Investments, Debt and Equity Securities [Abstract] Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Obligations of U.S. Government-sponsored enterprises US Government-sponsored Enterprises Debt Securities [Member] Obligations of states and political subdivisions US States and Political Subdivisions Debt Securities [Member] Agency mortgage-backed securities Residential Mortgage Backed Securities [Member] US Treasury Bill Securities [Member] US Treasury Bill Securities [Member] Corporate Debt Securities [Member] Corporate Debt Securities [Member] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-sale [Line Items] 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 Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 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 Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Debt Securities, Available-for-sale, Unrealized Loss Position Debt Securities, Available-for-sale, Unrealized Loss Position Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss Commitments and Contingencies Disclosure [Abstract] Commitments Commitments and Contingencies Disclosure [Text Block] Investments Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Receivables [Abstract] Covered Loans [Table] Covered Loans [Table] Covered Loans [Table] Loans By Major Category [Axis] Loans By Major Category [Axis] Loans By Major Category [Axis] Loans By Major Category [Domain] Loans By Major Category [Domain] Loans By Major Category [Domain] Portfolio loans, net Noncovered Loans [Member] Noncovered Loans [Member] Non-covered Loans [Line Items] Covered Loans [Line Items] Covered Loans [Line Items] Summary of Portfolio Loans by Category Schedule of Accounts, Notes, Loans and Financing Receivable, Excluding Allowance for Credit Losses [Table Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable, Excluding Allowance for Credit Losses [Table Text Block] Summary of Allowance for Loan Losses and the Recorded Investment in Portfolio Loans by Class and Category Based on 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[Table Text Block] Summary of Recorded Investment by Risk Category of Portfolio Loans by Portfolio Class and Category Financing Receivable Credit Quality Indicators [Table Text Block] Schedule of Commitments [Table] Schedule of Commitments [Table] Schedule of Commitments [Table] Commitments to extend credit Commitments to Extend Credit [Member] Letters of credit Standby Letters of Credit [Member] Nature of Commitments [Axis] Nature of Commitments [Axis] Nature of Commitments [Axis] Nature of Commitments [Domain] Nature of Commitments [Domain] Nature of Commitments [Domain] Unadvanced Commitment on Impaired Loan Unadvanced Commitment on Impaired Loan [Member] Unadvanced Commitment on Impaired Loan [Member] Fixed Rate Loan Commitment Fixed Rate Loan Commitment [Member] Fixed Rate Loan Commitment [Member] Statistical Measurement [Axis] Statistical Measurement [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Maximum Maximum [Member] Minimum Minimum [Member] Schedule of Commitments [Line Items] Schedule of Commitments [Line Items] Schedule of Commitments [Line Items] Estimated losses attributable to unadvanced commitments on impaired loans Loans and Leases Receivable, Impaired Loans, Commitment to Lend, Reserve Loans and Leases Receivable, Impaired Loans, Commitment to Lend, Reserve Off-balance sheet financial instruments, contractual amounts Contractual Amounts Of Off Balance Sheet Financial Instruments Contractual Amounts Of Off Balance Sheet Financial Instruments Remaining term Debt Instrument, Remaining Term Debt Instrument, Remaining Term Earnings Per Share [Abstract] Summary of Per Common Share Data and Amounts Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Equity [Abstract] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Net Unrealized Gain (Loss) on Available-for-Sale Debt Securities AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member] Unamortized Gain (Loss) on Held-to-Maturity Securities AOCI, Accumulated Gain (Loss), Held To Maturity Securities, Parent [Member] AOCI, Accumulated Gain (Loss), Held To Maturity Securities, Attributable to Parent [Member] Net Unrealized Loss on Cash Flow Hedges Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Total AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Beginning balance Stockholders' Equity Attributable to Parent Net change Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Ending balance Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Derivative [Table] Derivative [Table] Scenario [Axis] Scenario [Axis] Scenario [Domain] Scenario [Domain] Scenario, Forecast Forecast [Member] Minimum Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash Flow Hedging Cash Flow Hedging [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Derivatives Designated as Hedging Instruments Designated as Hedging Instrument [Member] Derivatives not Designated as Hedging Instruments Not Designated as Hedging Instrument [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Subordinated Debt [Member] Subordinated Debt [Member] Federal Home Loan Bank Overnight Advances [Member] Federal Home Loan Bank Overnight Advances [Member] Federal Home Loan Bank Overnight Advances [Member] Other Assets Other Assets [Member] Other Liabilities Other Liabilities [Member] Federal Home Loan Bank 3 Month Advances [Member] Federal Home Loan Bank 3 Month Advances [Member] Federal Home Loan Bank 3 Month Advances [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Interest rate swap Interest Rate