Prepayment speeds Measurement Input, Prepayment Rate [Member] Loans Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process Statistical Measurement [Domain] Statistical Measurement [Domain] Available-for-sale Securities Debt Securities, Available-for-Sale [Table Text Block] Collateral dependent loans Impaired Loans [Member] Impaired Loans [Member] Award Timing Predetermined Award Timing Predetermined [Flag] Nonaccrual, interest income Financing Receivable, Nonaccrual, Interest Income Real Estate [Domain] Real Estate [Domain] Entity File Number Entity File Number Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Interest rate swaps Interest Rate Swap [Member] 2022 Plan Plan 2022 [Member] Plan 2022 Cash surrender value of bank-owned life insurance Bank Owned Life Insurance Amortization of net unrealized holding losses on securities transferred from available-for-sale to held-to-maturity Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Tabular List, Table Tabular List [Table Text Block] Other Comprehensive Income (Loss), Tax Other Comprehensive Income (Loss), Tax Standard & Poor's, AA- Rating Standard & Poor's, AA- Rating [Member] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Other real estate owned, number of properties Other Real Estate Owned, Number Of Properties Other Real Estate Owned, Number Of Properties Nonaccrual Loans with No Allowance for Credit Losses Financing Receivable, Excluding Accrued Interest, Nonaccrual, No Allowance Pledged Status [Axis] Pledged Status [Axis] Fair Value, by Balance Sheet Grouping Fair Value, by Balance Sheet Grouping [Table Text Block] Common stock redeemed for the net settlement of share-based awards Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Gross Unrealized Losses Debt Securities, Available-for-Sale, 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Measurement Input, Discount Rate [Member] Other comprehensive income (loss) Net effect on other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax After ten years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost Deposits, Fair Value Deposits, Fair Value Disclosure Pooled investment vehicle Hedge Funds, VIE [Member] Hedge Funds, VIE Held-to-maturity securities, Gross Unrealized Gains Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain Measurement Input Type [Domain] Measurement Input Type [Domain] Schedule of Available-for-sale Securities Reconciliation Schedule of Available-for-Sale Securities Reconciliation [Table Text Block] Adjustment to Compensation, Amount Adjustment to Compensation Amount Unamortized debt issuance costs Unamortized Discount and Debt Issuance Costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Net change in accrued income and other assets Increase (Decrease) in Other Operating Assets Share-based compensation expense Share-Based Payment Arrangement, Noncash Expense Charge-Offs Year-to-date gross charge-offs Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Notional Amount Derivative Asset, Notional Amount Impairment Equity Securities without Readily Determinable Fair Value, Impairment Loss, Cumulative Amount Employee Stock Option Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Collateral dependent loans, measurement input Impaired Financing Receivable, Measurement Input Impaired Financing Receivable, Measurement Input Schedule of Servicing Assets at Fair Value Schedule of Servicing Assets at Fair Value [Table Text Block] Securities – taxable Interest Income, Securities, Operating, Taxable Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Accounts and Financing Receivables [Table] Dividends declared Dividends, Common Stock, Cash Total shareholders’ equity Balance, beginning of period Balance, end of period Equity, Attributable to Parent Debt Securities, Available-for-Sale [Table] Debt Securities, Available-for-Sale [Table] Insider Trading Policies and Procedures [Line Items] Share-based compensation expense Share-Based Payment Arrangement, Expense Held-to-maturity securities, Amortized Cost Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date Property, Plant and Equipment Property, Plant and Equipment [Table Text Block] Common stock, authorized (in shares) Common Stock, Shares Authorized Hedging Designation [Domain] Hedging Designation [Domain] Accrued interest receivable Financing Receivable, Accrued Interest, after Allowance for Credit Loss Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Loans held-for-sale Loans held-for-sale Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance Total liabilities and shareholders’ equity Liabilities and Equity Standard & Poor's, AA Rating Standard & Poor's, AA Rating [Member] Interest rate swaps, back-to-back Interest Rate Swap, Back to Back [Member] Interest Rate Swap, Back to Back Securities available-for-sale Available-for-Sale Securities [Member] Liabilities and shareholders’ equity Liabilities and Equity [Abstract] Net unrealized holding gain (losses) recorded within other comprehensive income (loss) before income tax OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment and Tax Cover [Abstract] Cash and cash equivalents, Fair Value Cash and Cash Equivalents, Fair Value Disclosure Healthcare finance Healthcare Finance [Member] Healthcare Finance Maximum Maximum [Member] Loans transferred to other real estate owned Real Estate Owned, Transfer to Real Estate Owned Debt Securities, Held-to-Maturity, Credit