighted-Average Months of Term Extension Financing Receivable, Modified, Weighted Average Term Increase from Modification Depreciation and Amortization Depreciation, Depletion and Amortization, Nonproduction Income Before Provision for Income Taxes Income (Loss) Before Provision for Income Taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Revolving Loans Converted to Term Loans Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan Subsequent default receivables Financing Receivable, Excluding Accrued Interest, Modified, Subsequent Default Net Loans and Leases Charged-Off Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) Automobile Automobile Loan [Member] Held-to-Maturity: Mortgage-Backed Securities: Fair Value Debt Securities, Held-to-Maturity, Maturity, without Single Maturity Date, Fair Value Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Operating Segments Operating Segments [Member] Threshold period for loans and leases to be past due Financing Receivable, Threshold Period Past Due Fair value hedges [line items] Derivative Instruments, Fair Value Hedges [Line items] Derivative instruments, fair value hedges. Two years before latest fiscal year Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Gross charge-offs, five fiscal years before current year Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff Expected Payments for Unfunded Affordable Housing Commitments Activity in Affordable Housing Program Obligation [Table Text Block] Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Total Interest Expense Interest Expense, Operating Comprehensive Income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Reclassification Out Of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Name Measure Name Commercial Letters of Credit Letter of Credit [Member] Interest Income on Investment Securities Available-for-Sale Interest Income On Investment Securities Available-for-sale [Member] Interest income on investment securities available-for-sale. Other Comprehensive (Loss) Income, before tax Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Net Change in Deposits Increase (Decrease) in Deposits Proceeds from Prepayments and Maturities Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Financing Receivable Nonaccrual Status [Line Items] Financing Receivable, Nonaccrual [Line Items] Interest and Fees on Loans and Leases Interest And Fee Income For Loans And Leases The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans, (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases, (3) amortization of deferred leasing fees and deferred lease origination costs, and (4) amortization of deferred loan origination fees and costs. Document Fiscal Period Focus Document Fiscal Period Focus Income on Investment Securities Interest and Dividend Income, Securities, by Classification [Abstract] Derivatives Fair Value [Line Items] Derivatives, Fair Value [Line Items] Schedule of Difference between Aggregate Fair Value and Aggregate Unpaid Principal Balance Fair Value Option, Disclosures [Table Text Block] Award Timing Method Award Timing Method [Text Block] Non-Accrual Total Non-Accrual Loans Financing Receivable, Excluding Accrued Interest, Nonaccrual Award Type Award Type [Axis] Components of Other Comprehensive Income Comprehensive Income (Loss) [Table Text Block] Total Assets Total Assets Assets Investing Activities Cash Provided by (Used in) Investing Activity, Continuing Operation [Abstract] Other Consumer, Other [Member] Trading Symbol Trading Symbol Financing Receivable, Credit Quality Indicator [Line Items] Financing Receivable, Credit Quality Indicator [Line Items] Non-Taxable Interest Income, Securities, Operating, Tax Exempt Other Debt Interest Expense, Long-Term Debt Federal and state effective tax rate used for segment reporting Federal And State Effective Tax Rate Used For Segment Reporting The combined Federal and State Effective Tax Rate Used for Segment Reporting purposes. Allowance for Credit Losses: Financing Receivable, Allowance for Credit Loss [Roll Forward] Entity Address, City or Town Entity Address, City or Town Operating Activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Net Unrealized Losses on Investment Securities AOCI, Accumulated Gain (Loss), Debt Securities, Parent [Member] AOCI, Accumulated Gain (Loss), Debt Securities, Parent Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Tax Credits and Other Tax Benefits Recognized Affordable Housing Tax Credit Proportional Amortization Method Affordable Housing Tax Credits, Proportional Amortization Method. Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Income Statement Location Statement of Income Location, Balance [Domain] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Amortization of Unrealized Holding Losses on Investment Securities Held-to-Maturity Amortization of Unrealized Holding Losses on Investment Securities Held-to-Maturity [Member] Amortization of Unrealized Holding Losses on Investment Securities Held-to-Maturity Amortization of Deferred Loan and Lease Costs (Fees), Net Amortization of Deferred Loan Origination Fees, Net Assets: Assets, Fair Value Disclosure [Abstract] Earnings Per Common Share: Net Earnings Per Share Basic And Diluted [Abstract] Net earnings per share basic and diluted. Due After One Year Through Five Years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost Entity Emerging Growth Company Entity Emerging Growth Company Netting Adjustments per Master Netting Arrangements Derivative Asset, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset Held-to-maturity, fair value Investment Securities Held-to-Maturity Held-to-Maturity: Fair Value Debt Securities, Held-to-Maturity, Fair Value Dividends Declared Per Common Share (in USD per share) Common Stock, Dividends, Per Share, Declared Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Right-of-Use Assets Acquired through Operating Leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Fair Value of Collateral Pledged/ Received Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset Schedule Of Available For Sale Securities [Line Items] Debt Securities, Available-for-Sale [Line Items] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Net gains (losses) recognized in the statements of income Derivative, Gain (Loss) on Derivative, Net Loan modifications made to borrowers experiencing financial difficulty Financing Receivable, Excluding Accrued Interest, Modified, Accumulated Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Total Noninterest Income Noninterest Income Noninterest Income Common Stock, outstanding (in shares) Common Stock, Shares, Outstanding Residential Mortgage Residential Mortgage [Member] Held-to-Maturity: Gross Unrealized Losses Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss PEO PEO [Member] Noninterest Expense Noninterest Expense [Abstract] Loss on derivative Derivative, Loss on Derivative Tax Credits and Other Tax Benefits Recognized Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, before Amortization Expense Analysis of the Contractual Maturities of Investment Securities Investments Classified by Contractual Maturity Date [Table Text Block] Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Interest Income Investment Income, Interest % of Total Class of Loans and Leases Finance Receivable Excluding Accrued Interest Percentage of Class of Loans and Leases Finance Receivable Excluding Accrued Interest Percentage of Class of Loans and Leases Due in One Year or