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Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis, Derivative Assets And Liabilities, Net Mortgage Derivative Gain (Loss) Included In Earnings. 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Fair Value, Measurements, Recurring Fair Value, Recurring [Member] Two Thousand Fourteen Subordinated Notes Two Thousand Fourteen Subordinated Notes [Member] Two Thousand Fourteen Subordinated Notes [Member] Options Exercisable, Weighted Average Exercise Price (in usd per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Finance lease cash flows Finance Lease, Payments Finance Lease, Payments Leases Leases of Lessee Disclosure [Text Block] Number of Loans Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Document Fiscal Year Focus Document Fiscal Year Focus Cash Flow From Operating Activities Net Cash Provided by (Used in) Operating Activities [Abstract] (Repayment) proceeds of finance lease principal Finance Lease, Principal Payments Forward commitments on residential mortgage loans Derivative Financial Instruments, Liabilities [Member] Disposal Group, Including Discontinued Operation, Consideration Disposal Group, Including Discontinued Operation, Consideration Potential Problem [Member] Potential Problem [Member] Potential problem. 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Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities. 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Schedule of Available-for-sale and Held-to-maturity Securities [Table] Schedule of Available-for-sale and Held-to-maturity Securities [Table] Schedule of Available-for-sale and Held-to-maturity Securities Number of Businesses Acquired Number of Businesses Acquired Changes in fair value of asset Servicing Asset at Fair Value, Other Changes in Fair Value Individually evaluated loans(b) Loans Receivable, Fair Value Disclosure Performance/Service Based RSAs, RSA, Performance/Service Based RSAs, RSA, [Member] Performance/Service Based RSAs, RSA, RSU Basic Weighted average common shares outstanding Weighted Average Number of Shares Outstanding, Basic Debt Instrument, Collateral Amount Debt Instrument, Collateral Amount Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Mortgage banking, net Mortgage Banking [Member] Financing Receivable, Troubled Debt Restructuring Financing Receivable, Troubled Debt Restructuring Summary of lending-related and other commitments Lending Related And Other Commitments [Table Text Block] Lending related and other commitments. 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financing to private and public companies FNMA/FHLMC FNMA / FHLMC FNMA/FHLMC [Member] FNMA/FHLMC [Member] Fair Value, Inputs, Level 2 Fair Value, Inputs, Level 2 [Member] Current Fiscal Year End Date Current Fiscal Year End Date Federal Home Loan Bank Stock Federal Home Loan Bank Stock Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Other intangible assets, net Intangible Assets, Net (Excluding Goodwill) Financing Receivable Restructurings [Axis] Financing Receivable Restructurings [Axis] Stock-based compensation expense, net APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Interest and dividends on investment securities Interest and Dividend Income, Securities, by Taxable Status [Abstract] Residential mortgage Residential Portfolio Segment [Member] Loan composition Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Derivative assets Offsetting Derivative Assets [Abstract] Provision for credit losses Provision for Loan and Lease Losses Unpaid Principal Balance(b) Financing Receivable, Troubled Debt Restructuring, Premodification Financial assets Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Derivative Liability Notional Amount, Terminated Derivative Liability Notional Amount, Terminated Derivative Liability Notional Amount, Terminated Provision for credit losses Provision for credit losses Provision for Loan, Lease, and Other Losses Short-term funding, fair value Short-Term Debt, Fair Value Mortgage Servicing Rights Servicing Contracts [Member] Finance Lease, Weighted Average Remaining Lease Term Finance Lease, Weighted Average Remaining Lease Term Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Mortgage banking(a)(b) Foreign currency exchange forwards Interest Rate Lock Commitments [Member] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] 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Federal Reserve Bank Stock [Member] Federal Reserve Bank Stock [Member] Federal Reserve Bank Stock Entity Central Index Key Entity Central Index Key Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Estimated future amortization expense Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Losses (gains) on sales of investment securities, net Marketable Securities, Gain (Loss) Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Number of Loans Financing Receivable, Modifications, Number of Contracts City Area Code City Area Code Commercial and industrial Commercial and Industrial Sector Commercial and Industrial Sector [Member] Assets Assets [Abstract] Net change in other assets and other liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net A Fitch, A Rating [Member] Servicing Asset Servicing Asset Unrealized losses and fair value of available for sale and held to maturity securities, by investment category and time length Schedule of Unrealized Loss on Investments [Table Text Block] Fair Value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] Interest expense Interest Expense [Abstract] Short-term Funding [Abstract] Short-Term Debt [Abstract] Asset Class [Axis] Asset Class [Axis] Equipment Equipment Expense Repayments of Senior Debt Repayments of Senior Debt RemainingContractualMaturityoftheSecuritiesSoldUnderAgreementtoRepurchase [Table] RemainingContractualMaturityoftheSecuritiesSoldUnderAgreementtoRepurchase [Table] Remaining Contractual Maturity of the Securities Sold Under Agreement to Repurchase [Table] Interest Rate Contract Interest Rate Contract [Member] Total noninterest expense Noninterest expense Noninterest Expense Balance at beginning of period Balance at end of period Off-Balance