Quality Indicator [Table] Debt Securities, Held-to-Maturity, Credit Quality Indicator [Table] Equity Method Investment [Table] Equity Method Investment [Table] Affordable housing Affordable housing [Member] Affordable housing Back to Back Swaps Back to Back Swaps [Member] Back to Back Swaps Total, Fair Value Debt Securities, Available-for-Sale, Unrealized Loss Position Restricted Stock Awards Restricted Stock [Member] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Current year Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Downward changes for observable prices Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Annual Amount External Credit Rating, Standard & Poor's [Domain] External Credit Rating, Standard & Poor's [Domain] Retirement Benefits [Abstract] Retirement Benefits [Abstract] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount 90 Days or More Past Due Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Loan servicing asset revaluation Servicing Asset At Fair Value, Loan Servicing Asset Revaluation Servicing Asset At Fair Value, Loan Servicing Asset Revaluation Revolving loans converted to term Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Goodwill impairment Goodwill, Impairment Loss Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Variable Interest Entity [Table] Variable Interest Entity [Table] Two fiscal years before current year Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Cash Cash More than five years before current year, writeoff Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Total interest expense Interest Expense, Operating Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Proceeds from sale of other real estate owned Proceeds From Liquidation Of Real Estate Owned It represents the proceeds from liquidation of real estate owned. Measurement Input Type [Axis] Measurement Input Type [Axis] Name Measure Name % of class of loans Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent, Total Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Net (decrease) increase in deposits Increase (Decrease) in Deposits Maturities and calls of securities available-for-sale Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Allowance on collateral dependent loans, individually evaluated Financing Receivable, Allowance for Credit Loss, Individually Evaluated Class of Stock [Line Items] Class of Stock [Line Items] Unfunded commitments Equity Securities, Unfunded Commitments, Amount Equity Securities, Unfunded Commitments, Amount Document Fiscal Period Focus Document Fiscal Period Focus Debt Instrument, Principal Amount Exchanged Debt Instrument, Principal Amount Exchanged Debt Instrument, Principal Amount Exchanged Award Timing Method Award Timing Method [Text Block] Nonaccrual Loans Financing Receivable, Excluding Accrued Interest, Nonaccrual Furniture and equipment Furniture and Fixtures [Member] Award Type [Axis] Award Type [Axis] Total assets Assets Other consumer loans Other Consumer Loans [Member] Other Consumer Loans [Member] Investment, Name [Domain] Investment, Name [Domain] Trading Symbol Trading Symbol Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Financing Receivable, Credit Quality Indicator [Line Items] Financing Receivable, Credit Quality Indicator [Line Items] Mortgage-backed securities Collateralized Securities [Member] Securities – non-taxable Interest Income, Securities, Operating, Tax Exempt Accrued expenses and other liabilities Accrued Liabilities and Other Liabilities Entity Address, City or Town Entity Address, City or Town Operating Activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Income before income taxes Income before income taxes [Member] Income before income taxes Restricted Stock Units Restricted Stock Units (RSUs) [Member] Other borrowed funds Interest Expense, Borrowings Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] One to five years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Entity Emerging Growth Company Entity Emerging Growth Company Securities held-to-maturity, net, fair value Securities held-to-maturity, net, fair value Debt Securities, Held-to-Maturity, Fair Value Dividends Declared Per Share (in dollars per share) Dividends declared (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Held-to-maturity Securities Debt Securities, Held-to-Maturity [Table Text Block] Debt Securities, Available-for-Sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] SBIC SBIC [Member] SBIC Noninterest income Loan servicing revenue Revenue from Contract with Customer, Including Assessed Tax Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Total noninterest income Noninterest Income Common stock, outstanding (in shares) Common Stock, Shares, Outstanding Asset Pledged as Collateral Asset Pledged as Collateral [Member] Other (Includes Equipment, Machinery and Other Assets) Other Real Estate [Member] Other Real Estate Gain on loans sold Gain (Loss) on Sales of Loans, Net Held-to-maturity, debt securities, after allowance for credit loss Held-to-maturity, debt securities, after allowance for credit loss Securities held-to-maturity, net Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss Residential mortgage Residential Mortgage [Member] Plan Name [Axis] Plan Name [Axis] Held-to-maturity securities, Gross Unrealized Losses Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss PEO PEO [Member] Loans Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Noninterest expense Noninterest Expense [Abstract] Cash and due from banks Cash and Due from Banks Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Standard & Poor's, BB+ Rating Standard & Poor's, BB+ Rating [Member] Collateral dependent loans Financing Receivable, Excluding Accrued Interest, 90 Days or More Past Due, Still Accruing Within one year Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Continuous unrealized loss position, fair value (as a percent) Available For Sale Securities Continuous Unrealized Loss Position Fair Value In Percentage This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position in percentage. 