Less Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Available for sale debt securities positions Debt Securities Available For Sale Credit Loss Impairment Unrealized Loss Position Number Of Positions Debt securities available for sale credit loss impairment unrealized loss position number of positions. Residential - Government Agencies or Sponsored Enterprises Residential - Government Agencies or Sponsored Agencies Residential - Government Agencies or Sponsored Enterprises [Member] Residential - Government Agencies or Sponsored Enterprises Securities Sold under Agreements to Repurchase [Abstract] Securities Sold under Agreements to Repurchase [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Standby and Commercial Letters of Credit Standby And Commercial Letteres Of Credit [Member] Standby and Commercial Letteres of Credit [Member] Fair Value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling Maturity, Fair Value [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Time Time Deposits Retained Earnings Retained Earnings [Member] Weighted-Average Interest Rate Reduction Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Cash and Cash Equivalents at Beginning of Period Cash and Cash Equivalents at End of Period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Derivative asset Derivatives Derivative Asset Provision for Income Taxes Provision (Benefit) for Income Taxes Income Tax Expense (Benefit) 12 Months or Longer, Fair Value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Net Unrealized (Losses) Gains Arising During the Period, before tax OCI, before Reclassifications, before Tax, Attributable to Parent Maturity 1 To 3 Years Maturity1 To3 Years [Member] Maturity 1 To 3 Years [Member] Schedule of Loan and Lease Portfolio Schedule Of Aggregate Carrying Amount Of Loans And Leases [Table Text Block] Tabular disclosure of the aggregate carrying amount of all categories of loans and leases held in portfolio, net of unearned income, net of deferred loan fees or costs, and any direct principal charge-offs. Other Assets Other Assets Preferred Stock, issued (in shares) Preferred Stock, Shares Issued Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Designated as Hedging Instruments Derivatives designated as hedging instruments Designated as Hedging Instrument [Member] Schedule Of Financing Receivable Troubled Debt Restructurings [Table] Financing Receivable, Modified [Table] Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Axis] Investment Securities Available-for-Sale: Debt Securities, Available-for-Sale [Abstract] Payment Delay and Term Extension Payment Delay and Term Extension [Member] Payment delay and term extension. Net Income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Total Liabilities Measured at Fair Value on a Recurring Basis Liabilities, Fair Value Disclosure Notional value Notional Amount Derivative, Notional Amount Revolving Loans Financing Receivable, Excluding Accrued Interest, Revolving Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] City Area Code City Area Code Schedule of Activity in Allowance by Portfolio Segment Financing Receivable, Allowance for Credit Loss [Table Text Block] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Commitments and Contingencies [Table] Commitments and Contingencies [Table] Commitments and contingencies. All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Net Exposure Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, after Offset and Deduction Weighted-Average Note Rate Assumption For Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Note Rate The weighted average note rate of securitized assets. This is used as a key input in measuring the fair value of assets or liabilities that relate to a transferor's continuing involvement, if any, as of the date of the latest statement of financial position presented. Other Noninterest Income, Other Operating Income Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Schedule Of Trading Securities And Other Trading Assets [Table] Debt Securities, Trading, and Equity Securities, FV-NI [Table] Loans and Leases and Allowance for Loan and Lease Losses [Abstract] Loans And Leases And Allowance For Loan And Lease Losses [Abstract] Loans and Leases and Allowance for Loan and Lease Losses. Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Net Cash Provided by Operating Activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Accrued Interest Receivable Accrued interest receivable Interest Receivable Credit Commitments Fair Value Disclosure, off-Balance-Sheet Risks, Face Amount, Liability Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Available-for-Sale Total Investment Securities Available-for-Sale Available-for-Sale: Fair Value Debt Securities, Available-for-Sale, Excluding Accrued Interest Servicing Assets At Fair Value [Table] Servicing Asset at Fair Value, Activity [Table] Preferred Stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Net Interest Income Net Interest Income (Expense) Interest Income (Expense), Operating Other Liabilities Other Liabilities Goodwill Goodwill Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Standby and commercial letters of credit remaining term Standby And Commercial Letters Of Credit Remaining Term Represents the remaining term of standby and commercial letters of credit. Treasury Stock Treasury Stock, Common And Preferred [Member] Treasury stock common and preferred. Schedule of Key Data and Assumptions Used in Estimating the Fair Value Schedule of Assumptions for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Table Text Block] Non-Accrual Loans with a Related ACL Financing Receivable, Excluding Accrued Interest, Nonaccrual, with Allowance Financing Receivable, Excluding Accrued Interest, Nonaccrual, with Allowance Gross Amounts Recognized in the Statements of Condition Derivative Liability, Subject to Master Netting Arrangement, before Offset Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Equity Components Equity Components [Axis] Three years before latest fiscal year Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Residential - Government Agencies or Sponsored Agencies Residential Mortgage Backed Securities - Government Agencies or Sponsored Enterprises [Member] Residential Mortgage Backed Securities - Government Agencies or Sponsored Enterprises Standby Letters of Credit Standby Letters of Credit [Member] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Fair Value, Total Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value Mortgage Servicing Rights Transfers and Servicing of Financial Assets [Text Block] Mortgage Servicing Rights Mortgage Servicing Rights [Member] The details pertaining to mortgage servicing rights, both those carried at fair value and those carried at amortized cost. Mortgage servicing rights consist of an asset representing net future revenues from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements. Commercial - Government Agencies or Sponsored Enterprises Commercial Mortgage Backed Securities Issued By U S Government Sponsored Enterprises [Member] Commercial Mortgage Backed Securities Issued By U S Government Sponsored Enterprises Supplemental Information Supplemental Cash Flow Information [Abstract] Commercial Mortgage Commercial Real Estate [Member] Carrying value of investment securities pledged Carrying Value Of Investment Securities Pledged The carrying value, as of the date of each statement of financial position presented, of investment securities, classified as available for sale or held to