Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Subordinated debt, net Subordinated Debt Loans held for sale (includes fair value of $4,940 at June 30, 2026 and $8,212 at December 31, 2025 for loans originated for sale) Financing Receivable, Held-for-Sale Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Short-term Debt, Type [Axis] Short-Term Debt, Type [Axis] Title of 12(b) Security Title of 12(b) Security Subsequent Event Subsequent Event [Member] Debt Securities, Available-for-sale [Table] Debt Securities, Available-for-Sale [Table] Carrying Amount Reported Value Measurement [Member] Net (charge-offs) recoveries Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) Adjustment to Compensation, Amount Adjustment to Compensation Amount Financial Instrument [Axis] Financial Instrument [Axis] Segment Reporting [Abstract] Segment Reporting [Abstract] Mortgage banking derivatives Mortgage Banking Derivatives [Member] Mortgage Banking Derivatives [Member] Estimated Future Amortization Expense Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense [Table Text Block] Risk Participation Agreement Risk Participation Agreement [Member] Risk Participation Agreement [Member] Participating Mortgage Loans [Axis] Participating Mortgage Loans [Axis] Transfer of loans to loans held for sale, net Financing Receivable, Reclassification to Held-for-Sale Performance-Based Restricted Stock Units Performance Based Restricted Stock Units [Member] Performance Based Restricted Stock Units [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] AAA/AA/A Rated AAA To AA To A Rating [Member] AAA To AA To A Rating [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Capital markets Income from Capital Markets Income from Capital Markets Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Financial Instrument Performance Status [Domain] Financial Instrument Performance Status [Domain] Lease right of use assets Operating And Finance Lease, Right-of-Use-Asset Operating And Finance Lease, Right-of-Use-Asset Doubtful Doubtful [Member] Commercial and Industrial and Commercial Real Estate Commercial and Industrial and Commercial Real Estate [Member] Commercial and Industrial and Commercial Real Estate Deposits Deposit Liabilities Disclosures [Text Block] Interest rate reduction Contractual Interest Rate Reduction [Member] Credit Rating, Agencies [Axis] Credit Rating, Agencies [Axis] Credit Rating, Agencies [Axis] Technology, furniture and equipment expense Technology, Furniture And Equipment Expense Technology, Furniture And Equipment Expense Amortized Cost, Gross Unrealized Gains and Losses and Fair Value of Debt Securities Held to Maturity Debt Securities, Held-to-Maturity [Table Text Block] Notional amount, expired Derivative, Notional Amount, Expired Derivative, Notional Amount, Expired More than five years gross loan charge-offs Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff Total Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment and Tax Total Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss Unrealized Losses Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract] More than five years before current fiscal year Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Amounts Reclassified from Accumulated Other Comprehensive Loss Reclassification out of Accumulated Other Comprehensive Income [Member] Other intangible assets, net Net Intangible Assets Intangible Asset, Excluding Goodwill, after Accumulated Amortization Financing Receivable, Troubled Debt Restructuring Financing Receivable, Modified [Table Text Block] Gross loan charge-offs Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] Schedule of FHLB Repayment Federal Home Loan Bank, Advance, Branch of FHLBank [Table Text Block] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Unrealized Losses Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Loss [Abstract] Construction Construction Loans [Member] Net Carrying Value Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss Non-Cumulative Perpetual Preferred Stock, Series A Non-Cumulative Perpetual Preferred Stock, Series A [Member] Non-Cumulative Perpetual Preferred Stock, Series A Short-term Debt, Type [Domain] Short-Term Debt, Type [Domain] Individually evaluated for credit losses Financing Receivable, Allowance for Credit Loss, Individually Evaluated Entity Address, City or Town Entity Address, City or Town Number of shares granted during the period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Receivables [Abstract] Receivables [Abstract] Savings, NOW and money market Savings Now And Money Market The aggregate amount of all domestic and foreign interest bearing savings, NOW and money market deposit liabilities with no stated maturity dates. Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Title of Individual [Domain] Title and Position [Domain] 2028 Time Deposit Maturities, Year Two Year one, gross loan charge-offs Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Significant Other Observable Inputs (Level 2) Level 2 Fair Value, Inputs, Level 2 [Member] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] 90 Days or More Past Due Loans Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Dividends Dividend Income, Operating Subsequent Event Type [Axis] Subsequent Event Type [Axis] Total Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Insurance commissions Insurance Commissions and Fees Schedule of Financial Data for Business Segments Segment Reporting [Table Text Block] Municipal bonds Municipal Bonds [Member] Significant Estimates Use of Estimates, Policy [Policy Text Block] Other comprehensive (loss) income, net Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Construction Construction [Member] Participating Mortgage Loan, Name [Domain] Participating Mortgage Loan, Name [Domain] Due after one year through five years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Less: Allowance for loan losses Allowance for loan losses Beginning balance Ending balance Total Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Document Period End Date Document Period End Date Accrued interest payable Accrued Interest Payable Fair Value Disclosure Accrued interest payable fair value disclosure Revolving Loans Converted to Term Loans Revolving Loans Converted to Term Loans Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan Earnings Per Common Share: Earnings Per Share, Basic [Abstract] Fair Value, Inputs, Level 1, Level 2, and Level 3 Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Due after ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Securities sold under agreements to repurchase Securities Sold under Agreements to Repurchase Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] Collateral dependent loans Collateral Dependent Impaired Loans Fair value of the collateral dependent impaired loans. % of Total Loan Class Financing Receivable, Excluding Accrued Interest, Modified in Period, to Total Financing Receivables, Percentage Earnings Per Common Share Earnings Per Share [Text Block] Earnings Per Common Share: Earnings Per Share [Abstract] Document Period Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Due in one year Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Year One Total Liabilities Liabilities Trading Symbol Trading Symbol Weighted Average Interest Rate Reduction Financing Receivable, Modified, Weighted-Average Interest Rate Decrease from Modification Available for sale debt securities Fair Value Total Debt Securities, Available-for-Sale, Excluding Accrued Interest Purchases of real estate property and equipment Payments to Acquire Property, Plant, and Equipment Gains (Losses) Related to Interest Rate Derivatives Designated as Hedges of Fair Value Schedule of Interest Rate Derivatives [Table Text Block] Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Company Selected Measure Name Company Selected Measure Name Purchases Payments to Acquire Debt Securities, Available-for-Sale Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Derivative, fixed interest rate Derivative, Fixed Interest Rate Schedule of Indefinite-Lived Intangible Assets [Table] Intangible Asset, Indefinite-Lived [Table] Due after one year through five years Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Axis] Debt Securities, Held-to-maturity, Credit Quality Indicator [Table] Debt Securities, Held-to-Maturity, Credit Quality Indicator [Table] Gain Loss On Fair Value Hedges Recognized In Earnings [Table] Gain Loss On Fair Value Hedges Recognized In