Contract [Member] Interest rate swap Interest Rate Swap [Member] Derivative [Line Items] Derivative [Line Items] Derivative, Variable Interest Rate Derivative, Variable Interest Rate Derivative, fixed rate Derivative, Fixed Interest Rate Cash flow hedge term Derivative, Average Term Derivative, Average Term Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract] Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract] Derivative Asset, Notional Amount Derivative Asset, Notional Amount Asset derivatives (other assets), fair value Derivative Asset, Fair Value, Gross Asset Liability derivatives (other liabilities), fair value Derivative Liability, Fair Value, Gross Liability Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract] Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract] Derivative Asset [Abstract] Derivative Asset [Abstract] Gross Amounts Offset in the Statement of Financial Position Derivative Asset, Fair Value, Gross Liability Derivative financial instruments Derivative Asset Financial Instruments Derivative, Collateral, Obligation to Return Securities Fair Value Collateral Posted Derivative, Collateral, Obligation to Return Cash Net Amount Derivative Asset, Fair Value, Amount Offset Against Collateral Derivative Liability [Abstract] Derivative Liability [Abstract] Gross Amounts Offset in the Statement of Financial Position Derivative Liability, Fair Value, Gross Asset Net Amounts of Liabilities presented in the Statement of Financial Position Derivative Liability Financial Instruments Derivative, Collateral, Right to Reclaim Securities Fair Value Collateral Posted Derivative, Collateral, Right to Reclaim Cash Net Amount Derivative Liability, Fair Value, Amount Offset Against Collateral Securities Sold under Agreements to Repurchase [Abstract] Securities Sold under Agreements to Repurchase [Abstract] Gross Amounts Recognized Securities Sold under Agreements to Repurchase, Gross Gross Amounts Offset in the Statement of Financial Position Securities Sold under Agreements to Repurchase, Asset Net Amounts of Liabilities presented in the Statement of Financial Position Securities Sold under Agreements to Repurchase Financial Instruments Securities Sold under Agreements to Repurchase, Collateral, Right to Reclaim Securities Fair Value Collateral Posted Securities Sold under Agreements to Repurchase, Collateral, Right to Reclaim Cash Net Amount Securities Sold under Agreements to Repurchase, Amount Offset Against Collateral Fair value of derivatives in a net liability position Derivative, Net Liability Position, Aggregate Fair Value Posted collateral Collateral Already Posted, Aggregate Fair Value Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Accounting Policies [Abstract] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Accrued interest receivable Interest Receivable Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income Net Income (Loss) Attributable to Parent 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] Depreciation Depreciation, Nonproduction Provision for credit losses Provision for Loan and Lease Losses Deferred income taxes Deferred Income Tax Expense (Benefit) Net amortization of debt securities Accretion (Amortization) of Discounts and Premiums, Investments Amortization of intangible assets Amortization of Intangible Assets Gain on sale of investment securities Gain (Loss) on Sale of Debt Investments Mortgage loans originated-for-sale Payments for Origination of Mortgage Loans Held-for-sale Proceeds from mortgage loans sold Proceeds from Sale of Mortgage Loans Held-for-sale Valuation adjustments and sale of other real estate Gain (Loss) on Sale of Properties Sale of state tax credits Gain on state tax credits, net Gain on state tax credits, net Share-based Payment Arrangement, Noncash Expense Share-based Payment Arrangement, Noncash Expense Net accretion of loan discount Net accretion of loan discount and indemnification asset Net accretion of loan discount and indemnification asset Changes in other assets and liabilities, net Changes in: [Abstract] Changes in: [Abstract] Increase (Decrease) in Other Operating Assets and Liabilities, Net Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Payments for Previous Acquisition Payments for Previous Acquisition Net decrease (increase) in loans Payments for (Proceeds from) Loans and Leases Sale of debt securities, available-for-sale Proceeds from Sale of Available-for-sale Securities Paydown or maturity of debt securities, available-for-sale Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale Paydown or maturity of debt securities, held-to-maturity Proceeds from Sale and Maturity of Held-to-maturity Securities Redemption of other investments Proceeds from Maturities, Prepayments and Calls of Other Investments Sale of state tax credits held for sale Proceeds from the sale of state tax credits held for sale Proceeds from the sale of state tax credits held for sale Sale of other real estate Proceeds from Sale of Other Real Estate Payments for the purchase of: Payments to Acquire Investments [Abstract] Available-for-sale debt securities Payments to Acquire Available-for-sale Securities Other investments Payments to Acquire Other Investments State tax credits held for sale Payments to acquire State tax credits held for sale Payments to acquire State tax credits held for sale Fixed assets, net Payments to Acquire Property, Plant, and Equipment Net cash (used in) provided by investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Net increase (decrease) in noninterest-bearing