maturity, which are owned but transferred to serve as collateral to secure deposits of government entities and securities sold under agreements to repurchase, and payment of the related debt obligation, primarily a secured borrowing or repurchase agreement. Other Performance Measure, Amount Other Performance Measure, Amount Debt Securities Issued by the U.S. Treasury and Government Agencies US Treasury and Government [Member] Entity Address, State or Province Entity Address, State or Province Classified Substandard [Member] Total Interest Income Interest and Dividend Income, Operating Financial Asset, Aging Financial Asset, Aging [Domain] Special Mention Special Mention [Member] Mortgage Servicing Rights Servicing Asset Loans Loans Receivable, Fair Value Disclosure Derivative Instrument Derivative Instrument [Axis] Individual: Individual [Axis] Financial Instruments - Liabilities Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Commercial Banking Commercial Banking [Member] This element represents selected financial information of the commercial banking business segment. Cash Dividends Paid on Common Stock Payments of Ordinary Dividends, Common Stock Capital Surplus Additional Paid in Capital, Common Stock Entities [Table] Entities [Table] Schedule of Aging Analysis of Loan Modifications Made to Borrowers Experiencing Financial Difficulty Financing Receivable, Modified, Past Due [Table Text Block] Net Cash Used in Investing Activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Balance at Beginning of Period Balance at End of Period Servicing Asset at Amortized Cost Commercial Mortgage Commercial Mortgage [Member] Class of financing receivables related to commercial mortgage financing receivables. Cash Paid for Interest Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Servicing Assets At Fair Value [Line Items] Servicing Assets at Fair Value [Line Items] Available-for-sale Securities: Amortized Cost Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Amortized Cost Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Operating Lease Right-of-Use Assets Operating Lease, Right-of-Use Asset Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Repayments of Long-Term Debt Repayments of Long-Term Debt Entity Interactive Data Current Entity Interactive Data Current Carrying Amount Reported Value Measurement [Member] Schedule of Amortized Cost, Gross Unrealized Gains and Losses, and Fair Value of Investment Securities Schedule Of Available For Sale Securities And Held To Maturity [Table Text Block] This item represents the entire disclosure related to reconciling the amortized cost basis and aggregate fair value of the entity's available-for-sale and held-to-maturity investment securities. Thereafter Qualified Affordable Housing Project Investments Commitment Payments After Year Four Qualified Affordable Housing Project Investments, Commitment Payments, After Year Four Available-for-Sale Interest Income, Debt Securities, Available-for-Sale, Operating Financing Receivable Modifications [Line Items] Financing Receivable, Modified [Line Items] Home Equity Home Equity Line of Credit [Member] Interest Income Interest and Dividend Income, Operating [Abstract] Trust and Asset Management Feeand Commission Fiduciaryand Trust Activities Income from services rendered by trust departments or by any consolidated subsidiaries acting in a fiduciary capacity, including fees earned for (1) acting as an agent for fiduciary placement and loans and (2) custody or investment advisory services when such fees are not separately billed to the customer. This item excludes commissions and fees received for the accumulation or disbursement of funds deposited to Individual Retirement or Keogh plan accounts when such are not handled by the reporting entity's trust department. Total Noninterest Expense Noninterest Expense Business Segments Segment Reporting Disclosure [Text Block] Fair Value of Mortgage Servicing Rights Accounted for Under the Amortization Method Fair Value Of Mortgage Servicing Rights Accounted For Under Amortization Method [Abstract] Represents the fair value of mortgage servicing rights at the beginning and ending of the period accounted for under the amortization method. Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Derivatives not designated as hedging instruments Not Designated as Hedging Instrument [Member] Payment Delay Payment Deferral Payment Deferral [Member] Deposits Interest Expense, Deposits Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Noninterest Income Noninterest Income [Abstract] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Accumulated Other Comprehensive Income Comprehensive Income (Loss) Note [Text Block] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Equity Compensation Plan Common Stock Repurchases Stock Redeemed or Called During Period, Value Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities [Table] Schedule of Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets [Table] Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Securities Sold Under Agreements to Repurchase Repurchase Agreements, Resale Agreements, Securities Borrowed, and Securities Loaned Disclosure [Text Block] Decrease in fair value from 50 bps adverse change Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact From50 Basis Points Adverse Change In Discount Rate The hypothetical financial impact of a 50 basis points adverse change of the discount rate on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) as of the balance sheet date. Entity Central Index Key Entity Central Index Key Maturity After 3 Years Maturity After3 Years [Member] Maturity After 3 Years [Member] PEO Name PEO Name Effective Yield Method Effective Yield Methods [Abstract] Effective yield Methods Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Service Charges on Deposit Accounts Service Charges On Deposit Accounts Includes amounts charged depositors for: (1) maintenance of their accounts (maintenance charges); (2) failure to maintain specified minimum balances on account; (3) exceeding the number of checks or transactions allowed to be processed in a given period; (4) checks drawn on no minimum balance deposit accounts; (5) withdrawals from non-transaction deposit accounts; (6) closing savings accounts before a specified minimum period of time has elapsed; (7) accounts which have remained inactive for extended periods of time or which have become dormant; (8) checks drawn against insufficient funds that the bank assesses regardless of whether it decides to pay, return or hold the check; (9) issuing stop payment orders; (10) certifying checks; (11) accumulating or disbursing funds deposited in IRAs or Keogh Plan accounts when not handled by the bank's trust department; and (12) penalties assessed on the early withdrawal of time deposits. Excludes amounts charged depositors for use of automated teller machines or remote service units. Schedule of Recorded Investment in Loans and Leases by Class and Credit Quality Indicator Financing Receivable Credit Quality Indicators [Table Text Block] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Total Unfunded Commitments Investment Program, Proportional Amortization Method, Elected, Commitment Due After One Year Through Five Years Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after One through Five Years Noninterest-Bearing Demand Noninterest-Bearing Deposit Liabilities Credit Commitments [Line Items] Credit Commitments [Line Items] Credit Commitments. Arrangement Duration