Earnings [Table] Gain Loss On Fair Value Hedges Recognized In Earnings [Table] Year one, current fiscal year Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Non covered loans net of unearned discount and deferred loan fees Non Covered Loans Net Of Unearned Discount And Deferred Loan Fees Loans not subject to the FDIC loss share agreements (on-covered loans) net of unearned discount and deferred loan fees. Executive Officer Executive Officer [Member] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Provision for credit losses for loans Total provision for credit losses for loans Allowance For Credit Loss, Expense (Reversal) Allowance For Credit Loss, Expense (Reversal) U.S. Treasury securities US Treasury Securities [Member] Financing Receivable, Modified [Line Items] Financing Receivable, Modified [Line Items] Entities [Table] Entities [Table] Investment securities: Investments, Fair Value Disclosure [Abstract] Available for sale debt securities: Proceeds from Sale and Maturity of Held-to-Maturity Securities [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Plus: Common stock equivalents (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment Other Other Other Intangible Assets [Member] Non-recurring fair value measurements: Fair Value Measurements, Nonrecurring Value Measurement [Abstract] Residential mortgage-backed securities Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Amortized Cost Award Timing Predetermined Award Timing Predetermined [Flag] Losses on available for sale and held to maturity debt securities, net Debt Securities, Gain (Loss) Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Quoted Prices in Active Markets for Identical Assets (Level 1) Level 1 Fair Value, Inputs, Level 1 [Member] Transfer of loans to other real estate owned, net Transfer Of Loans Held For Investment To Other Real Estate The amount represents loans transferred from the held for investment category to other real estate owned. Amounts Related To Interest Rate Derivatives Included In Income Designated As Hedges Of Cash Flows [Line Items] Amounts Related To Interest Rate Derivatives Included In Income Designated As Hedges Of Cash Flows [Line Items] Amounts Related To Interest Rate Derivatives Included In Income Designated As Hedges Of Cash Flows [Line Items] Available for sale debt securities: Debt Securities, Available-for-Sale [Abstract] Fair value of financial instruments hedged by derivative transactions Gain (loss) related to hedged loans Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Residential mortgage-backed securities Residential Mortgage-Backed Securities [Member] Gain arising during the period Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax Due in one year Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Fee income related to derivative interest rate swaps executed with commercial loan customers Gain (loss) related to derivative interest rate swaps Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments Investment Securities Investment in Debt and Equity Securities and Other Trading Assets [Text Block] Cash dividends paid to common shareholders Payments of Ordinary Dividends, Common Stock Expiration Date Trading Arrangement Expiration Date Total allowance for credit losses for loans Allowance For Credit Losses Allowance for loan and unfunded letters of credit losses. Hedging Relationship [Axis] Hedging Relationship [Axis] Gross Unrealized Gains Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain Financial Instruments Derivative Asset, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset Net Amount Derivative Asset, Subject to Master Netting Arrangement, after Offset and Deduction Cash and due from banks Cash and Cash Equivalents, Fair Value Disclosure Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Derivative [Table] Derivative [Table] Common stock issued, net Proceeds from Issuance of Common Stock BBB rated BBB Rating [Member] BBB Rating [Member] Earnings Per Share Reconciliation Earnings Per Share Reconciliation [Abstract] Common stock, par value (usd per share) Common Stock, No Par Value Commercial real estate Real Estate Loan [Member] Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Stock-based compensation amortization expense unrecognized Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Segments [Domain] Segments [Domain] Interest rate swaps Derivative - interest rate swaps: Interest Rate Swap [Member] Borrowed Funds Debt Disclosure [Text Block] Deferred issuance costs Debt Issuance Costs, Net Net accretion of discounts and amortization of premium on securities and borrowings Accretion Amortization Of Discounts And Premiums Investments And Borrowings The sum of the periodic adjustments of the differences between securities'/borrowings' face values and purchase prices that are charged against earnings. This is called accretion if the security/borrowing was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by (used in) operations using the indirect method. Trading debt securities Increase (Decrease) in Debt Securities, Trading PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Fair Value Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract] Cash dividends declared on common stock Dividends, Common Stock, Cash Total Shareholders’ Equity Beginning balance Ending balance Equity, Attributable to Parent 30-89 Days Past Due Financial Asset, 30 to 89 Days Past Due [Member] Financial Asset, 30 to 89 Days Past Due Real Estate [Domain] Real Estate [Domain] Assets Assets [Abstract] 2029 Federal Home Loan Bank, Advance, Maturity, Year Three Other than Insignificant Payment Delay Payment Deferral [Member] Risk Category of Loans Financing Receivable Credit Quality Indicators [Table Text Block] Professional and legal fees Professional Fees Non-recurring fair value measurements Fair Value, Nonrecurring [Member] Insider Trading Policies and Procedures [Line Items] Non-performing loan held for sale Nonperforming Financial Instruments [Member] Performance Shares Performance Shares [Member] Commercial real estate Commercial Real Estate Commercial Real Estate Portfolio Segment [Member] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Components of income tax expense: Affordable Housing Tax Credits, Income Tax Expense [Abstract] Affordable Housing Tax Credits, Income Tax Expense [Abstract] Anti-dilutive common stock options and warrants (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Goodwill Goodwill [Table Text Block] Entity Central Index Key Entity Central Index Key Net Interest Income After Provision for Credit Losses Net interest income after provision for credit losses Interest Income (Expense), after Provision for Loan Loss Surplus Additional Paid in Capital, Common Stock Equity [Abstract] Equity [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] Weighted Average Payment Deferral (in months) Financing Receivable, Modified, Payment Deferral, Period Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Cash dividends declared on preferred stock Dividends, Preferred Stock, Cash Derivatives designated as hedging instruments Derivatives designated as hedging instruments: Designated as Hedging Instrument [Member] Financing Receivable, Modified [Table] Financing Receivable, Modified [Table] Number of security positions in the securities held to maturity portfolio in an unrealized loss position Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Subordinated debt basis points Debt Instrument, Basis Spread on Variable Rate Non-Accrual Loans Without Allowance for Loan Losses Financing Receivable, Excluding Accrued Interest, Nonaccrual, No Allowance Originations of loans held for sale Payment for Origination and Purchase, Loan, Held-for-Sale Accumulated Other Comprehensive Loss Total Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Net Carrying Amount of the Hedge Asset Hedged Asset, Fair Value Hedge Performing Performing Financial Instruments [Member] Fair value of debt securities available for sale pledged as collateral Debt Securities, Available-for-Sale, Restricted Average remaining vesting period (in years) Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Statement [Line Items] Statement [Line Items] Total Assets Assets Term Extension Extended Maturity [Member] Total interest expense Interest expense Interest Expense, Operating Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Operating Segments Operating Segments [Member] Consumer Banking Consumer Banking Segment [Member] Customer lending member Gross Unrealized Gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Stock-Based Compensation Share-Based Payment Arrangement [Text Block] Residential mortgage-backed securities Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Fair Value Other comprehensive (loss) gain before reclassification OCI, before Reclassifications, Net of Tax, Attributable to Parent Net occupancy expense Occupancy, Net PEO PEO [Member] Beginning balance (in shares) Ending balance (in shares) Shares, Outstanding Non-interest bearing Noninterest-Bearing Deposit Liabilities Goodwill Goodwill Goodwill Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Number of security positions in the debt securities available for sale portfolio in an unrealized loss position Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions Financial Instruments Derivative Liability, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset Retained Earnings Retained Earnings [Member] Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Carrying Amounts and Estimated Fair Values of Financial Instruments Carrying Amounts And Estimated Fair Values Of Financial Instruments [Table Text Block] Carrying amounts and estimated fair values of financial instruments Weighted-average remaining expected life of residential mortgage-backed securities held to maturity, years Weighted Average Remaining Expected Life Of Residential Mortgage Backed Securities Held To Maturity Weighted-average remaining expected life of residential mortgage-backed securities held to maturity Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Award Timing Disclosures [Line Items] Other tax credit investments, net Other Tax Credit Investments, Net Other Tax Credit Investments, Net Subordinated borrowing interest rate Subordinated Borrowing, Interest Rate Assets and Liabilities Measured at Fair Value on a Recurring and Non-Recurring Basis Fair Value, by Balance Sheet Grouping [Table Text Block] Financing Receivable, Past Due [Line Items] Financing Receivable, Past Due [Line Items] Corporate and other debt securities Corporate Debt Securities [Member] Diluted (usd per share) Earnings Per Share, Diluted Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] FDIC insurance assessment Federal Deposit Insurance Corporation Premium Expense Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Roll Forward] Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Roll Forward] Amortization of other intangible assets Amortization of other intangible assets Intangible Asset, Finite-Lived, Amortization Expense Intangible Asset, Finite-Lived [Line Items] Intangible Asset, Finite-Lived [Line Items] Year four, three years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Offsetting Assets Offsetting Assets [Table Text Block] Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Summary of Collateral Dependent Loans Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block] Assets Financial assets Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Service charges on deposit accounts Deposit Account [Member] Held to maturity debt securities: Proceeds from Sale, Maturity and Collection of Investments [Abstract] Schedule of Equity Method Investments [Table] Equity Method Investment [Table] Other Noninterest Income, Other Title of Individual [Axis] Title and Position [Axis] Weighted average interest rate for long-term borrowings Long-Term Debt, Weighted Average Interest Rate, at Point in Time Other non-interest expense Derivative, Gain (Loss) on Derivative, Net Number of reportable segments not Disclosed flag Number Of Reportable Segments Not Disclosed Flag Number Of Reportable Segments Not Disclosed Flag 2026 Time Deposit Maturities, Remainder of Fiscal Year Total reduction in income tax expense Income Tax Expense (Benefit), Reduction From Affordable Housing Tax Credits And Other Tax Credit Investments Income Tax Expense (Benefit), Reduction From Affordable Housing Tax Credits And Other Tax Credit Investments Unrealized gains on derivatives (cash flow hedges) Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract] Collateral Held [Axis] Collateral Held [Axis] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Loan servicing rights Loan Servicing Rights Loan Servicing Rights [Member] Loan Servicing Rights [Member] Revolving Loans Amortized Cost Basis Revolving Loans Amortized Cost Basis Financing Receivable, Excluding Accrued Interest, Revolving Balance Sheet Offsetting Balance Sheet Offsetting Disclosure [Text Block] Balance Sheet Offsetting Disclosure [Text Block] Summary of Activity in Allowance for Loan Losses Financing Receivable, Allowance for Credit Loss [Table Text Block] Common stock, shares issued (in shares) Common Stock, Shares, Issued Entity Information [Line Items] Entity Information [Line Items] Commercial Banking Commercial Banking Segment [Member] Commercial lending member More than 12 Months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Accumulated Other Comprehensive Loss Comprehensive Income (Loss) Note [Text Block] Product and Service [Domain] Product and Service [Domain] Long-term borrowings Long-Term Debt [Member] Non-Interest Expense Noninterest Expense [Abstract] Net (Gains) Losses Related to Derivative Instruments Not Designated as Hedging Instruments Schedule Of Gains Losses Income Related To Derivative Instruments Not Designated As Hedging Instruments [Table Text Block] Schedule of gains (losses) income related to derivative instruments not designated as hedging instruments Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Reclassification Out Of Accumulated Other Comprehensive Loss Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Termination Date Trading Arrangement Termination Date Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Fair Value as of Grant Date Award Grant Date Fair Value Number of instruments expired Derivative, Number of Instruments Expired Derivative, Number of Instruments Expired Collateral Pledged Collateral Pledged [Member] Home equity Home Equity Portfolio Segment [Member] Home Equity Portfolio Segment Age of Unrealized Losses and Fair Value of Related Debt Securities Held to Maturity Held To Maturity Securities Age Of Unrealized Losses And Fair Value [Table Text Block] Tabular disclosure of the age of unrealized losses and fair value of held to maturity securities. Age of Unrealized Losses and Fair Value of Related Available for Sale Debt Securities Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] Gains on sales of assets, net Gain (Loss) on Disposition of Assets Schedule of Goodwill [Table] Goodwill [Table] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Interest Rate Swaps Entered In 2026 Interest Rate Swaps Entered In 2026 [Member] Interest Rate Swaps Entered In 2026 Less than 12 Months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Average interest earning assets Average Interest Earning Assets Average interest earning assets represent average balances of various income producing assets depending on the business segment during the reported period (s). The consumer lending segment is mainly comprised of residential mortgages, home equity loans and automobile loans. The commercial lending segment is mainly comprised of floating rate and adjustable rate commercial and industrial loans, as well as fixed rate owner occupied and commercial real estate loans. The investment management segment generates a large portion of our income through investments in various types of securities. Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Amounts Related To Interest Rate Derivatives Included In Income Designated As Hedges Of Cash Flows [Table] Amounts Related To Interest Rate Derivatives Included In Income Designated As Hedges Of Cash Flows [Table] Amounts Related To Interest Rate Derivatives Included In Income Designated As Hedges Of Cash Flows [Table] Gross Intangible Assets Intangible Asset, Finite-Lived, before Accumulated Amortization Specific valuation allowance allocations Impaired Loans Specific Valuation Allowance Allocation Specific valuation for loan losses related to impaired loans which are evaluated for impairment on an individual basis. Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Provision for credit losses Provision (credit) for credit losses Allowance For Credit Loss, Expense (Reversal), Including Debt Securities Held-To-Maturity Allowance For Credit Loss, Expense (Reversal), Including Debt Securities Held-To-Maturity Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Share-based compensation arrangement by share-based payment award, award vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Amortization of tax credit investments Investment Tax Credit, Amortization Investment Tax Credit, Amortization Intangible Asset, Finite-Lived, Class [Domain] Intangible Asset, Finite-Lived, Class [Domain] Investment securities: Marketable Securities [Abstract] Award Type [Domain] Award Type [Domain] Fair Value Measurement of Assets and Liabilities Fair Value Disclosures [Text Block] Amortized Cost Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date [Abstract] Significant Unobservable Inputs (Level 3) Level 3 Fair Value, Inputs, Level 3 [Member] U.S. government agency securities US Government Agencies Debt Securities [Member] 2027 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One Common stock repurchased (in shares) Treasury Stock, Shares, Acquired NAV Fair Value Measured at Net Asset Value Per Share [Member] Schedule of Short-Term Debt [Table] Short-Term Debt [Table] Allowance for Credit Losses Beginning balance Ending balance Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest Other assets Other Assets Derivative, cost of hedge Derivative, Cost of Hedge 30-59  Days  Past Due Loans Financial Asset, 30 to 59 Days Past Due [Member] Net Carrying Amount of the Hedge Liability Hedged Liability, Fair Value Hedge Affordable housing tax credit investment losses Amortization Method Qualified Affordable Housing Project Investments, Amortization, Investment Losses Amortization Method Qualified Affordable Housing Project Investments, Amortization, Investment Losses Common stock repurchased Treasury Stock, Value, Acquired, Cost Method Non-Interest Income Noninterest Income [Abstract] Cash and cash equivalents at beginning of year Cash and cash equivalents at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Cash Collateral Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset Other tax credit investment credits and tax benefits Other Tax Credit Investment Credits And Tax Benefits Other Tax Credit Investment Credits And Tax Benefits Schedule of Finite-Lived Intangible Assets [Table] Intangible Asset, Finite-Lived [Table] Federal home loan bank, advances, weighted average interest rate Federal Home Loan Bank, Advances, Weighted Average Interest Rate Reclassification from Each Component of Accumulated Other Comprehensive Loss Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Non-NEOs Non-NEOs [Member] Allowance for loan losses: Financing Receivable, Allowance for Credit Loss [Roll Forward] Reporting Unit [Domain] Reporting Unit [Domain] 2028 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two Professional and legal fees Professional And Legal Fees Fees charged for services from professionals, such as lawyers and accountants, and legal fees equal to the amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings. Allowance for Credit Losses for Held to Maturity Debt Securities Credit Loss, Financial Instrument [Policy Text Block] Due after five years through ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block] Purchase of common shares to treasury Payments for Repurchase of Common Stock Statistical Measurement [Axis] Statistical Measurement [Axis] FHLB advances, net Long-Term Federal Home Loan Bank Advances Gains (Losses) Related to Interest Rate Derivatives Designated as Hedges of Cash Flows Derivative Instruments, Gain (Loss) [Table Text Block] Award Type [Axis] Award Type [Axis] Hedged items - loans, time deposits and subordinated debt: Interest rate swaps and other contracts Interest Rate Contract [Member] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss Retained earnings Retained Earnings (Accumulated Deficit) Consumer loans Consumer Portfolio Segment [Member] Product and Service [Axis] Product and Service [Axis] Foreclosed assets Repossessed Assets Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Short-Term Debt [Line Items] Short-Term Debt [Line Items] Common Stock Common Stock Common Stock [Member] Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Year five, gross loan charge-offs Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff Series B Preferred Series B Series B Preferred Stock [Member] Derivative Contract [Domain] Derivative Contract [Domain] Affordable Housing Tax Credit Investments and Other Tax Credit Investments Affordable Housing Tax Credit Investments and Other Tax Credit Investments [Table Text Block] Affordable Housing Tax Credit Investments and Other Tax Credit Investments [Table Text Block] Financial Asset, Past Due Financial Asset, Past Due [Member] Total Liabilities and Shareholders’ Equity Liabilities and Equity Employee Stock Option Share-Based Payment Arrangement, Option [Member] Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Trading debt securities Debt Securities, Trading Tabular List, Table Tabular List [Table Text Block] Purchases Payments to Acquire Held-to-Maturity Securities Interest on deposits: Interest Expense, Domestic Deposits [Abstract] 2029 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three 2026 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year Name Awards Close in Time to MNPI Disclosures, Individual Name Due after five years through ten years Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 5 through 10 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] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Reported net carrying amount of collateral dependent loans Impaired Loans Reported Net Carrying Value Impaired loans, reported net carrying value. Preferred stock, no par value; 50,000,000 authorized shares: Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Accrued expenses and other liabilities Increase (Decrease) in Other Accounts Payable and Accrued Liabilities FRB and FHLB stock Investment in Federal Home Loan Bank Stock, Fair Value Disclosure Deposits without stated maturities Deposits Without Stated Maturities Fair Value Disclosure This item represents the aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, and negotiable orders of withdrawal (NOW). Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Total tax credit investments, net Tax Credit Investments, Net Tax Credit Investments, Net Allocation Of Allowance For Loan Losses Disaggregated Based On Impairment Methodology Allocation Of Allowance For Loan Losses Disaggregated Based On Impairment Methodology [Table Text Block] Allocation of the Allowance for Loan Losses Disaggregated Based on the Impairment Methodology Interest on deposits and borrowings Interest Paid, Excluding Capitalized Interest, Operating Activity Hedging Designation [Axis] Hedging Designation [Axis] 60-89  Days  Past Due Loans Financial Asset, 60 to 89 Days Past Due [Member] Return on average interest earning assets (pre-tax) Return On Average Interest Earning Assets Before Tax Return on average interest earning assets before tax represents a ratio of net income before income taxes to average earning assets. Total assets Assets, Fair Value Disclosure Derivatives And Hedging Activities [Table] Derivatives And Hedging Activities [Table] Derivatives And Hedging Activities [Table] Name Measure Name Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Debt Instrument [Line Items] Debt Instrument [Line Items] Sales and capital returns Proceeds from Sale of Equity Securities, FV-NI Interest and fees on loans Interest and Fee Income, Financing Receivable Surplus Additional Paid-in Capital [Member] Goodwill impairment Goodwill, Impairment Loss Name Trading Arrangement, Individual Name Taxi Medallion Loan Portfolio Taxi Medallion Loan Portfolio [Member] Taxi Medallion Loan Portfolio Gains (losses) on securities transactions, net Debt and Equity Securities, Gain (Loss) Company Selected Measure Amount Company Selected Measure Amount In formal foreclosure proceedings In Formal Foreclosure Proceedings [Member] In Formal Foreclosure Proceedings [Member] Summary of Provision for Credit Losses Schedule Of Provision For Credit Losses [Table Text Block] Schedule of Provision for Credit Losses Table Text Block Effect of stock incentive plan, net (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Accounts and Financing Receivables [Table] Collectively evaluated for credit losses Financing Receivable, Allowance for Credit Loss, Collectively Evaluated Non-PEO NEO Non-PEO NEO [Member] Thereafter Time Deposit Maturities, after Year Four Time Deposit Maturities, after Year Four Total non-interest expense Non-interest expense Noninterest Expense Award Timing Method