Sheet, Credit Loss, Liability Off-Balance-Sheet, Credit Loss, Liability Troubled debt restructurings subsequent redefault Troubled Debt Restructurings Subsequent Default [Table Text Block] Table showing troubled debt restructurings that subsequently redefaulted during the period Weighted Average [Member] Weighted Average [Member] 2023 Finite-Lived Intangible Asset, Expected Amortization, Year One Total consumer Consumer Portfolio Segment [Member] Calculations for basic and diluted earnings per common share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Gross (losses) on AFS securities Investment securities (gains), net Debt Securities, Available-for-Sale, Realized Loss Brokered CDs and other time deposits, fair value Brokered cds and other time deposits fair value Brokered cds and other time deposits fair value Postretirement Plan Other Postretirement 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Investments, Fair Value Disclosure Investments, Fair Value Disclosure Total fair value of unrealized losses on held to maturity securities Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value Off-Balance Sheet, Credit Loss, Liability [Roll Forward] Off-Balance-Sheet, Credit Loss, Liability [Roll Forward] Receivable [Domain] Receivable [Domain] Net decrease (increase) in loans Payments for (Proceeds from) Loans and Leases Interest rate-related instruments — customer and mirror Interest rate-related and other instruments — customer and mirror, net Interest Rate Related Instruments Customer and Mirror [Member] Interest rate related instruments customer and mirror. Proceeds from Proceeds from Investing Activities [Abstract] Changes in certain assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract] Junior Subordinated Debentures Issued Junior Subordinated Debentures Issued Junior subordinated debentures issued. Less: Cash collateral pledged/received Derivative Asset, Collateral, Obligation to Return Cash, Offset Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset FDIC assessment Federal Deposit Insurance Corporation Premium Expense Servicing Asset At Amortized Value Net Servicing Asset At Amortized Value (a) Net amortized carrying amount (balance) as of the balance sheet date of an asset representing net future revenues from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs and allowances related to servicing arrangements. Financial Asset, Period Past Due [Domain] Financial Asset, Aging [Domain] Net amortization of tax credit investments Other Depreciation and Amortization Statistical Measurement [Domain] Statistical Measurement [Domain] Proceeds from sales of investment securities Proceeds from Sale and Maturity of Marketable Securities Agency Securities Agency Securities [Member] Interest on deposits Interest Expense, Deposits Recoveries, net Valuation Allowance for Impairment of Recognized Servicing Assets, Additions (Deductions) for Expenses (Recoveries) Valuation Allowance for Impairment of Recognized Servicing Assets, Additions (Deductions) for Expenses (Recoveries) Total net periodic pension cost Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Purchase of treasury stock, Treasury Stock, Value, Acquired, Cost Method Net income Net income Net income Net Income (Loss) Attributable to Parent Balance Sheet Offsetting Balance Sheet Offsetting Disclosure [Text Block] Balance Sheet Offsetting Disclosure Available for Sale, 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 Other Intangibles Other Intangible Assets [Member] Other Debt securities Debt Securities [Member] Three months ending December 31, 2022 Finance Lease, Liability, to be Paid, Remainder of Fiscal Year Cumulative Effect, Period Of Adoption [Axis] Cumulative Effect, Period of Adoption [Axis] Amortization of prior service cost Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Distributed earnings to common shareholders Distributed Earnings Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage Additional operating lease terms Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract US States and Political Subdivisions Debt Securities [Member] US States and Political Subdivisions Debt Securities [Member] FHLB advances prepayment FHLB advances prepayment FHLB advances prepayment Other Noninterest Income, Other Operating Income Summary of core deposit intangibles and other intangibles Finite-Lived Intangible Assets, Net [Abstract] Derivative Instrument [Axis] Derivative Instrument [Axis] Less: Cash collateral pledged/received Derivative Liability, Collateral, Right to Reclaim Cash, Offset Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset Three months ending December 31, 2022 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Goodwill [Line Items] Goodwill [Line Items] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 1 [Member] Risk Management and Shared Services Risk Management and Shared Serivies [Member] Risk Management and Shared Serivies Other interest Other Interest and Dividend Income Investments by Secondary Categorization [Domain] Investments by Secondary Categorization [Domain] Debt Securities, Held-to-maturity, Nonaccrual, Interest Income Debt Securities, Held-to-Maturity, Nonaccrual, Interest Income Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Agency mortgage-related securities Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] Derivative Asset Net Amounts Presented on the Consolidated Balance Sheets Trading assets Derivative Asset Summary of restricted stock awards activity (excluding salary shares) Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Accrued expenses and other liabilities Other Liabilities Fair value of mortgage servicing rights Mortgage servicing rights(e) Servicing Asset at Amortized Cost, Fair Value HTM securities Payments to Acquire Held-to-Maturity Securities Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Receivables [Abstract] Receivables [Abstract] Total noninterest income Noninterest income(a) Noninterest Income Liability Class [Axis] Liability Class [Axis] Entity Listings, Exchange [Axis] Entity Listings, Exchange [Axis] Loans Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Capitalized mortgage servicing