Trading Arrangement Duration Schedule Of Segment Reporting Information By Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Beginning of Period End of Period Servicing Asset at Amortized Cost, Fair Value Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Fair Value Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Fair Value, Rolling Maturity [Abstract] Segments Segments [Axis] Derivative Financial Instruments, their Fair Values, and Balance Sheet Location Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Lease Financing Lease Financing [Member] Lease financing. Local Phone Number Local Phone Number Class of Stock Class of Stock [Domain] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Non-Accrual Non-Accural [Member] Non-Accural [Member] Cumulative Amount of Fair Value Hedging Adjustment Included In the Carrying Amount of the Hedged Assets Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) Fair Value Option Quantitative Disclosures [Table] Fair Value Option, Disclosures [Table] Assets Assets [Abstract] Credit Facility Credit Facility [Axis] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Statement of Financial Position Location, Balance [Axis] Statement of Financial Position Location, Balance [Axis] Due After One Year Through Five Years Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Fair Value of Assets and Liabilities Fair Value Disclosures [Text Block] Credit Facility Credit Facility [Domain] Shareholders’ Equity Equity, Attributable to Parent [Abstract] Investment Securities Held-to-Maturity: Proceeds from Sale and Maturity of Held-to-Maturity Securities [Abstract] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Servicing Rights that Resulted From Asset Transfers Servicing Asset at Amortized Cost, Additions Entity Address, Address Line One Entity Address, Address Line One Schedule of Amortized Cost Basis and Financial Effect of Loan Modifications to Borrowers Experiencing Financial Difficulty Financing Receivable, Modified [Table Text Block] Assets secured for standby letters of credit Assets Secured For Standby Letters Of Credit Represents the value of assets secured for the standby letters of credit. Investment Securities, Available-for-Sale Investment Securities, Available-for-Sale [Member] Investment securities, available-for-sale. Investment Securities-Held-to-Maturity AOCI, Accumulated Gain (Loss), Debt Securities, Held-to-Maturity, Parent [Member] AOCI, accumulated gain (loss), debt securities, held-to-maturity. Common Stock Repurchased Under Share Repurchase Program Treasury Stock, Value, Acquired, Cost Method Accum. Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Credit Commitments [Table] Credit Commitments [Table] Credit Commitments. 30 - 59 Days Past Due Financial Asset, 30 to 59 Days Past Due [Member] Available-for-Sale: Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] Preferred Stock Dividends Preferred Stock Dividends Preferred stock dividends. Gross charge-offs, Revolving loans converted to term loans Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Deferred derivative loss Deferred Derivative Loss Deferred Derivative Loss Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Gross Amounts Recognized in the Statements of Condition Derivative Asset, Subject to Master Netting Arrangement, before Offset Held-to-Maturity Interest Income, Debt Securities, Held-to-Maturity Fair Value as of Grant Date Award Grant Date Fair Value Entity Registrant Name Entity Registrant Name Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Due in One Year or Less Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling within One Year Four years before latest fiscal year Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Salaries and Benefits Labor and Related Expense Servicing Assets At Amortized Value [Table] Servicing Asset at Amortized Cost [Table] Dilutive Effect of Equity Based Awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Document Quarterly Report Document Quarterly Report Less Than 12 Months, Fair Value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Total Assets Measured at Fair Value on a Recurring Basis Assets, Fair Value Disclosure Provision for Credit Losses Provision for (Recapture of) Credit Losses Provision for Loan, Lease, and Other Losses Bank-Owned Life Insurance Bank Owned Life Insurance Income Deposits Deposits [Abstract] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Schedule of Non-Accrual Loans and Leases Financing Receivable, Nonaccrual [Table Text Block] Fair Values Derivatives Balance Sheet Location By Derivative Contract Type By Hedging Designation [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Debt Securities Issued by U.S. Government-Sponsored Enterprises US Government-sponsored Enterprises Debt Securities [Member] Balance at Beginning of Period Balance at End of Period Mortgage Servicing Rights Servicing Asset at Fair Value, Amount Amortization and Accretion of Premiums/Discounts on Investment Securities, Net Accretion (Amortization) of Discounts and Premiums, Investments Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Makewhole Agreements Makewhole Agreements [Member] Makewhole agreements. Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Net Exposure Derivative Liability, Subject to Master Netting Arrangement, after Offset and Deduction Restatement Determination Date: Restatement Determination Date [Axis] Non-PEO NEO Non-PEO NEO [Member] Accumulated Other Comprehensive Income Loss [Table] Accumulated Other Comprehensive Income (Loss) [Table] Debt Securities Issued by the U.S. Treasury and Government Agencies Us Treasury And Government Agencies [Member] This category includes investments in debt securities issued by the United States Department of the Treasury and U.S. Government Agencies. Such securities may include treasury bills (short-term maturities - one year or less), treasury notes (intermediate term maturities - two to ten years), treasury bonds (long-term maturities - ten to thirty years), and debt securities issued by the Government National Mortgage Association (Ginnie Mae). Due After Five Years Through Ten Years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Amortized Cost Accumulated Other Comprehensive Income Loss [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Originations of Loans Held for Sale Payment for Origination and Purchase, Loan, Held-for-Sale Available-for-Sale: Gross Unrealized Gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Offsetting Assets Offsetting Assets [Table Text Block] Name Trading Arrangement, Individual Name Remaining Contractual Maturities of Repurchase Agreements by Class of Collateral Pledged Schedule of Repurchase Agreements [Table Text Block] All Award Types Award Type [Domain] Amortization of Prior Service Credit Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] Equity Awards Adjustments Equity Awards Adjustments [Member] Aggregate Fair Value Loan, Held-for-Sale, Fair Value Disclosure Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Compensation Amount Outstanding Recovery Compensation Amount Maximum current loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent) Financing Receivable Credit Quality Current Loan To Value Ratio Percentage Maximum Represents the maximum current loan-to-value ratio for residential mortgage and home equity loans to be considered as pass. Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Schedule of Tax Credits and Other Tax Benefits Recognized and Amortization Expense Related to Affordable Housing Schedule Of Tax Credits And Other Tax Benefits Recognized And Amortization Expense Related To Affordable Housing [Table Text Block] Schedule of tax credits and other tax benefits recognized and amortization expense related to affordable housing . Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Fair Value Estimate of Fair Value Measurement [Member] Preferred Stock Preferred Stock [Member] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Net Amounts Presented in the Statements of Condition Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral Name Awards Close in Time to MNPI Disclosures, Individual Name Fair Value Option Quantitative Disclosures [Line Items] Fair Value, Option, Quantitative Disclosures [Line Items] Denominator: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Aging Analysis of Accruing and Non-Accruing Loans and Leases Financing Receivable, Past Due [Line Items] Netting Adjustments per Master Netting Arrangements Derivative Liability, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset Share-Based Compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Treasury Stock, at Cost Treasury Stock, Value Net affordable housing tax credit investments including the related unfunded commitments Investment, Proportional Amortization Method, Elected, Amount Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Income (Loss), Net of Tax Other Debt Long-Term Debt and Lease Obligation Assumption For Fair Value As Of Balance Sheet Date Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities [Line Items] Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items] Loans and Leases and the Allowance for Credit Losses Loans And Leases And Allowance For Loan And Lease Losses [Text Block] The disclosure of Loans and Leases and the Allowance for Loan and Lease Losses includes: (1) balances in the entity's classes of loans and leases as of period end; (2) roll forward of the entity's Allowance for Loan and Lease Losses by portfolio segment; (3) balances in the entity's classes of loans and leases by internal credit quality indicators as of period end; (4) an aging analysis of the entity's classes of loans and leases as of period end; (5) balances of impaired loans by the entity's classes of loans as of period end; and (6) information related to the average recorded investment and interest income recognized on impaired loans for the periods presented. Net Unrealized (Losses) Gains Arising During the Period, tax Other Comprehensive Income (Loss) before Reclassifications, Tax Financial Instruments [Domain] Financial Instruments [Domain] Segments Segments [Domain] Income Statement Location Statement of Income Location, Balance [Axis] Investment Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Domain] Repurchase Agreements and Similar Transactions, Maturity Periods [Domain] Repurchase Agreements and Similar Transactions, Maturity Periods [Domain] Statement of Financial Position Location, Balance [Domain] Statement of Financial Position Location, Balance [Domain] Net Exposure Derivative Asset, Subject to Master Netting Arrangement, after Offset and Deduction Minimum Minimum Minimum [Member] Schedule of Interest Income from Taxable and Non-taxable Investment Securities Interest Income From Taxable And Non Taxable Investment Securities [Table Text Block] Interest income from taxable and non-taxable investment securities. Net Interest Income After Provision for Credit Losses Interest Income (Expense), after Provision for Loan Loss Common Stock Issued under Purchase and Equity Compensation Plans Stock Issued During Period Value Purchase And Equity Compensation Plans Value of stock issued during the period as a result of purchase and equity compensation plans. Investment Securities-Available-for-Sale AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] Fair Value of Collateral Pledged/ Received Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset Maturity 91 To 365 Days Maturity From 91 Days To 365 Days [Member] Maturity from 91 days to 365 days. Interest Expense Interest Expense, Operating and Nonoperating [Abstract] Accounts Notes And Loans Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Company Selected Measure Name Company Selected Measure Name Accrued Interest Receivable Accrued Interest Receivable [Member] Accrued Interest Receivable [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Gross Amounts Offset in the Statements of Condition Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Purchases Payments to Acquire Debt Securities, Available-for-Sale Investment Securities Losses, Net Loss on sale of investments Gain (Loss) on Sale of Investments Preferred Stock Preferred Stock, Value, Issued Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Debt Securities Issued by States and Political Subdivisions US States and Political Subdivisions Debt Securities [Member] Accrued Interest Payable Interest Payable Decrease in fair value from 50 bps adverse change Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact From50 Basis Points Adverse Change In Prepayment Speed The hypothetical financial impact of 50 basis points' adverse change of prepayment speed on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) as of the balance sheet date. Fiscal year before latest fiscal year Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Mortgage Servicing Rights Accounted for Under the Amortization Method (Rollforward) Servicing Asset at Amortized Cost, Balance [Roll Forward] Financial Asset, Aging Financial Asset, Aging [Axis] All Executive Categories All Executive Categories [Member] Schedule Of Assets Sold Under Agreements To Repurchase [Table] Asset Sold under Agreement to Repurchase [Table] Common Stock Common Stock, Value, Issued Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Net Gains on Sales of Loans and Leases Gain (Loss) on Sale of Loans and Leases Due After Five Year Through Ten Years Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years Diluted Weighted Average Common Shares (in shares) Weighted Average Common Shares Outstanding - Diluted, (in shares) Weighted Average Number of Shares Outstanding, Diluted Number of ATM's through which products and services are delivered to customers Number Of ATMs Through Which Products And Services Delivered To Customers The number of ATMs through which products and services are delivered to customers. Commitments and Contingencies (Note 11) Commitments and Contingencies Gross charge-offs, current year Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Affordable Housing Projects Tax Credit Partnerships Affordable Housing Program [Text Block] Derivative [Table] Derivative [Table] Home Equity Home Equity Loan [Member] Entity Small Business Entity Small Business Due in One Year or Less Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Number available for sale debt securities Debt Securities Available For Sale, Number Of Positions Debt Securities Available For Sale, Number Of Positions Investment Securities Marketable Securities [Abstract] Preferred Stock, outstanding (in shares) Preferred Stock, Shares Outstanding Consumer Banking Consumer Banking [Member] Consumer Banking. Document Transition Report Document Transition Report Consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure Mortgage Loans in Process of Foreclosure, Amount Aggregate Unpaid Principal Fair Value Option Loans Heldfor Sale Aggregate Unpaid Principal Represents the aggregate unpaid principal balance of loans held for sale for which the fair value option was