Award Timing Method [Text Block] 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 Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Other consumer Other Consumer Loan [Member] Other Consumer Loan [Member] Accrued interest on investments available for sale Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss Deposits: Deposits, Interest-Bearing and Noninterest-Bearing, Alternative [Abstract] Residential mortgage-backed securities Debt Securities, Held-to-Maturity, Maturity, without Single Maturity Date, Fair Value Net Income Net income Total net of tax Net Income (Loss) Attributable to Parent Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Proceeds from sales of real estate property and equipment Proceeds from Sale of Property, Plant, and Equipment Restatement Determination Date: Restatement Determination Date [Axis] Offsetting Assets Derivative Asset, Including Not Subject to Master Netting Arrangement, after Offset and Deduction [Abstract] Components of Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Gross loan charge-offs Residential Mortgage and Consumer [Member] Residential Mortgage and Consumer Affordable housing tax credit investment impairment losses Amortization Method Qualified Affordable Housing Project Investments, Amortization, Impairment Losses Amortization Method Qualified Affordable Housing Project Investments, Amortization, Impairment Losses Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Due after ten years Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 10 Statistical Measurement [Domain] Statistical Measurement [Domain] Document Fiscal Year Focus Document Fiscal Year Focus Other Assets Gross Amounts Offset Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Preferred stock, par value (usd per share) Preferred Stock, No Par Value Total deposits Deposits Common stock (no par value, authorized 650,000,000 shares; issued 560,878,750 shares at June 30, 2026 and December 31, 2025) Common Stock, Value, Issued Purchase of common shares related to stock compensation plan activity Payment, Tax Withholding, Share-Based Payment Arrangement Depreciation and amortization Depreciation, Amortization and Accretion, Net 2028 Federal Home Loan Bank, Advance, Maturity, Year Two Schedule of Long-Term Borrowings Schedule of Long-Term Debt Instruments [Table Text Block] Time-Based Restricted Stock Units Time Based Restricted Stock Units [Member] Time Based Restricted Stock Units [Member] Restatement Determination Date Restatement Determination Date Other Other non-interest expense Other Noninterest Expense Amendment Flag Amendment Flag Goodwill [Line Items] Goodwill [Line Items] Credit default swap Credit Default Swap [Member] Gross Unrealized Losses Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Amortized Cost, Gross Unrealized Gains and Losses and Fair Value of Debt Securities Available for Sale Debt Securities, Available-for-Sale [Table Text Block] Federal Home Loan Bank Advances Federal Home Loan Bank Advances [Member] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Other real estate owned Other Real Estate, Foreclosed Assets, and Repossessed Assets Entity Address, State or Province Entity Address, State or Province Purchases Payments to Acquire Equity Securities, FV-NI Series C Preferred Series C Series C Preferred Stock [Member] Non-Accrual Loans Financing Receivable, Excluding Accrued Interest, Nonaccrual PEO Total Compensation Amount PEO Total Compensation Amount Affordable housing tax credit investments, net Investment, Proportional Amortization Method, Elected, Amount 2027 Time Deposit Maturities, Year One Residential mortgage-backed securities Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, without Single Maturity Date Notional amount Notional Amount Derivative, Notional Amount Basic weighted average number of common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Cash surrender value of bank owned life insurance Increase (Decrease) In Bank Owned Life Insurance Increase (Decrease) In Bank Owned Life Insurance Interest on federal funds sold and other short-term investments Interest On Federal Funds Sold And Other Short Term Investments Interest income on federal funds sold and other short-term investments, including interest bearing deposits with banks. Federal funds sold represent the excess federal funds held by one commercial bank which it lends to another commercial bank, usually at an agreed-upon (federal funds) rate of interest. Such loans generally are of short-duration (overnight). Financing Receivable, Credit Quality Indicator [Line Items] Financing Receivable, Credit Quality Indicator [Line Items] Interest bearing deposits with banks Interest-Bearing Deposits in Banks and Other Financial Institutions Due after five years through ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Accrued interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Unrealized gains and losses on available for sale securities Other Comprehensive Income (Loss), Available-for-Sale Securities Adjustment, Net of Tax, Portion Attributable to Parent [Abstract] Total non-interest income Non-interest income Noninterest Income Revenue from contracts with customer Revenue from Contract with Customer, Including Assessed Tax Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract] Loans and Allowance for Credit Losses for Loans Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Time Deposits with stated maturities Total time deposits Time Deposits Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Short-term borrowings Short Term Borrowings Fair Value Disclosure Short term borrowings fair value disclosure Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Cash dividends paid to preferred shareholders Payments of Ordinary Dividends, Preferred Stock and Preference Stock Class of Stock [Axis] Class of Stock [Axis] Debt issuance costs, gross Debt Issuance Costs, Gross Non-rated Non-Rated [Member] Non-Rated [Member] Net Income Available to Common Shareholders Net income available to common shareholders Net Income (Loss) Available to Common Stockholders, Basic Debt Securities, Held-to-maturity [Table] Debt Securities, Held-to-Maturity [Table] Equity securities: Equity Securities, FV-NI and without Readily Determinable Fair Value [Abstract] Accumulated Amortization Intangible Asset, Finite-Lived, Accumulated Amortization Fees from loan servicing Servicing Fees, Net1 Servicing Fees, Net1 Fair value of investments held to maturity pledged as collateral Debt Securities, Held-to-Maturity, Restricted Net loans Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Treasury stock, at cost (7,809,650 common shares at June 30, 2026 and 4,260,729 common shares at December 31, 2025) Treasury Stock, Value New Authoritative Accounting Guidance Issued but Not Yet Adopted New Accounting Pronouncements, Policy [Policy Text Block] Amortization of actuarial net losses Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Including Portion Attributable to Noncontrolling Interest [Member] Total long-term borrowings Long-Term Debt Term Extension and Principal Forgiveness Extended Maturity and Principal Forgiveness [Member] Year three, two years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Net change in: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Net impairment (net recovery) Mortgage Servicing Rights (MSR) Impairment (Recovery) Less than 12 Months Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Amortization of tax credit investments: Affordable Housing Tax Credits, Amortization [Abstract] Affordable Housing Tax Credits, Amortization [Abstract] Cash Collateral Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset Due after five years through ten years Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Security Exchange Name Security Exchange Name Interest Rate Derivatives Designated as Hedges Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Total liabilities Liabilities, Fair Value Disclosure 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, after Year One through Five Number of shares authorized (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized More than 12 Months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Other tax credit investment losses Amortization Of Other Tax Credit Investment Losses Amortization Of Other Tax Credit Investment Losses Interest Income Interest Income (Expense), Operating [Abstract] Name Outstanding Recovery, Individual Name Accumulated net after-tax gains related to effective cash flow hedges AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Financial Services, Banking and Thrift [Abstract] Financial Services, Banking and Thrift 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] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Amounts reclassified to earnings Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Total Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value Interest on long-term borrowings and junior subordinated debentures Interest Expense, Long-Term Debt Due in one year Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Net interest margin Net Interest Margin Net Interest Margin Total OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax Supplemental schedule of non-cash investing activities: Noncash Investing and Financing Items [Abstract] Time Interest Expense, Time Deposits Scheduled Maturities of Time Deposits Time Deposit Maturities [Table Text Block] Defined Benefit Pension and Postretirement Benefit Plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Diluted weighted average number of common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Entity Emerging Growth Company Entity Emerging Growth Company Residential mortgage and consumer loans secured by residential real estate properties Mortgage Loans in Process of Foreclosure, Amount Loans Total Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Underlying Security Market Price Change Underlying Security Market Price Change, Percent Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Gross Unrealized Losses Total Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss Short-term borrowings Short-term borrowings Short-Term Debt Other Liabilities Gross Amounts Recognized Derivative Liability, Subject to Master Netting Arrangement, before Offset Savings, NOW and money market Interest Expense, NOW Accounts, Money Market Accounts, and Savings Deposits Provision (credit) for unfunded credit commitments Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) Accrued interest receivable Accrued Investment Income Receivable Accrued interest on securities held to maturity Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss Treasury Stock Treasury Stock, Common [Member] Intangible Asset, Goodwill and Other [Abstract] Intangible Asset, Goodwill and Other [Abstract] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Net Amounts Presented Derivative Liability, Subject to Master Netting Arrangement, after Offset Organization, Consolidation and Presentation of Financial Statements [Abstract] Proceeds from sales of loans held for sale at fair value Proceeds from Sale, Loan, Held-for-Sale Principal Forgiveness Principal Forgiveness [Member] Subordinated debt carrying value Subordinated Long-Term Debt, Noncurrent Year three, gross loan charge-offs Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff Collateral Held [Domain] Collateral Held [Domain] All Executive Categories All Executive Categories [Member] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Other comprehensive (loss) income, net of tax: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Interest Rate Swaps Entered In 2024 Interest Rate Swaps Entered In 2024 [Member] Interest Rate Swaps Entered In 2024 Financing receivable, modified, increase (decrease) from modification Financing Receivable, Modified, Increase (Decrease) from Modification Defined benefit pension and postretirement benefit plans Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract] Accounting Changes and Error Corrections [Abstract] Accounting Changes and Error Corrections [Abstract] Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Operating Segments Segment Reporting [Text Block] Maturities, calls and principal repayments Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Minimum Minimum [Member] Less than 12 Months Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value Repayments of subordinated debt Repayments of Subordinated Debt Unpaid principal balances of loans held for sale Loan, Held-for-Sale or Securitization or Asset-Backed Financing Arrangement, Principal Outstanding Liabilities Liabilities [Abstract] Income Statement Location [Axis] Location, Statement of Income, Balance [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] 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] Accrued interest Financing Receivable, Accrued Interest, after Allowance for Credit Loss Total long-term FHLB advances Advance from Federal Home Loan Bank Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) [Line Items] Loans originated and purchased, net of principal collected Proceeds (Payments) from Loan and Lease Originations and Principal Collections Proceeds (Payments) from Loan and Lease Originations and Principal Collections Schedule of Held-to-maturity Securities [Line Items] Schedule of Held-to-Maturity Securities [Line Items] Due after ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Individually evaluated for credit losses Financing Receivable, Individually Evaluated for Credit Loss Exercise Price Award Exercise Price Held to maturity debt securities (net of allowance for credit losses of $744 at June 30, 2026 and $734 at December 31, 2025) Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Recurring fair value measurements Fair Value, Recurring [Member] Wealth management and trust fees Investment Advisory, Management and Administrative Service [Member] Segment Reporting [Line Items] Segment Reporting [Line Items] Commercial Banking Commercial Lending [Member] Commercial lending member Document Quarterly Report Document Quarterly Report 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] Obligations of states and political subdivisions US States and Political Subdivisions Debt Securities [Member] Special Mention Special Mention [Member] Year four, gross loan charge-offs Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff Repayments of long-term borrowings Repayments of Long-Term Debt Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity Component [Domain] Equity Component [Domain] Foreign currency derivatives Foreign Exchange Contract [Member] Net loans (3) Loans Receivable, Fair Value Disclosure Derivatives And Hedging Activities [Line Items] Derivatives And Hedging Activities [Line Items] Derivatives And Hedging Activities [Line Items] Adoption Date Trading Arrangement Adoption Date 2030 Time Deposit Maturities, Year Four Junior subordinated debentures issued to capital trusts Subordinated Debt Obligations, Fair Value Disclosure Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Equity securities Equity securities Equity Securities, FV-NI, Current Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Total held to maturity debt securities Fair Value Total Debt Securities, Held-to-Maturity, Fair Value Taxable Interest Income, Securities, Operating, Taxable Other, net Proceeds from (Payment for) Other Financing Activity Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Interest on short-term borrowings Interest Expense, Short-Term Borrowings Commercial and industrial Commercial and industrial Commercial Portfolio Segment [Member] Consumer Banking Consumer Lending [Member] Consumer Lending [Member] Non-Cumulative Perpetual Preferred Stock, Series C Non-Cumulative Perpetual Preferred Stock, Series C [Member] Non-Cumulative Perpetual Preferred Stock, Series C Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Financial Asset, Aging [Domain] Financial Asset, Aging [Domain] Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] All Adjustments to Compensation All Adjustments to Compensation [Member] Treasury and Corporate Other Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Core Deposits Core deposits Core Deposits [Member] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Collateral dependent loans amortized cost Collateral Dependent Impaired Loans Carrying Value Collateral Dependent Impaired Loans Carrying Value Residential mortgage Residential Mortgage Residential Portfolio Segment [Member] Substandard Substandard [Member] Income Statement [Abstract] Income Statement [Abstract] Shareholders’ Equity Equity, Attributable to Parent [Abstract] Document Transition Report Document Transition Report Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Other Intangible Assets Intangible Asset, Finite-Lived [Table Text Block] Cash dividends declared: Dividends, Cash [Abstract] City Area Code City Area Code Name Forgone Recovery, Individual Name 2026 Federal Home Loan Bank, Advance, Maturity, Remainder of Fiscal