rights Additions Servicing Asset at Fair Value, Additions Issuance of preferred stock Stock Issued During Period, Value, New Issues Accounting Changes and Error Corrections [Abstract] Equity Securities Without Readily Determinable Fair Value Amount [Roll Forward] Equity Securities Without Readily Determinable Fair Value Amount [Roll Forward] Equity Securities Without Readily Determinable Fair Value Amount [Roll Forward] HTM investment securities Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract] Financing Receivable, Revolving, Converted To Term Loan Financing Receivable, Revolving, Converted to Term Loan Preferred stock(b) Dividends, Preferred Stock, Cash Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Preferred shares issued and outstanding Preferred Stock, Shares Issued Financial Asset, Period Past Due [Axis] Financial Asset, Aging [Axis] Financing Receivable, Past Due [Table] Financing Receivable, Past Due [Table] Additions Servicing Asset at Amortized Cost, Additions Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Segments [Axis] Segments [Axis] Unrealized losses on held to 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Real Estate Companies, Investment in Real Estate, Write-down or Reserve, Amount Summary of activity in accumulated other comprehensive income (loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Amortization of prior service cost Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax Total assets Assets Financing Receivable, Nonaccrual, Interest Income Financing Receivable, Nonaccrual, Interest Income Investment securities held to maturity Debt Securities, Held-to-Maturity [Table Text Block] Earnings per common share Earnings Per Share [Abstract] Earnings Per Share [Abstract] Financing Receivable Restructurings [Domain] Financing Receivable Restructurings [Domain] Financing Receivable Restructurings [Domain] Income tax benefit OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax HTM investment securities, net, at amortized cost Held To Maturity Securities Net Of Allowance For Credit Losses Held To Maturity Securities Net Of Allowance For Credit Losses Equity securities with readily determinable fair values, Fair Value Equity Securities, FV-NI, Current Schedule of Held-to-maturity Securities [Line Items] Schedule of Held-to-Maturity Securities [Line Items] Performance-based Restricted Stock Award Performance Shares [Member] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Mortgage loans originated and acquired for sale Payments for Origination and Purchases of Loans Held-for-sale Corporate and Commercial Specialty Corporate and Commercial Specialty [Member] Corporate and Commercial Specialty [Member] Held to Maturity, 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 Exercised Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Long-term funding, fair value Long-Term Debt, Fair Value Total Financing Receivable, before Allowance for Credit Loss Segments [Domain] Segments [Domain] Cash dividends on preferred stock Payments of Ordinary Dividends, Preferred Stock and Preference Stock Earnings Per Common Share Earnings Per Share [Text Block] Commodity contracts Forward commitments (mortgage) Forward Contracts [Member] Financing Receivable, Troubled Debt Restructuring [Domain] Class of Financing Receivable, Type of Borrower [Domain] Summarized details of Loans Summarized Details Of Loans [Abstract] Summarized details of Loans. Derivative Instruments Derivative Impact on Performance [Line Items] [Line Items] for Derivative Impact on Performance [Table] Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Interest rate lock commitments to originate residential mortgage loans held for sale Derivative Financial Instruments, Assets [Member] Total fair value of vested stock options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value Equity Award Award Type [Domain] Remaining Contractual Maturity of the Securities Sold Under Agreements to Repurchase [Abstract] Remaining Contractual Maturity of the Securities Sold Under Agreements to Repurchase [Abstract] Remaining Contractual Maturity of the Securities Sold Under Agreements to Repurchase [Abstract] Commercial real estate — investor Commercial Real Estate Investor Portfolio Segment [Member] Commercial real estate - investor loans. Financing Receivable, Originated Two Years before Latest Fiscal Year Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year Financing Receivable, Troubled Debt Restructuring [Line Items] Financing Receivable, Troubled Debt Restructuring [Line Items] Present value of lease payments Lease, Liability Lease, Liability Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed Card-based fees Revenue from Contract with Customer, Including Assessed Tax Held to Maturity, 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 Entity Address, City or Town Entity Address, City or Town Interest income Interest and Dividend Income, Operating [Abstract] Commercial Real Estate Commercial Real Estate [Member] Interests Continued to be Held by Transferor in Financial Assets that It has Securitized or Servicing Assets or Liabilities Relating to Assets that It has Securitized [Abstract] Interests Continued to be Held by Transferor in Financial Assets that It has Securitized or Servicing Assets or Liabilities Relating to Assets that It has Securitized [Abstract] Branch Sales Branch Sales Branch Sales Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Financing Receivable, Originated in Current Fiscal Year Financing Receivable, Year One, Originated, Current Fiscal Year Schedule of Goodwill Information [Table] Schedule of Goodwill Information [Table] Schedule of Goodwill Information Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] RAP Pension Plan [Member] Adjustments for Change in Accounting Principle [Axis] Change in Accounting Principle, Type [Axis] Schedule Of Unfunded Commitments [Table Text Block] Schedule Of Unfunded Commitments [Table Text Block] Schedule of allowance for loans and lease losses table text block. Schedule of Assumptions for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Table] Schedule of Assumptions