elected. Underlying Securities Award Underlying Securities Amount Equity Component Equity Component [Domain] Document Period End Date Document Period End Date PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] 60 - 89 Days Past Due Financial Asset, 60 to 89 Days Past Due [Member] Hedging Designation [Axis] Hedging Designation [Axis] Fair value of closed portfolio Hedged Asset, Fair Value Hedge, Portfolio Layer Method, Hedged Layer, Amount Other Other Interest and Dividend Income Equity Compensation Plan Common Stock Repurchases Payments for Repurchase of Equity Compensation Plan Common Stock Payments for Repurchase of Equity Compensation Plan Common Stock Maturity Up To 90 Days Maturity Up To90 Days [Member] Maturity Up To 90 Days [Member] Document Type Document Type Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Earnings Per Common Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Gross charge-offs, Revolving Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff Derivative Contract Derivative Contract [Domain] Schedule Of Financing Receivable Allowance For Credit Losses [Table] Financing Receivable, Allowance for Credit Loss [Table] Proceeds from Issuance of Common Stock Proceeds from Issuance of Common Stock Netting Adjustments per Master Netting Arrangements Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset All Individuals All Individuals [Member] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Purchases of Premises and Equipment Payments to Acquire Property, Plant, and Equipment Name Forgone Recovery, Individual Name Proceeds from Sales of Loans Held for Sale Proceeds from Sale, Loan, Held-for-Sale Weighted-Average Payment Deferral Financing Receivable Modified Weighted Average Payment Deferral Financing Receivable Modified Weighted Average Payment Deferral Statistical Measurement [Axis] Statistical Measurement [Axis] Commercial - Non-Agency Commercial - Non-Agency [Member] Commercial - Non-Agency Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Gross charge-offs, fiscal year before current year Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff Revolving loans, converted to term loan during the period Financing Receivable, Revolving, Converted to Term Loan During Period Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Transfers and Servicing of Financial Assets [Abstract] Transfers and Servicing of Financial Assets [Abstract] Number of branch locations through which products and services are delivered to customers Number Of Branch Locations Through Which Products And Services Delivered To Customers The number of branch locations through which products and services are delivered to customers. Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Gross charge-offs, four fiscal years before current year Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff Due After One Year Through Five Years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Schedule of the Notional Amount and Fair Value of the Derivative Financial Instruments Schedule of Derivative Instruments [Table Text Block] Net Income Available to Common Shareholders Net Income Available to Common Shareholders Net Income (Loss) Available to Common Stockholders, Basic Entity Information [Line Items] Entity Information [Line Items] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Other Comprehensive Income (Loss) Other Comprehensive (Loss) Income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Term Extension and Interest Rate Reduction Extended Maturity and Interest Rate Reduction [Member] Commercial Commercial Portfolio Segment [Member] Derivative Financial Instruments and the Amount and Location of the Net Gains or Losses Recognized in the Statements of Income Derivative Instruments, Gain (Loss) [Table Text Block] Net Change in Other Assets and Other Liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Fair value of investment securities pledged for interest rate swap agreements Securities Held as Collateral, at Fair Value Net Change in Defined Benefit Plans Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) Fair Value, Inputs, Level 1 [Member] Beginning Balance (in shares) Ending Balance (in shares) Shares, Outstanding Constant Prepayment Rate Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact In Prepayment Speed [Abstract] -- None. No documentation exists for this element. -- Diluted Earnings Per Common Share (in USD per share) Diluted (in USD per share) Earnings Per Share, Diluted FDIC Insurance Federal Deposit Insurance Corporation Premium Expense Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Axis] Residential mortgage loans serviced for third parties Residential Mortgage Loans Serviced For Third Parties This element represents the amount of residential mortgage loans serviced for third parties. Number of days past due for loans and leases in classified credit quality indicator Financing Receivable Past Due For Loans And Leases To Be Classified As Classified Credit Quality Indicator Period Financing receivable past due for loans and leases to be classified as classified credit quality indicator period. Total Interest Income from Investment Securities Interest Income, Operating Title of 12(b) Security Title of 12(b) Security Non-Accrual Loans and Leases that are Current Financing Receivable Excluding Accrued Interest Recorded Investment Nonaccrual Status Current Financing Receivable Excluding Accrued Interest Recorded Investment Nonaccrual Status Current Supplemental Noncash Disclosures: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Due in One Year or Less Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Amortized cost basis of loan modifications Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount Cash Dividends Declared Preferred Stock Dividends, Preferred Stock, Cash Other Comprehensive Income (Loss), Net of Tax: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Net Equipment Equipment Expense Treasury Stock (in shares) Treasury Stock, Common, Shares Maximum current combined loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent) Financing Receivable Credit Quality Current Combined Loan To Value Ratio Percentage Maximum Financing receivable credit quality current combined loan to value ratio percentage maximum. Earnings Per Share [Abstract] Earnings Per Share [Abstract] Treasury and Other Treasury And Other [Member] This element represents selected financial information of the treasury business segment. Commercial - Government Agencies or Sponsored Enterprises Commercial - Government Agencies or Sponsored Agencies Commercial - Government Agencies or Sponsored Enterprises [Member] Commercial - Government Agencies or Sponsored Enterprises Consolidation Items [Domain] Consolidation Items [Domain] Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Number of reportable segments disclosed by definition flag Number Of Reportable Segments Disclosed By Definition Flag Number Of Reportable Segments Disclosed By Definition Flag Deferred Compensation Plan Assets Deferred Compensation Plan Assets, Fair Value Disclosure Deferred Compensation Plan Assets, Fair Value Disclosure Term Extension Term Extension Extended Maturity [Member] Proportional Amortization Method Proportional Amortization Methods [Abstract] Proportional amortization methods. Gross charge-offs, two fiscal years before current year Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Schedule of derivative instruments in statement of financial position related to cumulative basis adjustment for fair value hedges