Year Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Credit Rating, Agencies [Domain] Credit Rating, Agencies [Domain] [Domain] for Credit Rating, Agencies [Axis] Collectively evaluated for credit losses Financing Receivable, Collectively Evaluated for Credit Loss Lease liabilities Operating And Finance Lease, Liability Operating And Finance Lease, Liability Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Interest and dividends on investment securities: Interest and Dividend Income, Securities, by Taxable Status [Abstract] Total interest income Interest income Interest and Dividend Income, Operating Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Impairment loss Debt Securities, Available For Sale, Impairment Debt Securities, Available For Sale, Impairment Total Fair Value, Net Asset (Liability) Other assets Increase (Decrease) in Other Operating Assets Net change in deposits Increase (Decrease) in Deposits Non-Cumulative Perpetual Preferred Stock, Series B Non-Cumulative Perpetual Preferred Stock, Series B [Member] Non-Cumulative Perpetual Preferred Stock, Series B Stock-based compensation expense Share-Based Payment Arrangement, Expense Gross Amounts Offset Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Measurement Basis [Axis] Measurement Basis [Axis] Proceeds from sales of loans not originated for sale Proceeds from Sale, Loan, Held-for-Investment Reporting Unit [Axis] Reporting Unit [Axis] Total investment securities Investments Average grant date fair value (usd per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Due in one year Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Subsequent Event Type [Domain] Subsequent Event Type [Domain] Revolving Loans Amortized Cost Basis Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff Series A Preferred Series A Series A Preferred Stock [Member] Unrealized Gains and Losses on AFS Securities AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Net (losses) gains arising during the period OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax 2029 Time Deposit Maturities, Year Three Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Current Reporting Status Entity Current Reporting Status Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Adjustments to reconcile net income to net cash provided by (used in) operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Weighted Average Term Extension (in months) Financing Receivable, Modified, Weighted-Average Term Increase from Modification More than 12 Months Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Premises and equipment, net Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Core Deposits and Other Core Deposits and Other Intangible Assets [Member] Core Deposits and Other Intangible Assets [Member] Financial Instruments [Domain] Financial Instruments [Domain] Total amortization of tax credit investments recorded in non-interest expense Amortization Of Tax Credit Investments Amortization Of Tax Credit Investments Weighted-average remaining expected life of residential mortgage-backed securities available for sale, years Weighted Average Remaining Expected Life Of Residential Mortgage Backed Securities Available For Sale Weighted-average remaining expected life of residential mortgage-backed securities available for sale Contractual Maturities of Debt Securities Held to Maturity Investment Securities Contractual Maturity Of Debt Securities [Table Text Block] Contractual maturities of an entity's held to maturity investments as well as any other information pertinent to the investments. Year five, four years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Other assets Derivative Asset Intangible Asset, Finite-Lived, Class [Axis] Intangible Asset, Finite-Lived, Class [Axis] Offsetting [Abstract] Offsetting [Abstract] Goodwill and Other Intangible Assets Intangible Asset and Goodwill [Text Block] Underlying Securities Award Underlying Securities Amount Fair Value Estimate of Fair Value Measurement [Member] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Term extension and interest rate reduction Extended Maturity and Interest Rate Reduction [Member] Obligations of states and state agencies Income Tax Jurisdiction, Domestic State and Local [Member] Preferred Stock Preferred Stock [Member] Segment Reporting [Table] Segment Reporting [Table] Number of shares available for grant (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Total Principal Forgiveness (in thousands) Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount Number of instruments held Derivative, Number of Instruments Held Home equity Home Equity Loan [Member] Allowance for unfunded credit commitments Off-Balance-Sheet, Credit Loss, Liability All Trading Arrangements All Trading Arrangements [Member] Less than 12 Months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Wealth Management Wealth Management [Member] Wealth Management [Member] Current Fiscal Year End Date Current Fiscal Year End Date Amortized Cost of Debt Securities Held to Maturity by External Credit Rating Debt Securities, Held-to-Maturity, Credit Quality Indicator [Table Text Block] Amortized Cost Amortized cost of held to maturity debt securities Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss Lease right of use assets Increase (Decrease) Right-of-Use of Asset, Lease Increase (Decrease) Right-of-Use of Asset, Lease Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Provision for loan losses Provision (credit) for loan losses Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal) Derivative [Line Items] Derivative [Line Items] Fair Value Debt Securities, Available-for-Sale, Unrealized Gain (Loss) [Abstract] 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] Loans Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Current Common stock, cash dividends declared (usd per share) Common Stock, Dividends, Per Share, Declared Entity File Number Entity File Number Net change in short-term borrowings Proceeds from (Repayments of) Short-Term Debt Effect of stock incentive plan, net Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Contractual Maturities of Debt Securities Available for Sale Investments Classified by Contractual Maturity Date [Table Text Block] Death benefit proceeds from bank owned life insurance Proceeds from Life Insurance Policy Amount of gain reclassified from accumulated other comprehensive loss to interest income Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Preferred stock, cash dividends declared (usd per share) Preferred Stock, Dividends Per Share, Declared Measure: Measure [Axis] Interest bearing: Interest-Bearing Deposit Liabilities [Abstract] Treasury stock, shares (in shares) Treasury Stock, Common, Shares Tax-exempt Interest Income, Securities, Operating, Tax Exempt Foreclosed Real Estate Expense Foreclosed Real Estate Expense Equity Components [Axis] Equity Components [Axis] Non-accrual loans collateralized Non-Accrual Loans Collateralized Non-Accrual Loans Collateralized Entity Interactive Data Current Entity Interactive Data Current Due after one year through five years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Amounts reclassified to earnings Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Entity Small Business Entity Small Business Total comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Weighted average amortization period, years Intangible Asset, Finite-Lived, Acquired, Weighted-Average Amortization Period Net Interest Income Interest and fees on loans Net interest income Interest Income (Expense), Operating MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Net Amounts Presented Derivative Asset, Subject to Master Netting Arrangement, after Offset Document Type Document Type Due after ten years Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 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] Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Allowance for credit losses for available for sale debt securities Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Proceeds from issuance of long-term borrowings, net Proceeds from Issuance of Long-Term Debt Local Phone Number Local Phone Number Income Before Income Taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Amortization of actuarial net losses reclassified to earnings Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from Actuarial Losses, after Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from Actuarial Losses, after Tax Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] 