for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Table] Schedule Of Lending Related And Other Commitments [Table] Schedule Of Lending Related And Other Commitments [Table] Schedule Of Lending Related And Other Commitments. Change in fair value model assumptions Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions Net Charge offs Financing Receivable Allowance For Credit Loss Net Recovery (Loss) Financing Receivable Allowance For Credit Loss Net Recovery (Loss) Ytd Restructured Loans Still On Nonaccrual Ytd Restructured Loans Still On Nonaccrual Ytd Restructured Loans Still On Nonaccrual Balance at beginning of period Balance at end of period Allowance for Credit Losses on Loans Allowance for Credit Losses on Loans Equipment Equipment [Member] Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Amortized Cost Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date [Abstract] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Nonaccrual Loan [Member] Nonaccrual Loan [Member] Nonaccrual loan. Entity Information [Line Items] Entity Information [Line Items] Notional Amount Derivative Liability, Notional Amount Balance Sheet Recording of Fair Value Hedge [Table] Balance Sheet Recording of Fair Value Hedge [Table Text Block] Balance Sheet Recording of Fair Value Hedge [Table] Common stock issued Common Stock Issued [Abstract] Common stock issued. Total revenue Revenues Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions Investment Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Change in MSRs valuation(a) Mortgage Servicing Rights (MSR) Impairment (Recovery) Mortgage Servicing Rights (MSR) Impairment (Recovery) Noninterest expense Noninterest Expense [Abstract] Other intangible amortization Amortization of other intangible assets Amortization of Intangible Assets Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activities 2025 Lessee, Operating Lease, Liability, to be Paid, Year Three Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Debt, Long-Term and Short-Term, Combined Amount Debt, Long-Term and Short-Term, Combined Amount Asset Other Assets [Member] Other Assets [Member] Defined Benefit Pension and Postretirement Obligations Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Additional operating leases Lessee, Operating Lease, Lease Not yet Commenced, Liability Lessee, Operating Lease, Lease Not yet Commenced, Liability Total consumer Consumer Loan [Member] Special Mention [Member] Special Mention [Member] Treasury Stock Treasury Stock [Member] Total stockholders’ equity Beginning balance Ending balance Stockholders' Equity Attributable to Parent Derivative and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Forfeited, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Common shareholder dividends Dividends, Common Stock Commercial mortgage-related securities Commercial mortgage-related securities Commercial Mortgage-Backed Securities [Member] Derivative Impact on Performance [Table] Derivative Impact on Performance [Table] Derivative Impact on Performance [Table] Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization US Government-sponsored Enterprises Debt Securities [Member] US Government-sponsored Enterprises Debt Securities [Member] 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Three Sales of AFS and equity securities Proceeds from Sale of Debt Securities, Available-for-Sale Retained Earnings Retained Earnings [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Common stock Dividends, Common Stock, Cash Credit Rating, Not Rated [Domain] Credit Rating, Not Rated [Domain] Credit Rating, Not Rated Common Stock Common Stock [Member] Number of Reportable Segments Number of Reportable Segments Lease, Cost and Cash Flows Lease, Cost [Table Text Block] Revenue recognition 606 Revenue Recognition 606 [Text Block] Revenue Recognition 606 [Text Block] Statement [Table] Statement [Table] Loans Sold To Outside Investors Original Amount Loans Sold To Outside Investors Original Amount Loans sold to outside investors original amount Vested, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Acquisition of Bank Mutual Stock Issued During Period, Value, Acquisitions Commercial letters of credit(a) Letter of Credit [Member] Statistical Measurement [Axis] Statistical Measurement [Axis] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Disposal Group Name [Axis] Disposal Group Name [Axis] Derivative Instruments Not Designated as Hedging Instruments [Abstract] Derivative Instruments Not Designated as Hedging Instruments [Abstract] Equity Components [Axis] Equity Components [Axis] Home Equity Loan [Member] Home Equity Loan [Member] Balance Sheet Recording of Fair Value Hedge [Table] Balance Sheet Recording of Fair Value Hedge [Table] Balance Sheet Recording of Fair Value Hedge Core Deposit Intangibles Core Deposits [Member] Statement [Line Items] Statement [Line Items] Outstanding Shares, Beginning balance (in shares) Outstanding Shares, Ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Gross carrying amount at the beginning of period Finite-Lived Intangible Assets, Gross Advance from Federal Home Loan Bank [Abstract] Advance from Federal Home Loan Bank [Abstract] Remaining contractual maturity of securities sold under agreements to repurchase Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Table Text Block] Operating lease right-of-use asset Operating Lease, Right-of-Use Asset Goodwill, Impaired, Facts and Circumstances Leading to Impairment Goodwill, Impaired, Facts and Circumstances Leading to Impairment Purchase of preferred stock Stock Repurchased During Period, Value Accumulated Other Comprehensive (Loss) Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) Comprehensive Income (Loss) Note [Text Block] Schedule Of Financing Receivable Table [Table] Schedule Of Financing Receivable [Table] Schedule Of Financing Receivable Table [Table] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Reclassification adjustment for net losses (gains) realized in net income Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax Document Transition Report Document Transition Report Provision for credit losses Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) Local