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] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Retained Earnings Retained Earnings [Member] Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items] Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items] Pledged Status [Domain] Pledged Status [Domain] Awards/Units Outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Location, Statement of Income, Balance [Axis] Location, Statement of Income, Balance [Axis] Location, Statement of Income, Balance Carrying value adjustments Equity Securities without Readily Determinable Fair Value, Carrying Value Adjustment, Cumulative Amount Equity Securities without Readily Determinable Fair Value, Carrying Value Adjustment, Cumulative Amount Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Derivative assets Derivative Asset Income tax benefit Income Tax Expense (Benefit) 12 Months or Longer, Fair Value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Loans purchased Payments to Acquire Loans Receivable Net change in unrealized gain OCI, before Reclassifications, before Tax, Attributable to Parent Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Federal Home Loan Bank of Indianapolis stock, Fair Value Federal Home Loan Bank Stock At Fair Value This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents an amount a bank borrows from the Federal Home Loan Bank stock as of the balance sheet date. Accrued income and other assets Other Assets Beginning balance Ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Credit Rating, Standard & Poor's [Axis] Credit Rating, Standard & Poor's [Axis] Servicing asset, measurement input Servicing Asset, Measurement Input Preferred stock, issued (in shares) Preferred Stock, Shares Issued Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Derivatives designated as hedging instruments Designated as Hedging Instrument [Member] Financing Receivable, Modified [Table] Financing Receivable, Modified [Table] Percentage of annual retainer received in either common stock or deferred stock rights Share-based Compensation Arrangement by Share-base Payment Award, Percentage of Annual Retainer Received in Common Stock or Deferred Stock Rights Share-based Compensation Arrangement by Share-base Payment Award, Percentage of Annual Retainer Received in Common Stock or Deferred Stock Rights Benefit (provision) for credit losses - off-balance sheet commitments Provision for credit losses Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) Product and Service [Domain] Product and Service [Domain] Granted (in shares) Deferred Stock Related To Directors Deferred Stock Plan Granted In Period It represents the deferred stock rights granted to directors during the period related to deferred stock plan. Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Premises and equipment, gross Property, Plant and Equipment, Gross Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Notional Value Derivative, Notional Amount Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Revolving loans amortized, cost basis Financing Receivable, Excluding Accrued Interest, Revolving Moody's, Not Rated Agency Moody's, Not Rated Agency [Member] Moody's, Not Rated Agency Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Other real estate owned Other real estate owned Other Real Estate City Area Code City Area Code Allowance for Credit Losses on Financing Receivables Financing Receivable, Allowance for Credit Loss [Table Text Block] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Schedule Of Unpaid Principal Balances Of Loans Serviced For Others Schedule Of Unpaid Principal Balances Of Loans Serviced For Others [Table Text Block] Schedule Of Unpaid Principal Balances Of Loans Serviced For Others [Table Text Block] Other Noninterest Income, Other Operating Income Balance at beginning of period (in shares) Balance at end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Loans Insured or Guaranteed by US Government Authorities Loans Insured or Guaranteed by US Government Authorities [Member] Maturities and calls of securities held-to-maturity Proceeds from Sale and Maturity of Held-to-Maturity Securities Net cash provided by (used in) operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Accrued interest receivable Accrued interest receivable Interest Receivable Goodwill, Period Increase (Decrease) Goodwill, Period Increase (Decrease) Net loan activity, excluding purchases Payments For (Proceeds) Loans And Leases, Excluding Purchases Payments For (Proceeds) Loans And Leases, Excluding Purchases Paydowns Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Schedule of Servicing Assets at Fair Value [Table] Servicing Asset at Fair Value, Activity [Table] Building and