deposit accounts Net Change Noninterest-bearing Deposits, Domestic Net increase (decrease) in interest-bearing deposit accounts Net Change Interest-bearing Deposits, Domestic Repayments of FHLB advances, net Proceeds from (Payments for) Short Term FHLBank Borrowings, Financing Activities Proceeds from (Payments for) Short Term FHLBank Borrowings, Financing Activities Proceeds from Issuance of Long-term Debt Proceeds from Issuance of Long-term Debt Repayments of Long-term Debt Repayments of Long-term Debt Net decrease in other borrowings Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase Cash dividends paid on common stock Payments of Ordinary Dividends, Common Stock Payments for Repurchase of Common Stock Payments for Repurchase of Common Stock Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Payments of Stock Issuance Costs Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Net increase in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash and cash equivalents, beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents, end of period Supplemental Cash Flow Information [Abstract] Cash paid during the period for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Noncash transactions: Noncash Investing and Financing Items [Abstract] Transfer to other real estate owned in settlement of loans Real Estate Owned, Transfer from Real Estate Owned Right-of-use assets obtained in exchange for lease obligations Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Common shares issued related to acquisition Common shares issued in relation to acquisition Common shares issued related to acquisition Portfolio Loans Financing Receivables [Text Block] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value, Fair Value Disclosure Portion at Fair Value Measurement [Member] Carrying Amount Reported Value Measurement [Member] Estimated fair value Estimate of Fair Value Measurement [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Balance sheet assets Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Securities available for sale Available-for-sale Securities Securities held-to-maturity Debt Securities, Held-to-maturity Other investments Cost Method Investments, Fair Value Disclosure Loans held for sale Mortgages Held-for-sale, Fair Value Disclosure Derivatives Loans, net Loans And Leases Receivable Net Reported Amount Fair Value Disclosure Loans And Leases Receivable Net Reported Amount Fair Value Disclosure State tax credits held for sale State Tax Credits Held For Sale, Fair Value Disclosure State Tax Credits Held For Sale, Fair Value Disclosure Balance sheet liabilities Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Certificates of deposit Deposits, Fair Value Disclosure Subordinated debentures and notes Subordinated Debt Obligations, Fair Value Disclosure FHLB advances Federal Home Loan Bank Borrowings, Fair Value Disclosure Other borrowings Other Borrowings Fair Value Disclosure Other Borrowings Fair Value Disclosure Derivatives Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Commercial and industrial Commercial and Industrial Portfolio Segment [Member] Commercial and Industrial [Member] Residential Portfolio Segment Residential Portfolio Segment [Member] Consumer and other Consumer and Other Portfolio Segment [Member] Consumer and Other Portfolio Segment [Member] Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Domain] Financial Instrument Performance Status [Domain] Performing Performing Financial Instruments [Member] Non Performing Nonperforming Financial Instruments [Member] Financing Receivable, Credit Quality Indicator [Line Items] Financing Receivable, Credit Quality Indicator [Line Items] Investment on loans by payment activity Financing Receivable, after Allowance for Credit Loss Summary of Non-covered Loans Individually Evaluated for Impairment by Category (Table) Schedule of Impaired Financing Receivable [Table] Portfolio Segment [Axis] Class of Financing Receivable [Axis] Financing Receivable Allowance [Domain] Class of Financing Receivable [Domain] Commercial - investor owned Commercial Real Estate Investor Owned Financing Receivable [Member] Commercial Real Estate Investor Owned Financing Receivable [Member] Commercial - owner occupied Commercial Real Estate Owner Occupied Financing Receivable [Member] Commercial Real Estate Owner Occupied Financing Receivable [Member] Construction and land development Construction and Land Development Financing Receivable [Member] Construction and Land Development Financing Receivable [Member] Residential real estate Residential Real Estate Financing Receivable [Member] Residential Real Estate Financing Receivable [Member] Financing Receivable, Impaired [Line Items] Financing Receivable, Impaired [Line Items] Recorded Investment With No Allowance Impaired Financing Receivable, with No Related Allowance, Recorded Investment Total Recorded Investment Impaired Financing Receivable, Recorded Investment Financing Receivable, Allowance for Credit Loss, Writeoff Financing Receivable, Allowance for Credit Loss, Writeoff Financing Receivable, Allowance for Credit Loss, Recovery Financing Receivable, Allowance for Credit Loss, Recovery Financing receivable, allowance for credit loss Financing Receivable, Allowance for Credit Loss Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) Provision for credit losses Financing Receivable, Credit Loss, Expense (Reversal) Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Commercial and industrial Construction and land development Residential Total real estate