Phone Number Local Phone Number Bank and corporate owned life insurance Bank owned life insurance, fair value Life Insurance, Corporate or Bank Owned, Amount Summary of company's stock option activities Share-Based Payment Arrangement, Option, Activity [Table Text Block] Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Portfolio of residential mortgage loans serviced for others (“servicing portfolio”) Portfolio Of Residential Mortgage Loans Serviced For Others Portfolio of residential mortgage loans serviced for others ("servicing portfolio"). New Accounting Pronouncements Adopted New Accounting Pronouncements, Policy [Policy Text Block] Federal funds sold and securities purchased under agreements to resell Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell, Fair Value Disclosure Length Of Time Held To Maturity Securities Are In Continuous Unrealized Loss Position [Axis] Length Of Time Held To Maturity Securities Are In Continuous Unrealized Loss Position [Axis] Finance lease costs Finance Lease, Cost Finance Lease, Cost Amortization of actuarial loss Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax Adjustments to reconcile net income to net cash provided by operating activities Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Residential Mortgage Loans Sold With Recourse Risk Residential Mortgage Loans Sold With Recourse Risk Residential mortgage loans sold with recourse risk. Goodwill and Other Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Debt Securities, Available-for-sale, Unrealized Loss Debt Securities, Available-for-Sale, Unrealized Loss Operating lease information Lessee, Operating Lease, Information [Table Text Block] Lessee, Operating Lease, Information [Table Text Block] Preferred shares, par value Preferred Stock, Par or Stated Value Per Share 2026 Lessee, Operating Lease, Liability, to be Paid, Year Four Income Statement [Abstract] Income Statement [Abstract] Granted Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Surplus Additional Paid-in Capital [Member] Unrealized (losses) on AFS securities transferred to HTM securities Net unrealized (losses) on AFS securities transferred to HTM securities Net unrealized (losses) on AFS securities transferred to HTM securities Document Fiscal Period Focus Document Fiscal Period Focus Unrealized losses on held to maturity securities, 12 months or more Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Basic Earnings Per Share, Basic [Abstract] Intrinsic value of stock options exercised Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Diluted Diluted weighted average common shares outstanding Weighted Average Number of Shares Outstanding, Diluted Interest and fees on loans Interest and Fee Income, Loans and Leases Noninterest income (out-of-scope of Topic 606)(b) Noninterest Income, Outside of Scope of Topic 606 Noninterest Income, Outside of Scope of Topic 606 Length Of Time Held To Maturity Securities Are In Continuous Unrealized Loss Position [Domain] Length Of Time Held To Maturity Securities Are In Continuous Unrealized Loss Position [Domain] Length Of Time Held To Maturity Securities Are In Continuous Unrealized Loss Position [Domain] Investment securities available for sale Schedule of Available-for-Sale Securities Reconciliation [Table Text Block] Commitments, Off-Balance Sheet Arrangements, and Contingent Liabilities (Textuals) [Line Items] Commitments, Off-Balance Sheet Arrangements, and Contingent Liabilities (Textuals) [Line Items] Commitments, Off-Balance Sheet Arrangements, and Contingent Liabilities. Subordinated Borrowing [Axis] Subordinated Borrowing [Axis] Granted, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Assets and liabilities measured on recurring basis at fair value Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Operating Segments Operating Segments [Member] Operating Segments [Member] Fair Value Inputs Closing Ratio Fair Value Inputs Closing Ratio Represents the percentage of loans currently in a lock position which management estimates will ultimately close. Options exercisable, Aggregate Intrinsic Value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Preferred shares authorized (par value $1.00 per share) Preferred Stock, Shares Authorized Percent of current nonaccrual loans Percent of current nonaccrual loans Undistributed earnings allocated to common shareholders Undistributed Earnings Allocated To Common Shareholders Undistributed earnings allocated to common shareholders Retail and corporate offices Retail and Corporate Offices [Member] Retail and Corporate Offices [Member] Commitments, Off-Balance Sheet Arrangements, Legal Proceedings and Regulatory Matters Commitments and Contingencies Disclosure [Text Block] Foreign currency exchange forwards Interest rate lock commitments (mortgage) Foreign Exchange Forward [Member] Net income available to common equity Net income available to common equity Net Income (Loss) Available to Common Stockholders, Basic Common shares issued Common Stock, Shares, Issued Segment net interest income Segment net interest income Segment net interest income Long-Term Federal Home Loan Bank Advances Long-Term Federal Home Loan Bank Advances Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items] Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items] Schedule of assumptions for fair value as of balance sheet date of assets or liabilities that relate to transferor's continuing involvement 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] Summary of restructured loans Financing Receivable, Troubled Debt Restructuring [Table Text Block] Federal Home Loan Bank and Federal Reserve Bank stocks, at cost FHLB and Federal Reserve Bank stocks Federal Home Loan Bank Stock and Federal Reserve Bank Stock Technology Information Technology and Data Processing Financing Receivable, Originated Five or More Years before Latest Fiscal Year Financing Receivable, Originated, More than Five Years before Current Fiscal Year 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] Derivative liabilities Offsetting Derivative Liabilities [Abstract] Net cash (used in) investing activities Net Cash Provided by (Used