2030 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Executive Category: Executive Category [Axis] Affordable Housing Tax Credit Investments, Other Tax Credit Investments, and Related Unfunded Commitments Affordable Housing Tax Credit Investments, Other Tax Credit Investments, and Related Unfunded Commitments [Table Text Block] Affordable Housing Tax Credit Investments, Other Tax Credit Investments, and Related Unfunded Commitments [Table Text Block] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Gains on sales of loans, net Gains on sales of loans, net Gains on sales of loans, net Gain (Loss) on Sales of Loans, Net Supplemental disclosures of cash flow information: Supplemental Cash Flow Information [Abstract] Amounts reclassified to earnings Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Accrued expenses and other liabilities Accounts Payable and Accrued Liabilities PEO Name PEO Name Unrealized Gains and Losses on Derivatives Unrealized gains on derivatives (cash flow hedges) before tax Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] More than 12 Months Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value Liabilities Financial liabilities Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Federal and state income taxes Income Tax Paid, before Refund Received Other segment items Segment Reporting, Other Segment Item, Amount Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Cash and due from banks Cash and Due from Banks Current Loans Financial Asset, Not Past Due [Member] Non-designated hedge interest rate swaps and credit derivatives Interest Rate Derivative Instruments Not Designated as Hedging Instruments [Abstract] Fair Value Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value [Abstract] Dividends on preferred stock Preferred Stock Dividends, Income Statement Impact Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Bank owned life insurance Bank Owned Life Insurance Income Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Net Amount Derivative Liability, Subject to Master Netting Arrangement, after Offset and Deduction Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] 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] Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Debt Instrument [Axis] Debt Instrument [Axis] Measurement Frequency [Domain] Measurement Frequency [Domain] Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Interest Expense Interest Expense, Operating and Nonoperating [Abstract] Salary and employee benefits expense Labor and Related Expense Maturities, calls and principal repayments Proceeds from Maturities, Prepayments and Calls of Held-to-Maturity Securities Short-term borrowings Short-Term Debt [Member] Consolidated Statements of Financial Condition Related to Fair Value of Derivative Financial Instruments Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Basic (usd per share) Earnings Per Share, Basic Insider Trading Arrangements [Line Items] Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Liability Increase (Decrease) Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) Schedule of Short-Term Borrowings Schedule of Short-Term Debt [Table Text Block] Bank owned life insurance Bank Owned Life Insurance 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] Real Estate, Type of Property [Axis] Real Estate, Type of Property [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Charged-off loans recovered Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Cover [Abstract] Year two, gross loan charge-offs Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff Equity Awards Adjustments Equity Awards Adjustments [Member] Hedging Relationship [Domain] Hedging Relationship [Domain] Pension settlement gain reclassified to earnings Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from Pension Settlements, after Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from Pension Settlements, after Tax Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Revolving Loans Converted to Term Loans Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff Pass Pass [Member] Schedule of Loan Portfolio Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Subordinated Notes Due June 1, 2036 Subordinated Notes Due June 1, 2036 [Member] Subordinated Notes Due June 1, 2036 Junior subordinated debentures issued to capital trusts Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust Trust preferred securities Other Debt Obligations [Member] Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset Increase (Decrease) Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized USAmeriBancorp, Inc. USAmeriBancorp, Inc. [Member] USAmeriBancorp, Inc. Hedging Designation [Domain] Hedging Designation [Domain] Class of Stock [Domain] Class of Stock [Domain] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] (Credit) provision for credit losses for available for sale and held to maturity securities Debt Securities, Available For Sale And Held-to-Maturity, Credit Loss Expense (Reversal) Debt Securities, Available For Sale And Held-to-Maturity, Credit Loss Expense (Reversal) (Credit) provision for credit losses Debt Securities, Held-to-Maturity, Excluding Accrued Interest, Credit Loss Expense (Reversal) Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Other tax credit investment impairment losses Amortization Of Other Tax Credit Impairment Losses Amortization Of Other Tax Credit Impairment Losses Debt Securities, Held-to-Maturity, Allowance for Credit Loss Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Table Text Block] Tax Credit Investments Income Tax Disclosure [Text Block] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Affordable housing tax credits and other tax benefits Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, before Amortization Expense Entity Filer Category Entity Filer Category Total Debt Securities, Available-for-Sale, Unrealized Loss Position Subordinated Notes Due June 2031 Subordinated Notes Due June 2031 [Member] Subordinated Notes Due June 2031 Offsetting Liabilities Offsetting Liabilities [Table Text Block] Automobile Automobile Loan [Member] Pension settlement gain Accumulated Defined Benefit Plans Adjustment, Pension Settlement Gain [Member] Accumulated Defined Benefit Plans Adjustment, Pension Settlement Gain FHLB advances 2027 Federal Home Loan Bank, Advance, Maturity, Year One Financial Asset, Aging [Axis] Financial Asset, Aging [Axis] Derivatives not designated as hedging instruments: Not Designated as Hedging Instrument [Member] Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items] Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items] Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items] Long-term borrowings Long Term Borrowings Fair Value Disclosure Long term borrowings fair value disclosure Other liabilities Derivative Liability Entity Address, Address Line One Entity Address, Address Line One Impairment of core deposits and other intangibles Intangible Asset, Finite-Lived, Impairment Loss Lease right of use assets obtained in exchange for operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Fair Value Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] Income tax expense Tax effect Income Tax Expense (Benefit) Fair value hedge interest rate swaps Fair Value Hedging [Member] Offsetting Liabilities Offsetting Derivative Liabilities [Abstract] Total Total Loans charged-off Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff New Authoritative Accounting Guidance Accounting Standards Update and Change in Accounting Principle [Text Block] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent, Net of Tax [Roll Forward] Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Statement [Table] Statement [Table] Year two, fiscal year before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Past Due, Non-Accrual and Current Loans by Loan Portfolio Class Financing Receivable, Nonaccrual [Table Text Block] Long-term borrowings Long Term Debt, Excluding Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust Long Term Debt, Excluding Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust Summary of Allowance for Credit Losses Schedule Of Allowance For Credit Losses [Table Text Block] Schedule Of Allowance For Credit Losses [Table Text Block] Gross Amounts Recognized Derivative Asset, Subject to Master Netting Arrangement, before Offset Loans held for sale Loans held for sale Loan, Held-for-Sale, Fair Value Disclosure Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]