improvements Building Improvements [Member] Equity investment with a readily determinable fair value Equity Securities, FV-NI Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Net interest income Interest Income (Expense), Operating Goodwill Goodwill Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Income tax provision (benefit) Other Comprehensive Income (Loss), Tax on Available-for-Sale Securities Other Comprehensive Income (Loss), Tax on Available-for-Sale Securities Total loans modified Financing Receivable, Modified in Period, Amount Basic earnings per share Weighted Average Number of Shares Outstanding, Basic [Abstract] 30 - 89 Days Past Due Financial Asset, 30 to 89 Days Past Due [Member] Financial Asset, 30 to 89 Days Past Due Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Rolling Maturity [Abstract] Equity Components [Axis] Equity Components [Axis] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Real Estate Properties [Line Items] Real Estate Properties [Line Items] Three fiscal years before current year Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Voting Common Stock Voting Common Stock [Member] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Fair Value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value Number of reportable segments Number of Reportable Segments Benefit Plans Compensation and Employee Benefit Plans [Text Block] Servicing Asset Transfers and Servicing of Financial Assets [Text Block] Supplemental disclosures Supplemental Cash Flow Information [Abstract] Commercial and industrial Commercial Real Estate [Member] Securities available-for-sale, amortized cost Amortized cost Debt Securities, Available-for-Sale, Amortized Cost Other Performance Measure, Amount Other Performance Measure, Amount Entity Address, State or Province Entity Address, State or Province Substandard Substandard [Member] Total interest income Interest and Dividend Income, Operating Financial Asset, Period Past Due [Domain] Financial Asset, Aging [Domain] Special Mention Special Mention [Member] Moody's, Baa3 Rating Moody's, Baa3 Rating [Member] Servicing asset, at fair value Servicing asset Servicing Asset Net loans, fair value Loans Receivable, Fair Value Disclosure Investor commercial real estate Real Estate [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Individual: Individual [Axis] Deferred stock rights and restricted stock units issued in lieu of cash dividends payable on outstanding deferred stock rights and restricted stock units Stock Issued During Period, Value, Stock Dividend Net deferred loan origination fees/costs and premiums/discounts on purchased loans and other Financing Receivable, Unamortized Loan Cost (Fee) and Purchase Premium (Discount) Accounting Changes and Error Corrections [Abstract] Performance of Loans Modified in the Last Twelve Months Financing Receivable, Modified, Past Due [Table Text Block] Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Loans Insured or Guaranteed by Government Authorities [Axis] Loans Insured or Guaranteed by Government Authorities [Axis] Voting and Nonvoting Common Stock Voting and Non Voting Common Stock [Member] Continuous unrealized loss position, fair value Securities, Continuous Unrealized Loss Position, Fair Value Securities, Continuous Unrealized Loss Position, Fair Value Cash paid during the period for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Servicing Assets at Fair Value [Line Items] Servicing Assets at Fair Value [Line Items] Maximum Exposure to Loss Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Schedule Of Impaired Loans, Including Valuation Allowance, Fair Value, Unobservable Inputs Reconciliation Schedule Of Impaired Loans, Including Valuation Allowance, Fair Value, Unobservable Inputs Reconciliation [Table Text Block] Schedule Of Impaired Loans, Including Valuation Allowance, Fair Value, Unobservable Inputs Reconciliation [Table Text Block] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Entity Interactive Data Current Entity Interactive Data Current Plan Name [Domain] Plan Name [Domain] Schedule of Subordinated Borrowing Schedule of Subordinated Borrowing [Table Text Block] Period for recognition Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Financing Receivable, Modified [Line Items] Financing Receivable, Modified [Line Items] Loss (gain) on sale of other real estate owned Gains (Losses) on Sales of Other Real Estate Interest Income Interest Income (Expense), Operating [Member] Interest Income (Expense), Operating Interest income Interest and Dividend Income, Operating [Abstract] Upward changes for observable prices Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount Accrued interest, held to maturity Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss Total noninterest expense Noninterest Expense Segment Information Segment Reporting Disclosure [Text Block] Derivatives not designated as hedging instruments Not Designated as Hedging Instrument [Member] Discount for type of property and current market conditions Measurement Input, Discount For Type Of Property And Current Market Conditions [Member] Measurement Input, Discount For Type Of Property And Current Market Conditions [Member] 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] Deferred Stock Right, Conversion to Common Stock Deferred Stock Right, Conversion to Common Stock Deferred Stock Right, Conversion to Common Stock