in) Investing Activities Legal and professional Professional Fees Allowance Type [Domain] Allowance Type [Domain] Allowance Type Commitments, Off-Balance Sheet Arrangements, and Contingent Liabilities (Detail Texuals) [Table] Commitments, Off-Balance Sheet Arrangements, and Contingent Liabilities (Detail Texuals) [Table] Comprehensive income Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Noninterest-bearing demand, savings, interest-bearing demand, and money market deposits, fair value Deposits Excluding Time Deposits Fair Value Disclosure Fair Value of noninterest-bearing demand, savings, interest-bearing demand, and money market deposits Proceeds from issuance of common stock for stock-based compensation plans Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised Selected segment information Schedule of Segment Reporting Information, by Segment [Table Text Block] Nonaccrual Restructured Loans(a) Nonaccrual Restructured Loans Restructured loans that are on nonaccrual Income tax (expense) Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax Entity Current Reporting Status Entity Current Reporting Status Loans Information [Line Items] Loans Information [Line Items] Loans Information Allowance for Loans Losses and Unfunded Commitments [Member] Allowance for Loans Losses and Unfunded Commitments [Member] Allowance for Loans Losses and Unfunded Commitments 2023 Finance Lease, Liability, to be Paid, Year One Federal funds purchased and securities sold under agreements to repurchase Federal funds purchased and securities sold under agreements to repurchase Federal Funds Purchased and Securities Sold under Agreements to Repurchase Available for Sale Available-for-Sale Securities, Debt Maturities [Abstract] Fair value of unrealized losses on held to maturity securities, less than 12 months Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value Total interest income Interest and Dividend Income, Operating Remaining requisite service periods, extend through Employee Service Share Based Compensation Nonvested Awards Compensation Cost Not Yet Recognized Year For Recognition Employee service share based compensation nonvested awards total compensation cost not yet recognized year for recognition. Stock Options Shares Outstanding, Beginning balance (in shares) Stock Options Shares Outstanding, Ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number 30-59 Days Past Due Financial Asset, 30 to 59 Days Past Due [Member] Credit Rating, Not Rated Credit Rating, Not Rated [Axis] Credit Rating, Not Rated Stockholders' Equity, Other Stockholders' Equity, Other 2024 Finance Lease, Liability, to be Paid, Year Two Other consumer Installment and Credit Cards Portfolio Segment [Member] Installment portfolio segment. Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Premises and equipment, net Property, Plant and Equipment, Net Entities [Table] Entities [Table] Summary of estimated future amortization expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Reductions due to sale Decrease of other intangible assets Finite-Lived Intangible Assets, Period Increase (Decrease) Lending Related Commitments By Type [Domain] Lending Related Commitments Lending related commitments. Other consumer Other Consumer [Member] Installment. Mortgage servicing rights Servicing Asset at Fair Value, Amount [Roll Forward] Purchases of Payments for Investing Activities [Abstract] Long-term Debt Long-Term Debt Forfeited Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Balance Sheet Location [Axis] Balance Sheet Location [Axis] Cash and due from banks Cash and due from banks Cash and Due from Banks Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Securities sold under agreements to repurchase Securities Sold under Agreements to Repurchase Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Schedule of Investment Securities Information [Table] Schedule of Investment Securities Information [Table] Schedule of Investment Securities Information Accumulated other comprehensive (loss) Beginning Balance Ending Balance Accumulated Other Comprehensive Income (Loss), Net of Tax Undistributed earnings allocated to common shareholders Undistributed Earnings (Loss) Available to Common Shareholders, Basic Securities Insured or Guaranteed by Government Authorities [Domain] Securities Insured or Guaranteed by Government Authorities [Domain] Securities Insured or Guaranteed by Government Authorities [Domain] Service-based Restricted Stock Award Share-Based Payment Arrangement [Member] Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Cash paid for income and franchise taxes Income Taxes Paid, Net Three months ending December 31, 2022 Lease, Liability, to be Paid, Remainder of Fiscal Year Lease, Liability, to be Paid, Remainder of Fiscal Year Entity Small Business Entity Small Business Qualified Affordable Housing Investments, Impairment Loss Affordable Housing Project Investment, Write-down, Amount Financing Receivable, Revolving Financing Receivable, Revolving Total estimated amortization expense Finite-Lived Intangible Assets, Net Unvested share-based payment awards Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Notional Amount Derivative Asset, Notional Amount Undistributed earnings allocated to common shareholders Undistributed Earnings (Loss) Available to Common Shareholders, Diluted Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Mortgage Repurchase Reserve Mortgage Repurchase Reserve Mortgage Repurchase Reserve Stock Options Outstanding, Aggregate Intrinsic Value, Beginning balance Stock Options Outstanding, Aggregate Intrinsic Value, Ending balance Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Subordinated Borrowing, Interest Rate Subordinated Borrowing, Interest Rate External Credit Rating, Fitch [Domain] External Credit Rating, Fitch [Domain] Proceeds from long-term FHLB advances Proceeds from FHLBank Borrowings, Financing Activities Long-Term Funding Debt Instrument [Line Items] Operating lease liability Present value of lease payments Operating Lease, Liability Residential loans held for sale Residential Loans Held For Sale Member [Member] Residential Loans Held For Sale Member