loans Real Estate Loans Portfolio Segment [Member] Real Estate Loans Portfolio Segment[Member] Consumer and other Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Loans, before unearned loan fees Financing Receivable, before Allowance for Credit Loss Unearned loan fees, net Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums Loans, including unearned loan fees Financing Receivable, after Deferred Income Offset Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Measurement Frequency [Domain] Measurement Frequency [Domain] Fair Value, Measurements, Nonrecurring Fair Value, Nonrecurring [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] Impaired loans Impaired loans [Member] Impaired loans Other real estate Other real estate [Member] Other real estate 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] Impaired loans Loans Receivable, Fair Value Disclosure Other real estate Other Real Estate, Fair Value Disclosure Other Real Estate, Fair Value Disclosure Total assets Assets, Fair Value Disclosure Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Table] Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Table] Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Table] CRE - investor owned CRE - owner occupied Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items] Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items] Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items] Financing Receivable, Modifications, Number of Contracts Financing Receivable, Modifications, Number of Contracts Financing Receivable, Troubled Debt Restructuring, Postmodification Financing Receivable, Troubled Debt Restructuring, Postmodification Financing Receivable, Troubled Debt Restructuring, Premodification Financing Receivable, Troubled Debt Restructuring, Premodification Total Loans - Ending balance: Loans and Leases Receivable, Gross, Carrying Amount [Abstract] Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums Total Summary of Recorded Investment in Impaired Non-covered Loans by Category [Table] Summary of Recorded Investment in Impaired Non-covered Loans by Category [Table] Summary of Recorded Investment in Impaired Non-covered Loans by Category [Table] Non-Covered Loans Financing Receivable, Past Due [Line Items] Financing Receivable, Past Due [Line Items] Nonaccrual Financing Receivable, Nonaccrual Restructured, accruing Financing Receivable, Troubled Debt Restructuring Impaired Financing Receivables, Recorded Investment, 90 Days Past Due and Still Accruing Financing Receivable, 90 Days or More Past Due, Still Accruing Summary of Financial Instruments Measured at Fair Value on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Summary of Financial Instruments and Non-Financial Assets Measured at Fair Value on a Non-Recurring Basis Fair Value Measurements, Nonrecurring [Table Text Block] Summary of Carrying Amount and Fair Values of Financial Instruments Reported on the Balance Sheets Fair Value, by Balance Sheet Grouping [Table Text Block] Business and Consolidation Basis Of Accounting And Consolidation Policy [Policy Text Block] Basis Of Accounting And Consolidation Policy [Policy Text Block] Available-for-sale Securities Marketable Securities, Policy [Policy Text Block] Summary of Recorded Investment by Risk Category of Non-covered Loans by Portfolio Class and Category (Table) Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Pass (1-6) Pass [Member] Watch (7) Special Mention [Member] Classified (8 & 9) Substandard [Member] Total Criticized [Member] Credit Loss Status [Axis] Credit Loss Status [Axis] Credit Loss Status [Domain] Credit Loss Status [Domain] Financial Asset Acquired with Credit Deterioration [Member] Financial Asset Acquired with Credit Deterioration [Member] Collateral [Axis] Collateral [Axis] Collateral [Domain] Collateral [Domain] Commercial Real Estate [Member] Commercial Real Estate [Member] Residential Real Estate [Member] Residential Real Estate [Member] Real Estate Real Estate [Member] Blanket Lien Blanket Lien [Member] Blanket Lien [Member] Loans, before unearned loan fees Summary of Recorded Investment by Category of Non-covered Loans Restructured (Table) Financing Receivable, Troubled Debt Restructuring [Table] Real Estate Loans Portfolio Segment [Member] Financing Receivable, Troubled Debt Restructuring [Line Items] Financing Receivable, Troubled Debt Restructuring [Line Items] Number of Loans Pre-Modification Outstanding Recorded Balance Post-Modification Outstanding Recorded Balance Summary of Aging of Recorded Investment in Past Due Non-covered Loans by Portfolio Class and Category (Table) Financing Receivable, Past Due [Table] Financial Asset, Period Past Due [Axis] Financial Asset, Period Past Due [Axis] Financial Asset, Period Past Due [Domain] Financial Asset, Period Past Due [Domain] Financial Asset, 30 to 89 Days Past Due [Member] Financial Asset, 30 to 89 Days Past Due [Member] Financial Asset, 30 to 89 Days Past Due [Member] Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Total Past Due Financing Receivable, Past Due Current Financing Receivable, Not Past Due Loans, including unearned loan fees Financing Receivable, after Deferred Income Offset, Without Purchased Credit Deteriorated Loans Financing Receivable, after Deferred Income Offset, Without Purchased Credit Deteriorated Loans Schedule of Available-for-sale and Held-to-Maturity Securities Reconciliation Debt Securities, Available-for-sale [Table Text Block] Schedule of Available-for-sale and Held-to-Maturity Securities Reconciliation Debt