Paydowns Servicing Asset at Fair Value, Disposals Payment Delay Payment Deferral [Member] Deposits Interest Expense, Deposits Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Data processing Information Technology and Data Processing Noninterest income Noninterest Income [Abstract] Doubtful Doubtful [Member] Corporate Securities Other Debt Obligations [Member] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Accumulated Other Comprehensive Loss Comprehensive Income (Loss) Note [Text Block] Weighted-Average Range Weighted Average [Member] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Nonaccrual Nonperforming Financial Instruments [Member] Depreciation and amortization Depreciation, Depletion and Amortization Net income Net Income (Loss) Attributable to Parent [Member] Net Income (Loss) Attributable to Parent Standard & Poor's Not Rated Standard & Poor's Not Rated [Member] Standard & Poor's Not Rated Entity Central Index Key Entity Central Index Key PEO Name PEO Name 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] Agency mortgage-backed securities - residential Residential Mortgage-Backed Securities [Member] Financing Receivable Credit Quality Indicators Financing Receivable Credit Quality Indicators [Table Text Block] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Held-to-maturity securities, One to five years Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after One through Five Years Noninterest-bearing deposits Noninterest-Bearing Deposit Liabilities Arrangement Duration Trading Arrangement Duration Debt Instrument, Principal Amount Remaining Debt Instrument, Principal Amount Remaining Debt Instrument, Principal Amount Remaining Schedule of Derivative Instruments in Statement of Financial Position, Fair Value Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Local Phone Number Local Phone Number Class of Stock [Domain] Class of Stock [Domain] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Other investing activities Payment for (Proceeds from) Other Investing Activity Loan servicing revenue Loan servicing Loan Servicing [Member] Loan Servicing [Member] Owner-occupied commercial real estate Owner Occupied Commercial Real Estate [Member] Owner Occupied Commercial Real Estate [Member] Off-balance sheet commitments Off-Balance-Sheet, Credit Loss, Liability Assets Assets [Abstract] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Small business lending Small business lending Small Business Lending [Member] Small Business Lending [Member] Loans serviced for others Financing Receivable, before Allowance for Credit Loss Debt Instrument [Axis] Debt Instrument [Axis] Cancelled/Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Held-to-maturity securities, One to five years Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Shareholders’ equity Equity, Attributable to Parent [Abstract] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Entity Address, Address Line One Entity Address, Address Line One Loans Experiencing Financial Difficulty and Modified Financing Receivable, Modified [Table Text Block] Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Fixed annual interest rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Investment, Name [Axis] Investment, Name [Axis] Net change in accrued expenses and other liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities 30-59 Days Past Due Financial Asset, 30 to 59 Days Past Due [Member] Available-for-sale Securities [Abstract] Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] Investments [Domain] Investments [Domain] Number of securities in portfolio Debt Securities, Number Of Securities In Portfolio Debt Securities, Number Of Securities In Portfolio Revolving loans converted to term, writeoff Financing Receivable, Excluding 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compensation (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Title of Individual [Domain] Title and Position [Domain] Compensation cost not yet recognized Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Cancelled/Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Document Quarterly Report Document Quarterly Report Less Than 12 Months, Fair Value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Provision for credit losses Provision for Loan, Lease, and Other Losses Advances from Federal Home Loan Bank, Fair Value Long-Term Debt, Fair Value Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques Fair 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Interest Income (Expense), after Provision for Loan Loss Asset Derivatives Derivative Asset [Abstract] Available-For-Sale Securities AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] Interest expense Interest Expense, Operating and Nonoperating [Abstract] Less: accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Company Selected Measure Name Company Selected Measure Name SBA guaranteed loans SBA Guaranteed Loans [Member] SBA Guaranteed Loans [Member] Purchase of securities available-for-sale Payments to Acquire Debt Securities, Available-for-Sale Preferred stock, no par value; 4,913,779 shares authorized; issued and outstanding - none Preferred Stock, Value, Issued Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Accrued interest payable Interest 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sheet date. 