Recoveries Financing Receivable, Allowance for Credit Loss, Recovery Defined Benefit Plan, Contributions by Employer [Abstract] Defined Benefit Plan, Contributions by Employer [Abstract] Defined Benefit Plan, Contributions by Employer [Abstract] Allowance for unfunded commitments SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Finance Lease, Liability, Payment, Due Total lease payments Finance Lease, Liability, to be Paid Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Repayment of long-term FHLB advances Payments of FHLBank Borrowings, Financing Activities 2024 Finite-Lived Intangible Asset, Expected Amortization, Year Two Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Service charges and deposit account fees Service charges and deposit account fees Deposit Account [Member] The New York Stock Exchange NEW YORK STOCK EXCHANGE, INC. [Member] Granted Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Debt Securities, Available-for-sale, Amortized Cost Available for Sale, Total debt securities Debt Securities, Available-for-Sale, Amortized Cost Loan and foreclosure costs Loan and Foreclosure Costs Loan and Foreclosure Costs Tax-exempt Interest Income, Securities, Operating, Tax Exempt Cumulative upward carrying value changes between January 1, 2018 and September 30, 2022 Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount Noninterest-bearing demand, savings, interest-bearing demand, and money market accounts Deposits Excluding Time Deposits Noninterest-bearing demand, savings, interest-bearing demand, and money market deposits Other expense Other Expenses Repurchase Agreements and Similar Transactions, Maturity Periods [Domain] Repurchase Agreements and Similar Transactions, Maturity Periods [Domain] Comprehensive (loss): Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Summarized details of Loans Financing Receivable, Past Due [Table Text Block] Debt Securities, Held-to-maturity [Table] Debt Securities, Held-to-Maturity [Table] Held to maturity allowance for credit loss Debt Securities, Held-to-Maturity, Allowance for Credit Loss Hedging Relationship [Domain] Hedging Relationship [Domain] Amortized cost and fair values of investment securities by contractual maturity Investments Classified by Contractual Maturity Date [Table Text Block] Hedging Designation [Axis] Hedging Designation [Axis] Offsetting Assets [Table] Offsetting Assets [Table] Allowance for loan losses Loans and Leases Receivable, Allowance Entity Filer Category Entity Filer Category Less: Legally enforceable master netting agreements Derivative Liabilities Offset Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Liabilities, Fair Value Disclosure [Abstract] Liabilities, Fair Value Disclosure [Abstract] Assets and Liabilities Measured at Fair Value on a Non-recurring Basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract] Recognized compensation expense for vesting Share-based Payment Arrangement, Expense Share-Based Payment Arrangement, Expense Transfer of AFS securities to HTM securities Transfer of AFS securities to HTM securities, Fair Value Transfer of AFS securities to HTM securities, Fair Value Security Exchange Name Security Exchange Name Stock Option Outstanding, Weighted Average Exercise Price, Beginning balance (in usd per share) Stock Option Outstanding, Weighted Average Exercise Price, Ending balance (in usd per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Summary of Restricted Stock Awards Activity (Excluding Salary Shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Letters of Credit Outstanding, Amount Letters of Credit Outstanding, Amount Net decrease in deposits due to branch sales Net Decrease In Deposits Due To Branch Sales Net Decrease In Deposits Due To Branch Sales Gains on sale of branches, net(a) Gain (Loss) on Disposition of Assets for Financial Service Operations Financial liabilities Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Financing Receivable, Impaired [Line Items] Financing Receivable, Impaired [Line Items] Service cost Defined Benefit Plan, Service Cost 60-89 Days Past Due Financial Asset, 60 to 89 Days Past Due [Member] Cover page. Cover [Abstract] Gross Amounts Recognized Derivative Asset, Fair Value, Gross Asset Subject to Master Netting Arrangement Derivative Asset, Fair Value, Gross Asset Subject to Master Netting Arrangement Goodwill, Impairment Loss Goodwill, Impairment Loss Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Total derivatives Derivative [Member] Other assets Other Assets Finance Lease, Weighted Average Discount Rate, Percent Finance Lease, Weighted Average Discount Rate, Percent Visa Restricted Stock Owned. Total Visa Restricted Stock Owned. Total Visa Restricted Stock Owned. Total Revenue from Contracts with Customers Revenue from Contract with Customer [Text Block] Segment Reporting [Abstract] Segment Reporting [Abstract] Assets and liabilities measured on nonrecurring basis at fair value Fair Value Measurements, Nonrecurring [Table Text Block] Amortization of actuarial loss Defined Benefit Plan, Amortization of Gain (Loss) Total liabilities and stockholders’ equity Liabilities and Equity Loans Loans and Leases Receivable, Net of Deferred Income, Total Loans and Leases Receivable, Net of Deferred Income FHLB Advances Prepayment - Prepayment Cost Prepayment Fees on Advances, Net Offsetting [Abstract] Offsetting [Abstract] Noninterest-bearing demand deposits Noninterest-Bearing Domestic Deposit, Demand RemainingContractualMaturityoftheSecuritiesSoldUnderAgreementtoRepurchase [Line Items] RemainingContractualMaturityoftheSecuritiesSoldUnderAgreementtoRepurchase [Line Items] [Line Items] for RemainingContractualMaturityoftheSecuritiesSoldUnderAgreementtoRepurchase [Table] Not designated as hedging instruments Not Designated as Hedging Instrument [Member] Interest on other short-term funding Interest Expense, Other Short-Term Borrowings FHLB advances Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances Amortization of net unrealized losses on AFS securities transferred to HTM securities HTM investment securities, net, at amortized cost Amortization of Net Unrealized Gain on Available-for-Sale