Securities, Held-to-maturity [Table Text Block] Investments Classified by Contractual Maturity Date Investments Classified by Contractual Maturity Date [Table Text Block] Schedule of Unrealized Loss on Investments Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value [Table Text Block] Commercial Real Estate-Investor Owned Portfolio Segment [Member] Commercial Real Estate-Investor Owned Portfolio Segment [Member] Commercial Real Estate-Investor Owned Portfolio Segment [Member] Commercial Real Estate-Owner Occupied Portfolio Segment [Member] Commercial Real Estate-Owner Occupied Portfolio Segment [Member] Commercial Real Estate-Owner Occupied Portfolio Segment [Member] Construction Real Estate Portfolio Segment [Member] Construction Real Estate Portfolio Segment [Member] Construction Real Estate Portfolio Segment [Member] 2020 Financing Receivable, Originated in Current Fiscal Year 2019 Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 2018 Financing Receivable, Originated Two Years before Latest Fiscal Year 2017 Financing Receivable, Originated Three Years before Latest Fiscal Year 2016 Financing Receivable, Originated Four Years before Latest Fiscal Year Prior Financing Receivable, Originated Five or More Years before Latest Fiscal Year Financing Receivable, Converted Financing Receivable, Converted Financing Receivable, Converted Revolving Loans Financing Receivable, Revolving Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Statement of Financial Position [Abstract] Statement [Table] Statement [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Statement [Line Items] Statement [Line Items] Assets Assets [Abstract] Cash and due from banks Cash and Due from Banks Federal funds sold Federal Funds Sold Interest-earning deposits (including $43,315 and $15,285 pledged as collateral, respectively) Interest-bearing Deposits in Banks and Other Financial Institutions Total cash and cash equivalents Cash, Cash Equivalents, and Federal Funds Sold Interest-earning deposits greater than 90 days Interest-bearing deposits greater than 90 days Interest-bearing deposits greater than 90 days Securities available-for-sale Debt Securities, Available-for-sale Debt Securities, Held-To-Maturity, Net Of Allowance For Credit Losses Debt Securities, Held-To-Maturity, Net Of Allowance For Credit Losses Debt Securities, Held-To-Maturity, Net Of Allowance For Credit Losses Trade and Loans Receivables Held-for-sale, Net, Not Part of Disposal Group Trade and Loans Receivables Held-for-sale, Net, Not Part of Disposal Group Loans Loans and Leases Receivable, Gross Less: Allowance for credit losses on loans Loans and Leases Receivable, Allowance Total loans, net Loans and Leases Receivable, Net Reported Amount, Covered and Not Covered Other investments Other Investments and Securities, at Cost Fixed assets, net Property, Plant and Equipment, Net Accrued interest receivable Goodwill Goodwill Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Other assets Prepaid Expense and Other Assets Total assets Assets Liabilities and Shareholders' Equity Liabilities and Equity [Abstract] Noninterest-bearing deposit accounts Noninterest-bearing Domestic Deposit, Demand Interest-bearing transaction accounts Interest-bearing Domestic Deposit, Checking Money market accounts Deposits, Money Market Deposits Savings accounts Deposits, Savings Deposits Certificates of deposit: Contractual Maturities, Time Deposits, $100,000 or More [Abstract] Brokered Time Deposits, $100,000 or More Other Time Deposits, at or Above FDIC Insurance Limit Total deposits Deposits Subordinated debentures and notes Subordinated Debt FHLB advances Long-term Federal Home Loan Bank Advances Other borrowings Other Borrowings Notes payable Notes Payable to Bank Other liabilities Other Liabilities Total liabilities Liabilities Shareholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $0.01 par value; 5,000,000 shares authorized; 0 shares issued and outstanding Preferred Stock, Value, Issued Common stock, $0.01 par value; 45,000,000 shares authorized; 28,140,602 and 28,067,087 shares issued, respectively Common Stock, Value, Issued Treasury stock, at cost; 1,980,093 and 1,523,842 shares, respectively Treasury Stock, Value Additional paid in capital Additional Paid in Capital Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Total shareholders' equity Total liabilities and shareholders' equity Liabilities and Equity Statement of Comprehensive Income [Abstract] Other comprehensive income, tax: Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Parenthetical Disclosures [Abstract] Cumulative Effect, Period Of Adoption [Axis] Cumulative Effect, Period Of Adoption [Axis] Cumulative Effect, Period Of Adoption [Axis] Cumulative Effect, Period Of Adoption [Domain] Cumulative Effect, Period Of Adoption [Domain] [Domain] for Cumulative Effect, Period Of Adoption [Axis] Cumulative Effect, Period Of Adoption, Adjustment Cumulative Effect, Period Of Adoption, Adjustment [Member] Cumulative Effect, Period Of Adoption, Adjustment [Member] Financing Receivables, Impaired, Troubled Debt Restructuring, Postmodification Reserve Financing Receivables, Impaired, Troubled Debt Restructuring, Postmodification Reserve Financing Receivables, Impaired, Troubled Debt Restructuring, Postmodification Reserve Financing Receivable, Purchased with Credit Deterioration, Discount (Premium) Financing Receivable, Purchased with Credit Deterioration, Discount (Premium) Provision for credit losses Financing Receivable, Allowance for Credit Loss, Threshold of Loans