Schedule Of Derivative Instruments In Statement Of Financial Position Related To Cumulative Basis Adjustment For Fair Value Hedges [Table Text Block] Schedule of derivative instruments in statement of financial position related to cumulative basis adjustment for fair value hedges. Other Debt Long Term Debt Excluding Capital Lease Obligations Fair Value Long term debt excluding capital lease obligations fair value. Amortized amount of losses Amortization of Deferred Charges Financing Receivable Allowance For Credit Losses [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Common Stock Repurchased Under Share Repurchase Program (in shares) Treasury Stock, Shares, Acquired Unfunded Commitments to Extend Credit Commitments to Extend Credit [Member] Servicing income, including late and ancillary fees Contractually Specified Servicing Fee, Late Fee, and Ancillary Fee Earned in Exchange for Servicing Financial Asset Amortized Cost Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost, Rolling Maturity [Abstract] Award Timing Disclosures [Line Items] Securities Sold Under Agreements to Repurchase Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure Servicing Assets At Amortized Value [Line Items] Servicing Asset at Amortized Cost [Line Items] Residential - Government Agencies or Sponsored Enterprises Gross Amounts Recognized in the Statements of Condition Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, before Offset Amortization Servicing Asset at Amortized Cost, Amortization Due After Five Years Through Ten Years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value Loans and Leases Total Loans and Leases Days Past Due Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Securities Sold Under Agreements to Repurchase Securities Sold under Agreements to Repurchase Net Income Net Income Total Reclassifications for the Period, Net of Tax Net Income (Loss) Attributable to Parent Amortized Cost Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling Maturity [Abstract] Schedule of AFS Debt Securities in an Unrealized Loss Position Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] Expiration Date Trading Arrangement Expiration Date Receive Fixed/Pay Variable Swaps Receive Fixed Or Pay Variable Swap [Member] Represents the receive fixed or pay variable interest rate swap agreements. Amortization Expense in Provision for Income Taxes Proportional Amortization Methods Qualified Affordable Housing Project Investments Amortization Proportional Amortization Method, Qualified Affordable Housing Project Investments, Amortization Weighted-Average Constant Prepayment Rate Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed Premises and Equipment, Net Property, Plant and Equipment, Net Other Noninterest Expense Other Noninterest Expense, Adjusted Other Noninterest Expense, Adjusted Business segment financial information Segment Reporting Information [Line Items] Preferred Stock, authorized (in shares) Preferred Stock, Shares Authorized Numerator: Net Income (Loss) Attributable to Parent [Abstract] Equity Compensation Plan Common Stock Repurchases Payments for Repurchase of Common Stock Adoption Date Trading Arrangement Adoption Date Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Construction Construction Loans [Member] Schedule Of Financing Receivables Past Due [Table] Financing Receivable, Past Due [Table] Entity Current Reporting Status Entity Current Reporting Status Depository Shares, Each Representing 1/40th Interest in a Share of 4.375% Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series A Preferred Series A Stock Series A Preferred Stock [Member] Derivative [Line Items] Derivative [Line Items] Fair Value of Collateral Pledged/ Received Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Change in Fair Value Servicing Asset at Fair Value Payoffs Servicing asset at fair value payoffs. Offsetting Liabilities Offsetting Liabilities [Table Text Block] Retained Earnings Retained Earnings (Accumulated Deficit) Financial Instrument [Axis] Financial Instrument [Axis] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Executive Category: Executive Category [Axis] 12 Months or Longer, Gross Unrealized Losses Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Residential Mortgage Loans Held For Sale Residential Mortgage Held For Sale [Member] A loan to an individual to purchase or refinance residential real estate such as a home, in which the real estate itself serves as collateral for the loan, that will be sold to other entities. Fees, Exchange, and Other Service Charges Fees Exchange And Other Service Charges The noninterest income derived from the following: (1) fees and services from debit card services; (2) fees charged depositors for use of automated teller machines; (3) merchant service activity; (4) annual fees from loans; (5) other fees and service charges. Current Fiscal Year End Date Current Fiscal Year End Date Class of Stock Class of Stock [Axis] Less Than 12 Months, Gross Unrealized Losses Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Total Deposits Deposits Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Professional Fees Professional Fees Statement [Table] Statement [Table] Derivative liabilities Derivatives Derivative Liability Loans and Leases Loans and Leases [Member] Loans and leases. Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Financing Activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Other Other Noninterest Expense Other Noninterest Expense Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Domain] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Decrease in fair value from 25 bps adverse change Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact From25 Basis Points Adverse Change In Discount Rate The hypothetical financial impact of a 25 basis points adverse change of the discount rate on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) as of the balance sheet date. Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Pass Pass [Member] Total Gross Unrealized Losses Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss Balances of Assets and Liabilities Measured at Fair Value on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Net Change in Unrealized Gains (Losses) on Investment Securities Other Comprehensive (Income) Loss, Investment Securities, after Tax and Reclassification Adjustment, Attributable to Parent Net unrealized gain loss on investment securities net of tax. Residential - Government Agencies or Sponsored Enterprises Residential Mortgage Backed Securities Issued By U S Government Sponsored Enterprises [Member] Debt securities collateralized by residential real estate mortgage loans issued by U.S. government-sponsored enterprises. [Member] Antidilutive Restricted Stock Outstanding (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount All Adjustments to Compensation All Adjustments to Compensation [Member] Fair Value By Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Net Amounts Presented in the Statements of Condition Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral Interest Rate Reduction Contractual Interest Rate Reduction [Member] Fair Value, Total Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Fair Value Amendment Flag Amendment Flag Securities Sold Under Agreements to Repurchase Securities Sold Under Agreementsto Repurchase Interest Expense Securities Sold Under Agreements to Repurchase, Interest Expense Available-for-sale, accrued interest Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss Schedule of Aging Analysis by Class of Loan and Lease Portfolio Financing Receivable, Past Due [Table Text Block] Interest-Bearing Demand Interest-Bearing Deposit Liabilities Termination Date Trading Arrangement Termination Date Net Cash (Used in) Provided by Financing Activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Cash and Cash Equivalents Interest-Bearing Deposits in Banks and Other Financial Institutions Representations and Warranties [Line Items] Commitments And Contingencies [Line Items] Commitments and contingencies. Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] 2030 Qualified Affordable Housing Project Investments Commitment Payments Year Four Qualified Affordable Housing Project Investments, Commitment Payments, Year Four Measure: Measure [Axis] Allowance for Credit Losses Balance at Beginning of Period Balance at End of Period Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Provision for Credit Losses Financing Receivable, Credit Loss, Expense (Reversal) Conversion Rate Swap Agreements Visa Conversion Rate Swap Agreement [Member] Visa Class B to Class A Conversion Rate Swap Agreement [Member] Fair Value Derivative, Fair Value, Net Due After Five Year Through Ten Years Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value Time Deposits Fair Value Time Deposits Fair value of time deposits that cannot be withdrawn before a set date without penalty or for which notice of withdrawal is required. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts. Common Stock Issued under Purchase and Equity Compensation Plans (in shares) Stock Issued During Period Shares Purchase And Equity Compensation Plans Number of shares issued during the period as a result of purchase and equity compensation plans. Basic Weighted Average Common Shares (in shares) Weighted Average Common Shares Outstanding - Basic, (in shares) Weighted Average Number of Shares Outstanding, Basic Amortization of Net Actuarial Losses Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] 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 Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Held-to-Maturity: Debt Securities, Held-to-Maturity, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] Consumer Consumer Portfolio Segment [Member] Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact Of Adverse Change In Assumption [Line Items] Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Segment Reporting [Abstract] Segment Reporting [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Amortization of Operating Lease Right-of-Use Assets Operating Lease, Expense Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Entity Tax Identification Number Entity Tax Identification Number Reclassification from AOCI, tax Reclassification from AOCI, Current Period, Tax Mortgage Banking Mortgage Banking Income The noninterest income derived from mortgage banking activities. Includes fees earned from servicing held in portfolio loans as well as loans sold in the secondary market, gains and losses on the sale of mortgage loans to investors, activities related to mortgage servicing rights, and gains and losses resulting from mortgage-related derivative financial instruments. Schedule of Sensitivity Analysis of the Fair Value Schedule of Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets [Table Text Block] Gross charge-offs, three fiscal years before current year Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff Available-for-sale Securities, Fair Value Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Fair Value Reclassification from AOCI Reclassification from AOCI, Current Period, before Tax, Attributable to Parent Offsetting Derivative Liabilities [Abstract] Offsetting Derivative Liabilities [Abstract] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Common Stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common Stock, issued (in shares) Common Stock, Shares, Issued Other Comprehensive (Loss) Income, tax Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Net Occupancy Occupancy, Net Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Offsetting Securities Sold under Agreements to Repurchase [Abstract] Offsetting Securities Sold under Agreements to Repurchase [Abstract] Aggregate Fair Value Less Aggregate Unpaid Principal Fair Value, Option, Aggregate Differences, Loans and Long-Term Receivables Weighted-Average Life (in years) Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Weighted Average Life Gross Amounts Offset in the Statements of Condition Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Insider Trading Arrangements [Line Items] Prior Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Security Exchange Name Security Exchange Name Net Amounts Presented in the Statements of Condition Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, after Offset Current Financial Asset, Not Past Due [Member] Total Liabilities Liabilities Total Mortgage-Backed Securities Collateralized Mortgage-Backed Securities [Member] Interest Rate Lock Commitments Interest Rate Lock Commitments [Member] Amortized cost of closed portfolio Financial Asset, Closed Portfolio, Portfolio Layer Method, Amortized Cost Amortized Cost, Total Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Foreign Exchange Swaps Foreign Exchange Swaps [Member] Foreign Exchange Swaps Equity Compensation Plan Common Stock Repurchases (in shares) Stock Repurchased During Period, Shares Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Net Change in Loans and Leases Payments for (Proceeds from) Loans and Leases Savings Deposits, Savings Deposits 2028 Qualified Affordable Housing Project Investments Commitment Payments Year Two Qualified Affordable Housing Project Investments, Commitment Payments, Year Two Decrease in fair value from 25 basis points (“bps”) adverse change Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact From25 Basis Points Adverse Change In Prepayment Speed The hypothetical financial impact of 25 basis points' adverse change of prepayment speed on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) as of the balance sheet date. Statement [Line Items] Statement [Line Items] Consolidation Items [Axis] Consolidation Items [Axis] 2027 Qualified Affordable Housing Project Investments Commitment Payments Year One Qualified Affordable Housing Project Investments Commitment Payments Year One Carrying Amount of the Hedged Assets Hedged Asset, Fair Value Hedge Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Proceeds from Prepayments and Maturities Proceeds from Maturities, Prepayments and Calls of Held-to-Maturity Securities Common Stock, par value $0.01 per share Common Stock Common Stock [Member] Total Past Due and Non-Accrual Financing Receivable Excluding Accrued Interest Recorded Investment Past Due And Nonaccrual Status Financing Receivable Excluding Accrued Interest Recorded Investment Past Due And Nonaccrual Status Held-to-Maturity Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss Held-to-maturity, accrued interest Debt Securities, Held-to-Maturity, Accrued Interest, before Allowance for Credit Loss Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Debt Securities Issued by Corporations Corporate Debt Securities [Member] Net Change in Cash and Cash Equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Assumption For Fair Value As Of Balance Sheet Date Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities [Table] Schedule of Assumptions for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Table]