Securities Transfered to Held-to-maturity Securities Amortization of Net Unrealized Gain on Available-for-Sale Securities Transfered to Held-to-maturity Securities Gross gains on AFS securities Debt Securities, Available-for-Sale, Realized Gain Amortized Cost Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract] Less: interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Diluted Diluted earnings per common share Earnings Per Share, Diluted Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member] SEC Schedule, 12-09, Reserve, off-Balance-Sheet Activity [Member] Loans transferred from held for sale into portfolio, net Transfer of Portfolio Loans and Leases to Held-for-sale Consolidation Items [Axis] Consolidation Items [Axis] Not Rated [Domain] Not Rated [Member] Not Rated Bank and corporate owned life insurance Bank Owned Life Insurance Income Gain on sale and net write-up of equity securities Carrying value changes Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount 2024 Lessee, Operating Lease, Liability, to be Paid, Year Two Available for Sale, Due after ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Net interest income after provision for credit losses Interest Income (Expense), after Provision for Loan Loss AAA Fitch, AAA Rating [Member] Equity securities Equity Securities, FV-NI and without Readily Determinable Fair Value Equity Securities, FV-NI and without Readily Determinable Fair Value Share Repurchase Program [Axis] Share Repurchase Program [Axis] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Cumulative Effect, Period Of Adoption, Adjustment Cumulative Effect, Period of Adoption, Adjustment [Member] Less: Legally enforceable master netting agreements Derivative Liability, Fair Value, Gross Asset Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Other comprehensive (loss) before reclassifications Other Comprehensive Income (Loss), before Reclassifications, before Tax Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Proceeds from issuance of preferred shares Proceeds from Issuance of Preferred Stock and Preference Stock Derivatives (trading and other assets), fair value Derivative Asset, Subject to Master Netting Arrangement, before Offset Amortization of operating lease liabilities Lessee, Operating Lease, Liability, Maturity [Table Text Block] Entity Address, Address Line One Entity Address, Address Line One Income tax (expense) benefit Other Comprehensive Income (Loss), Tax Fair Value Measurements (Textuals) [Abstract] Fair Value Measurement Inputs and Valuation Techniques [Abstract] Distributed earnings to common shareholders Distributed Earnings To Common Shareholders Diluted Distributed earnings to common shareholders diluted. Product and Service [Axis] Product and Service [Axis] Net increase (decrease) in short-term funding Proceeds from (Repayments of) Short-Term Debt Class of Stock [Domain] Class of Stock [Domain] Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Total interest expense Interest Expense Retirement Plan Type [Axis] Retirement Plan Type [Axis] Equity Securities without Readily Determinable Fair Value [Table] Equity Securities without Readily Determinable Fair Value [Table] Real Estate Construction Real Estate Construction [Member] Real Estate Construction 2023 Lease, Liability, to be Paid, Due Year One Lease, Liability, to be Paid, Due Year One Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Discount Rate Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Discount Rate Real estate construction Construction Loans [Member] Remaining Investment in Qualified Affordable Housing Projects Remaining Investment in Qualified Affordable Housing Projects Remaining Investment in Qualified Affordable Housing Projects Interest-bearing deposits in other financial institutions Interest-Bearing Deposits in Banks and Other Financial Institutions Corporate and Commercial Specialty Commercial Banking Segment [Member] Corporate and Commercial Specialty Disaggregation of revenue by Major source Disaggregation of Revenue [Table Text Block] Revenue from Contract with Customer [Abstract] Three months ending December 31, 2022 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Whitnell Whitnell [Member] Whitnell (Increase) decrease in interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Debt Securities, Held-to-maturity, Credit Quality Indicator Debt Securities, Held-to-Maturity, Credit Quality Indicator [Table Text Block] 2027 Finite-Lived Intangible Asset, Expected Amortization, Year Five Cash dividends Dividends [Abstract] Measurement Frequency [Axis] Measurement Frequency [Axis] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] (Gain) loss on mortgage banking activities, net Gain (Loss) on Sale of Mortgage Loans (Decrease) increase in expense payable Increase (Decrease) in Other Accounts Payable and Accrued Liabilities Lending Related Commitments By Type [Domain] Lending-related commitments by type [Axis] Lending related commitments by type. Retirement Benefits [Abstract] Retirement Benefits [Abstract] Loans Insured or Guaranteed by Government Authorities [Domain] Loans Insured or Guaranteed by Government Authorities [Domain] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Prepayments, calls, and maturities of AFS securities Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Cash Flow From Financing Activities Net Cash Provided by (Used in) Financing Activities [Abstract] Unsettled trades to purchase securities Unsettled Trades To Purchase Securities Unsettled Trades To Purchase Securities Less: interest Finance Lease, Liability, Undiscounted Excess Amount Other Other Noninterest Expense Disposal Group Classification [Domain] Disposal Group Classification [Domain] Loans Sold To Outside Investors Loss ReimbursementSettlement Paid Loans Sold To Outside Investors Loss ReimbursementSettlement Paid Loans Sold To Outside Investors Loss ReimbursementSettlement Paid Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Held to Maturity, Total Debt Securities Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date Asset-based lending & equipment finance(a) Asset-Based Lending [Member] Asset-Based Lending