Written Off Financing Receivable, Allowance for Credit Loss, Threshold of Loans Written Off Financing Receivable, Allowance for Credit Loss, Threshold of Loans Written Off Number of loans over 90 days past due and still accruing interest Financing Receivable Recorded Investment 90 Days Past Due And Still Accruing Number of Loans Financing Receivable Recorded Investment 90 Days Past Due And Still Accruing Number of Loans Unadvanced commitments on impaired loans Financing Receivable, Troubled Debt Restructuring, Commitment to Lend Restructuring Reserve Financing Receivable, before Allowance for Credit Loss Financing Receivable, Amount Eligible for Deferred Payment Financing Receivable, Amount Eligible for Deferred Payment Financing Receivable, Amount Eligible for Deferred Payment Financing Receivable, Amount Eligible for Deferral of Both Principal and Interest Financing Receivable, Amount Eligible for Deferral of Both Principal and Interest Financing Receivable, Amount Eligible for Deferral of Both Principal and Interest Loans and Leases Receivable, Deferred Income Loans and Leases Receivable, Deferred Income Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available Financing Receivable, Paycheck Protection Program Financing Receivable, Paycheck Protection Program Financing Receivable, Paycheck Protection Program Debt Securities, Held-to-maturity [Table] Debt Securities, Held-to-maturity [Table] Major Types of Debt and Equity Securities [Axis] Schedule of Held-to-maturity Securities [Line Items] Schedule of Held-to-maturity Securities [Line Items] Debt Securities, Held-to-maturity [Abstract] Debt Securities, Held-to-maturity [Abstract] Amortized Cost Gross Unrealized Gains Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain Gross Unrealized Losses Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss Allowance for Credit Losses Debt Securities, Held-to-maturity, Allowance for Credit Loss Fair Value Debt Securities, Held-to-maturity, Fair Value Total securities held-to-maturity, net Debt Securities, Available-for-sale [Abstract] Debt Securities, Available-for-sale [Abstract] Amortized Cost Debt Securities, Available-for-sale, Amortized Cost Gross Unrealized Gains Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Allowance for Credit Losses Debt Securities, Available-for-sale, Allowance for Credit Loss Fair Value Income Statement [Abstract] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Deposit Account [Member] Deposit Account [Member] Fiduciary and Trust [Member] Fiduciary and Trust [Member] Card Services Revenue [Member] Card Services Revenue [Member] Card Services Revenue [Member] Tax credit activity, net [Member] Tax credit activity, net [Member] Tax credit activity, net [Member] Financial Service, Other [Member] Financial Service, Other [Member] Interest income: Interest and Dividend Income, Operating [Abstract] Interest and fees on loans Interest and Fee Income, Loans and Leases Interest on debt securities: Interest and Dividend Income, Securities, by Taxable Status [Abstract] Taxable Interest Income, Securities, Operating, Taxable Nontaxable Interest Income, Securities, Operating, Tax Exempt Interest on interest-earning deposits Interest Income, Domestic Deposits Dividends on equity securities Dividend Income, Operating Total interest income Interest and Dividend Income, Operating Interest expense: Interest Expense [Abstract] Interest Expense, Deposits Interest Expense, Deposits Subordinated debentures and notes Interest Expense, Subordinated Notes and Debentures FHLB advances Interest Expense, Federal Home Loan Bank and Federal Reserve Bank Advances, Long-term Notes payable and other borrowings Interest Expense, Federal Funds Purchased and Securities Sold under Agreements to Repurchase Total interest expense Interest Expense Net interest income Interest Income (Expense), Net Provision for credit losses Provision for loan losses not covered under FDIC loss share Provision for loan losses not covered under FDIC loss share Net interest income after provision for credit losses Interest Income (Expense), after Provision for Loan Loss Noninterest income: Noninterest Income [Abstract] Total noninterest income Noninterest Income Noninterest expense: Noninterest Expense [Abstract] Employee compensation and benefits Labor and Related Expense Occupancy Occupancy, Net Data processing Information Technology and Data Processing Professional fees Professional Fees Merger-related expenses Merger Related Expenses Merger Related Expenses Other Other Noninterest Expense Total noninterest expense Noninterest Expense Income before income tax expense Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Income tax expense Income Tax Expense (Benefit) Net income Earnings per common share Earnings Per Share, Basic and Diluted [Abstract] Basic (usd per share) Earnings Per Share, Basic Diluted (usd per share) Earnings Per Share, Diluted Recurring basis Fair Value, Recurring [Member] Agency mortgage-backed securities Estimate of Fair Value Measurement [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Assets Loans Receivable, Fair Value Disclosure Liabilities Total liabilities Financial and Nonfinancial Liabilities, Fair Value Disclosure Loans and Leases Receivable, Related Parties [Roll Forward] Loans and Leases Receivable, Related Parties [Roll Forward] Collateral pledged Collateral pledged Collateral pledged Preferred stock, par value Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized Preferred Stock, Shares Authorized Preferred stock, shares issued Preferred