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AOCI, Gain (Loss), Debt Securities, Transferred From Available-for-Sale to Held-to-Maturity AOCI, Gain (Loss), Debt Securities, Transferred From Available-for-Sale to Held-to-Maturity [Member] AOCI, Gain (Loss), Debt Securities, Transferred From Available-for-Sale to Held-to-Maturity Amortized cost basis of collateral dependent loans, individually evaluated Financing Receivable, Individually Evaluated for Credit Loss Fiscal year before current year, writeoff Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Number of loans modified Financing Receivable, Modified, Number Of Contracts Financing Receivable, Modified, Number Of Contracts Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Four fiscal years before current year, writeoff Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff One to five years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Proceeds from advances from Federal Home Loan Bank Proceeds from FHLBank Borrowings, Financing Activities Debt Securities, Held-to-Maturity [Table] Debt Securities, Held-to-Maturity [Table] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Total other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Derivative Liability [Abstract] Derivative Liability [Abstract] Commercial Portfolio Segment Commercial Portfolio Segment [Member] Financing Receivable, Modified, Past Due [Line Items] Financing Receivable, Modified, Past Due [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Standard & Poor's, AAA Rating Standard & Poor's, AAA Rating [Member] Repayment of advances from Federal Home Loan Bank Payments of FHLBank Borrowings, Financing Activities Diluted (in dollars per share) Diluted (loss) earnings per common share (in dollars per share) Earnings Per Share, Diluted Deposit insurance premium Federal Deposit Insurance Corporation Premium Expense Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Title of 12(b) Security Title of 12(b) Security Provision for credit losses Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal) Within one year Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Financing Receivable, Modified, Past Due [Table] Financing Receivable, Modified, Past Due [Table] Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table] Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table] Income per share of common stock Earnings Per Share [Abstract] Earnings Per Share [Abstract] Financing Receivables, Provision For Credit Losses On Off-Balance Sheet Commitments Financing Receivables, Provision For Credit Losses On Off-Balance Sheet Commitments [Table Text Block] Financing Receivables, Provision For Credit Losses On Off-Balance Sheet Commitments Nonvoting Common Stock Nonvoting Common Stock [Member] Standard & Poor's, BBB- Rating Standard & Poor's, BBB- Rating [Member] Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Variable Interest Entity, Not Primary Beneficiary Variable Interest Entity, Not Primary Beneficiary [Member] Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] Originated Servicing Asset at Fair Value, Additions Two fiscal years before current year, writeoff Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Non-marketable and other equity investments Non-marketable and other equity investments [Member] Non-marketable and other equity investments Diluted earnings per share Weighted Average Number of Shares Outstanding, Diluted, Adjustment [Abstract] Increase in cash surrender value of bank-owned life insurance Increase Decrease In Cash Surrender Value Of Life Insurance Represents the amount of increase(decrease) in cash surrender value of bank-owned life insurance. Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Cash (received) paid during the period for taxes Income Taxes Paid, Net Nonvested Restricted Stock Shares Activity Nonvested Restricted Stock Shares Activity [Table Text Block] Award Timing Disclosures [Line Items] Principal Long-Term Debt, Gross Commercial Real Estate Commercial Real Estate 1 [Member] Commercial Real Estate 1 Premises and Equipment Property, Plant and Equipment Disclosure [Text Block] Right of use leased asset Right Of Use Leased Asset [Member] Right Of Use Leased Asset [Member] Total Equity Securities without Readily Determinable Fair Value, Net Increase (Decrease) Equity Securities without Readily Determinable Fair Value, Net Increase (Decrease) Accrued interest receivable, Fair Value Interest Receivable At Fair Value This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. This item represents interest receivable as presented on the statement of financial position which are due the Company as of the balance sheet date. Five to ten years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value Loans Total loans Total loans Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Net loans Net loans Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Net income Net income Net income Net Income (Loss) Attributable to Parent Amortization expense Amortization Expense Amortization Expense Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] Expiration Date Trading Arrangement Expiration Date Discount to reflect current market conditions Measurement Input, Discount For Current Market Conditions [Member] Measurement Input, Discount For Current Market Conditions Construction in process Construction in Progress [Member] Income tax provision Other Comprehensive Income (Loss), Tax on Held-to-Maturity Securities Other Comprehensive Income (Loss), Tax on Held-to-Maturity Securities Equity Method Investments Equity Method Investments [Table Text Block] Premises and equipment, net Premises and equipment, net Property, Plant and Equipment, Net Outstanding, beginning of period (in shares) Outstanding, end of period (in shares) Deferred Stock Related To Directors Deferred Stock Plan Outstanding Number It represents the outstanding number of deferred stock rights related to directors deferred stock plan. Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Adoption Date Trading Arrangement Adoption Date Moody's, A3 Rating Moody's, A3 Rating [Member] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Construction Construction Loans [Member] Franchise finance Franchise Finance [Member] Franchise Finance Entity Current Reporting Status Entity Current Reporting Status Receivables [Abstract] Receivables [Abstract] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Collateral Held [Axis] Collateral Held [Axis] 6.0% Fixed to Floating Subordinated Notes due 2029 2029 Notes 6.0% Fixed To Floating Subordinated Notes Due 2029 [Member] 6.0% Fixed To Floating Subordinated Notes Due 2029 Consolidated Entities [Domain] Consolidated Entities [Domain] Moody's, Baa2 Rating Moody's, Baa2 Rating [Member] Moody's, Baa1 Rating Moody's, Baa1 Rating [Member] Retained earnings Retained Earnings (Accumulated Deficit) Unfunded Commitments Unfunded Commitments [Member] Unfunded Commitments Public finance Public Finance [Member] Public Finance [Member] Financial Instrument [Axis] Financial Instrument [Axis] 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, Noncash Item [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Executive Category: Executive Category [Axis] 12 Months or Longer, Unrealized Losses Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Gain on derivatives Gain Loss On Derivatives Gain or (loss) recognized in the income statement related to the fair value adjustment of derivatives. Changes in fair value due to changes in valuation inputs or assumptions used in the valuation model Changes in fair value due to changes in valuation inputs or assumptions used in the valuation model Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions Purchase of securities held-to-maturity Payments to Acquire Held-to-Maturity Securities Current Fiscal Year End Date Current Fiscal Year End Date Class of Stock [Axis] Class of Stock [Axis] Percentage of investments issued by U.S. government-sponsored entities and agencies Investments, Percentage Issued by United States Government Sponsored Entities or Agencies Investments, Percentage Issued by United States Government Sponsored Entities or Agencies Less Than 12 Months, Unrealized Losses Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Total deposits Deposits Deposits Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Other real estate owned, measurement input Other Real Estate Owned, Measurement Input Loan expenses Loan Processing Fee Schedule of Accounts, Notes, Loans and Financing Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Weighted-Average Grant Date Fair Value Per Share (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Held-to-maturity securities, amortized cost Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss Consulting and professional services Professional Fees Federal Home Loan Bank of Indianapolis stock Federal Home Loan Bank of Indianapolis stock Federal Home Loan Bank Stock Statement [Table] Statement [Table] Derivative liabilities Derivative Liability Real Estate Property, Ownership [Table] Real Estate Property, Ownership [Table] Financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Other Other Noninterest Expense Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Pass Pass [Member] External Credit Rating, Moody's [Domain] External Credit Rating, Moody's [Domain] Total, Unrealized Losses Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss Total loans modified in the last twelve months Financing Receivable, Modified, after 12 Months Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Weighted-average number of common shares outstanding Weighted Average Number of Shares Outstanding, Diluted [Abstract] Payments for swap termination payments Payments for Derivative Instrument, Investing Activities All Adjustments to Compensation All Adjustments to Compensation [Member] Unregistered 2031 Notes Unregistered 2031 Notes [Member] Unregistered 2031 Notes Held-to-maturity securities, Fair Value Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Fair Value Amendment Flag Amendment Flag Number of shares authorized (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Total Collateral Pledged [Member] Accrued interest, available for sale Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss Past Due Financing Receivables Financing Receivable, Past Due [Table Text Block] Standard & Poor's, AA+ Rating Standard & Poor's, AA+ Rating [Member] Transfers and Servicing [Abstract] Transfers and Servicing [Abstract] Interest-bearing deposits Interest-Bearing Deposit Liabilities Termination Date Trading Arrangement Termination Date Net cash (used in) provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Interest-bearing deposits Interest-Bearing Deposits in Banks and Other Financial Institutions Number of shares outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Outstanding Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Allowance