Stock, Shares Issued Preferred stock, shares outstanding Preferred Stock, Shares Outstanding Common stock, par value Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Treasury stock, shares Treasury Stock, Shares Entity by Location [Axis] Entity by Location [Axis] Location [Domain] Location [Domain] Debt Securities, Available-for-sale [Line Items] Maximum percentage of shareholders' equity security holdings held of one issuer Maximum percentage of shareholders' equity security holdings held of one issuer Maximum percentage of shareholders' equity security holdings held of one issuer. Securities pledged Debt Securities, Available-for-sale, Restricted Mortgage-backed securities, weighted average life Mortgage-backed securities, weighted average life Mortgage-backed securities, weighted average life Accrued interest receivable, available-for-sale securities Accrued interest receivable, available-for-sale securities Accrued interest receivable, available-for-sale securities Accrued interest receivable, held-to-maturity securities Accrued interest receivable, held-to-maturity securities Accrued interest receivable, held-to-maturity securities Allowance for credit losses on held-to-maturity debt securities Statement of Stockholders' Equity [Abstract] Cash dividends paid on common shares, per share Common Stock, Dividends, Per Share, Cash Paid Issuance under equity compensation plans, shares Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture Net income as reported Weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Additional dilutive common stock equivalents (in shares) Incremental Common Shares Attributable To Additional Dilutive Common Stock Equivalents Incremental Common Shares Attributable To Additional Dilutive Common Stock Equivalents Weighted average diluted common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Basic earnings per common share (in dollars per share) Diluted earnings per common share (in dollars per share) Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Available for sale, Amortized Cost Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract] Due in one year or less Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost Due after one year through five years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost Due after five years through ten years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost Due after ten years Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost Agency mortgage-backed securities Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Amortized Cost Available for sale, Estimated Fair Value Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract] Due in one year or less Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value Due after one year through five years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value Due after five years through ten years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value Due after ten years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value Agency mortgage-backed securities Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value Available for sale, fair value Held to maturity, Amortized Cost Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract] Due in one year or less Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost Due after one year through five years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost Due after five years through ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost Due after ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Amortized Cost Agency mortgage-backed securities Debt Securities, Held-to-maturity, Maturity, without Single Maturity Date, Amortized Cost Held to maturity, Estimated Fair Value Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract] Due in one year or less Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value Due after one year through five years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value Due after five years through ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value Due after ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value Agency mortgage-backed securities Debt Securities, Held-to-maturity, Maturity, without Single Maturity Date, Fair Value Held to maturity, fair value Accumulated Other Comprehensive Income Stockholders' Equity Note Disclosure [Text Block] Common Stock [Member] Common Stock [Member] Treasury Stock [Member] Treasury Stock [Member] Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Retained Earnings [Member] Retained Earnings [Member] Other comprehensive income Other Comprehensive Income (Loss), Net of Tax Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Cash dividends paid on common shares Dividends, Common Stock, Cash Repurchase of common stock Stock Repurchased and Retired During Period, Value Issuance under equity compensation plans, net Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Shares issued in connection with acquisition Shares issued in connection with acquisition Shares issued in connection with acquisition Reclassification for the adoption of new accounting standards Reclassification for the adoption of new accounting standards Reclassification for the adoption of new accounting standards Earnings Per Share Earnings Per Share [Text Block] Cover [Abstract] Document Type Document Type Document Quarterly Report Document Quarterly Report Document Transition Report Document Transition Report Entity File Number Entity File Number Entity Registrant Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Address, City