for credit losses - loans Allowance for credit losses Beginning balance Ending balance Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Subordinated debt, Fair Value Subordinated Debt Obligations, Fair Value Disclosure Credit Rating, Moody's [Axis] Credit Rating, Moody's [Axis] Provision for credit losses Financing Receivable, Credit Loss, Expense (Reversal) Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Fair Value Derivative, Fair Value, Net Held-to-maturity securities, Five to ten years Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value Gain on sale of loans Gain (Loss) on Sale of Other Loans and Leases Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Fair Value, Assets Measured on Recurring Basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] Basic (in shares) Weighted-average common shares (in shares) Weighted Average Number of Shares Outstanding, Basic Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Director Director [Member] Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract] Debt Securities, Held-to-Maturity, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] Consumer Portfolio Consumer Portfolio Segment [Member] Segment Reporting [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] 2031 Notes 3.75% Notes Due 2031 [Member] 3.75% Notes Due 2031 After ten years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value Debt Disclosure [Abstract] Debt Disclosure [Abstract] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Entity Tax Identification Number Entity Tax Identification Number GenOpp Financial Fund LP GenOpp Financial Fund LP [Member] GenOpp Financial Fund LP Discounted cash flow Valuation Technique, Discounted Cash Flow [Member] Benefit for credit losses - debt securities held to maturity Debt Securities, Held-to-Maturity, Credit Loss Expense (Reversal) Three fiscal years before current year, writeoff Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff Reclassification of net loss realized and included in earnings Reclassification from AOCI, Current Period, before Tax, Attributable to Parent Schedule of Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] Derivative Derivative [Member] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Consolidated Entities [Axis] Consolidated Entities [Axis] Schedule of Weighted Average Number of Shares Schedule of Weighted Average Number of Shares [Table Text Block] Common stock, issued (in shares) Common Stock, Shares, Issued Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Agency mortgage-backed securities - commercial Commercial Mortgage-Backed Securities [Member] Deferred Stock Units Deferred Stock Units [Member] Deferred Stock Units [Member] Goodwill Goodwill and Intangible Assets Disclosure [Text Block] Loans Financing Receivable [Member] Allowance for loan losses: Allowance for Loan and Lease Losses [Roll Forward] Agency mortgage-backed securities - residential Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] Cash dividends paid Payments of Dividends Income tax provision (benefit) Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Private equity and venture capital funds Private equity and venture capital funds [Member] Private equity and venture capital funds Premises and equipment Occupancy, Net Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Accrued interest payable, Fair Value Interest Payable At Fair Value This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. This item represents the amount of accrued interest payable as of the balance sheet date. Real Estate, Type of Property [Axis] Real Estate, Type of Property [Axis] Insider Trading Arrangements [Line Items] More than five years before current year Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Security Exchange Name Security Exchange Name Deferred Stock Rights Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Current Financial Asset, Not Past Due [Member] Total liabilities Liabilities Amortized Cost Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Pledging Purpose [Axis] Pledging Purpose [Axis] Net effect on other comprehensive income OCI, Debt Securities, Held-to-Maturity, Gain (Loss), after Adjustment and Tax OCI, Debt Securities, Held-to-Maturity, Gain (Loss), after Adjustment and Tax Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Financial Instrument Performance Status [Domain] Financial Instrument Performance Status [Domain] Change in fair value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Statement [Line Items] Statement [Line Items] Asset-backed securities Asset-Backed Securities [Member] Schedule Of Deferred Stock Option Plan Schedule Of Deferred Stock Option Plan [Table Text Block] Tabular disclosure of the description of the plan, analysis of deferred stock rights and common stock related to directors deferred stock plan. Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Total cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Common Stock Common Stock [Member] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Total available-for-sale securities Fair Value Debt Securities, Available-for-Sale Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Corporate securities Corporate Debt Securities [Member] Net decrease in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Servicing Asset at Fair Value, Amount [Roll Forward] Servicing Asset at Fair Value, Amount [Roll Forward]