or Town Entity Address, City or Town Entity Address, State or Province Entity Address, State or Province Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Title of 12(b) Security Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Central Index Key Entity Central Index Key Document Period End Date Document Period End Date Current Fiscal Year End Date Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2016-13 Accounting Standards Update 2016-13 [Member] Cumulative Effect, Period Of Adoption, Adjusted Balance Cumulative Effect, Period Of Adoption, Adjusted Balance [Member] Cumulative Effect, Period Of Adoption, Adjusted Balance [Member] Loans Receivable Loans Receivable [Member] Unfunded Loan Commitment Unfunded Loan Commitment [Member] Allowance for credit losses on held-to-maturity debt securities Deferred tax asset Deferred Tax Assets, Net of Valuation Allowance Reserve for unfunded commitments Off-Balance Sheet, Credit Loss, Liability Other comprehensive income (loss), after-tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Change in unrealized gain on available-for-sale debt securities Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax Reclassification adjustment for realized (gain) loss on sale of available-for-sale debt securities Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Reclassification of (gain) loss on held-to-maturity securities Other Comprehensive Loss, Held-to-maturity Security, OTTI, after Tax and Adjustments Change in unrealized loss on cash flow hedges arising during the period Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Reclassification of loss on cash flow hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Total other comprehensive income, after-tax 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] Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of Pre-tax and After-tax Changes in the Components of Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Summary of Recorded Investment by Category of Non-covered Loans Restructured and Subsequently Defaulted (Table) Schedule of Financing Receivables, Troubled Debt Restructurings - Suibsequent Defaults [Line Items] Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Reclassification Adjustments, after Tax [Abstract] Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Reclassification Adjustments, after Tax [Abstract] Change in unrealized gain on available-for-sale debt securities, before tax Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, before Tax Change in unrealized gain on available-for-sale debt securities, tax Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax Change in unrealized gain on available-for-sale debt securities, after tax Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax [Abstract] Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax [Abstract] Reclassification adjustment for realized (gain) loss on sale of available-for-sale debt securities, before tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax Reclassification adjustment for realized (gain) loss on sale of available-for-sale debt securities, tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax Reclassification adjustment for realized (gain) loss on sale of available-for-sale debt securities, after tax Other Comprehensive Loss, Held-to-maturity Security, OTTI, after Tax and Adjustments [Abstract] Other Comprehensive Loss, Held-to-maturity Security, OTTI, after Tax and Adjustments [Abstract] Reclassification of (gain) loss on held-to-maturity securities, before tax Other Comprehensive Loss, Held-to-maturity Security, OTTI, before Tax, after Adjustments Reclassification of (gain) loss on held-to-maturity securities, tax Other Comprehensive Loss, Held-to-maturity Security, OTTI, after Adjustments, Tax Reclassification of (gain) loss on held-to-maturity securities, after tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent [Abstract] Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent [Abstract] Change in unrealized loss on cash flow hedges arising during the period, before tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Change in unrealized loss on cash flow hedges arising during the period, tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax Change in unrealized loss on cash flow hedges arising during the period, after tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract] Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract] Reclassification of loss on cash flow hedges, before tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Reclassification of loss on cash flow hedges, tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax Reclassification of loss on cash flow hedges, after tax OCI, Net of Tax [Abstract] OCI, Net of Tax [Abstract] Total other comprehensive income, before tax Other Comprehensive Income (Loss), before Tax Total other comprehensive income, tax Other Comprehensive Income (Loss), Tax Schedule of Commitments Schedule of Commitments [Table Text Block] Schedule of Commitments [Table Text Block] Summary of Activity in the Allowance for Loan Losses by Portfolio Class and Category Based on Impairment Method [Table] Summary of Activity in the Allowance for Loan Losses by Portfolio Class and Category Based on Impairment Method [Table] Summary of Activity in the Allowance for Loan Losses by Portfolio Class and Category Based on Impairment Method [Table] Allowance for Loan Losses [Roll Forward] Financing Receivable, Allowance for Credit Loss [Line Items] Balance at December 31, 2019 Charge-offs Recoveries Balance