Retirement Benefits [Abstract] EMPLOYEE BENEFIT PLANS Pension and Other Postretirement Benefits Disclosure [Text Block] Receivables [Abstract] Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] Receivable Type [Axis] Receivable Type [Axis] Receivable [Domain] Receivable [Domain] Business Activities Loans Loans From Business Activities [Member] Represents information pertaining to the loans from business activities. Acquired Loans Loans Acquired From Business Combinations [Member] Represents information pertaining to the loans acquired from business combinations. Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Commercial real estate Commercial Real Estate Portfolio Segment [Member] Commercial and industrial Commercial and Industrial Loans Portfolio Segment [Member] Commercial and Industrial Loans Portfolio Segment [Member] Residential Residential Portfolio Segment [Member] Consumer Consumer Portfolio Segment [Member] Class of Financing Receivable [Axis] Class of Financing Receivable, Type [Axis] Class of Financing Receivable [Domain] Class of Financing Receivable, Type [Domain] Construction Construction Loans [Member] Other Other Receivable [Member] Class of financing receivables related to other financing receivables. 1-4 family 1 to 4 Family [Member] Class of financing receivables related to 1 to 4 Family financing receivables. Home equity Home Equity Loan [Member] Impaired loans Financing Receivable, Impaired [Line Items] Impaired Financing Receivable, Recorded Investment [Abstract] Impaired Financing Receivable, Recorded Investment [Abstract] With no related allowance Impaired Financing Receivable, with No Related Allowance, Recorded Investment With an allowance recorded Impaired Financing Receivable, with Related Allowance, Recorded Investment Total Impaired Financing Receivable, Recorded Investment Impaired Financing Receivable, Unpaid Principal Balance [Abstract] Impaired Financing Receivable, Unpaid Principal Balance [Abstract] With no related allowance Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance With an allowance recorded Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance Total Impaired Financing Receivable, Unpaid Principal Balance Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] Related Allowance Impaired Financing Receivable, Related Allowance Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Number of significant acquisitions completed (acquisition) Business Acquisition Number of Significant Acquisitions Completed Represents the number of significant acquisitions completed during the period. Goodwill, impairment Goodwill, Impairment Loss Finite-lived intangible asset, useful life Finite-Lived Intangible Asset, Useful Life Amortization of intangible assets Amortization of Intangible Assets Finite-lived intangible assets, amortization expense, 2019 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Finite-lived intangible assets, amortization expense, 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Two Finite-lived intangible assets, amortization expense, 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Three Finite-lived intangible assets, amortization expense, 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Four Finite-lived intangible assets, amortization expense, 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Five Finite-lived intangible assets, amortization expense, thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Impairment of intangible assets, finite-lived Impairment of Intangible Assets, Finite-lived Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Retirement Plan Type [Axis] Retirement Plan Type [Axis] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Pension Plans Pension Plan [Member] Postretirement Benefits Other Postretirement Benefits Plan [Member] Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Amortization of actuarial (loss) Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax Amortization of prior service credit Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax Actuarial loss (gain) Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax Total recognized in accumulated other comprehensive income Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Total recognized in net periodic pension cost recognized and other comprehensive income Defined Benefit Plan, Amounts Recognized in Net Periodic Benefit Cost and Other Comprehensive Income (Loss) Represents the amounts recognized in net periodic benefit cost and other comprehensive income (loss). Accrued post-retirement liability recognized Defined Benefit Plan Accrued Postretirement Liability Represents the entire liability recognized in the balance sheet that is associated with the defined benefit plans including amount recognized in accumulated other comprehensive income. Stockholders' Equity Note [Abstract] Schedule of Earnings Per Share Basic and Diluted [Table] Schedule of Earnings Per Share Basic and Diluted [Table] Disclosure pertaining to the entity's basic and diluted earnings per share. Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Unvested stock awards Restricted Stock [Member] Employee Stock Option Employee Stock Option [Member] Earnings Per Share Basic and Diluted [Line Items] Earnings Per Share Basic and Diluted [Line Items] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Net income Net Income (Loss) Attributable to Parent Average number of common shares issued (shares) Weighted Average Number of Shares Issued, Basic Less: average number of treasury shares (shares) Weighted Average Number of Shares, Treasury Stock Less: average number of unvested stock award shares (shares) Weighted Average Number of Shares, Restricted Stock Plus: average participating preferred shares (shares) Weighted Average Number of Shares Outstanding, Preferred Stock Weighted Average Number of Shares Outstanding, Preferred Stock Average number of basic common shares outstanding (shares) Weighted Average Number of Shares Outstanding, Basic Incremental common shares attributable to dilutive effect of share-based payment arrangements (shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Average number of diluted common shares outstanding (shares) Weighted Average Number of Shares Outstanding, Diluted Basic earnings per common share (USD per share) Earnings Per Share, Basic Diluted earnings per common share (USD per share) Earnings Per Share, Diluted Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Fixed rate advances Federal Home Loan Bank Fixed Rate Advances [Member] Fixed rate borrowings from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and also in times of liquidity shortages. Weighted Average Weighted Average [Member] Summary of FHLBB advances Debt Instrument [Line Items] Principal Federal Home Loan Bank, Advances, Fiscal Year Maturity [Abstract] 2019 Federal Home Loan Bank, Advances, Maturities Summary, Due in Next Twelve Months 2020 Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Two 2021 Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Three 2022 Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Four 2023 and beyond Federal Home Loan Bank Advances Maturities Summary Due after Four Years of Balance Sheet Date Amount of federal home loan bank advances maturing after the fourth fiscal year following the latest fiscal year. Total FHLBB advances Advances from Federal Home Loan Banks Weighted Average Rate (percent) Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate of Amounts Due [Abstract] 2019 (percent) Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate of Amounts Due within One Year of Balance Sheet Date 2020 (percent) Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate, One to Two Years from Balance Sheet Date 2021 (percent) Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate, Two to Three Years from Balance Sheet Date 2022 (percent) Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate, Three to Four Years from Balance Sheet Date 2023 and beyond (percent) Federal Home Loan Bank Advances Maturities Summary Average Interest Rate of Amounts Due after Four Years of Balance Sheet Date The weighted average interest rate applicable to the Federal Home Loan Bank advances maturing after the fourth fiscal year following the latest fiscal year. Total FHLBB advances (percent) Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End Accounting Policies [Abstract] Summary of Consideration Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Commercial real estate Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Average recorded investment, with no related allowance Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment Cash basis interest income recognized, with no related allowance Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method Average recorded investment with related allowance Impaired Financing Receivable, with Related Allowance, Average Recorded Investment Cash basis interest income recognized, with related allowance Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method Average Recorded Investment Impaired Financing Receivable, Average Recorded Investment Cash Basis Interest Income Recognized Impaired Financing Receivable, Interest Income, Cash Basis Method Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Residential mortgages Consumer loans Construction Real Estate Real Estate Loan [Member] Auto and other Auto And Other Receivable [Member] Class of financing receivables related to auto and other financing receivables. Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Commercial Loan Commercial Loan [Member] Mortgages Mortgages [Member] Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Pass Pass [Member] Special mention Special Mention [Member] Substandard Substandard [Member] Doubtful Doubtful [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] Nonperforming Nonperforming Financial Instruments [Member] Financing Receivable, Recorded Investment [Line Items] Financing Receivable, Recorded Investment [Line Items] Loans Loans and Leases Receivable, Net of Deferred Income SHAREHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE Stockholders' Equity Earnings Per Share and Other Comprehensive Income [Text Block] Stockholders Equity Earnings Per Share And Other Comprehensive Income. Cash and Cash Equivalents [Abstract] Financial Instruments Owned and Pledged as Collateral [Table] Financial Instruments Owned and Pledged as Collateral [Table] Short-term investments pledged as collateral Short-term Investments [Member] CASH AND CASH EQUIVALENTS Financial Instruments Owned and Pledged as Collateral [Line Items] Short-term investments Cash and Cash Equivalents, at Carrying Value Reserve requirement, included in cash and equivalents Restricted Cash and Cash Equivalents Unamortized net loan origination costs Unamortized Loan Origination Fees Represents the amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases. Unamortized net premium on purchased loans Unamortized Discounts or Premiums Represents the amount of premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Total unamortized net costs and premiums Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative [Table] Derivative [Table] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Interest Rate Swap Interest Rate Swap [Member] Liability Class [Axis] Liability Class [Axis] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] FHLBB borrowings Federal Home Loan Bank Borrowings [Member] Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash Flow Hedging Cash Flow Hedging [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Other Non-interest Expense Other Non-interest Expense [Member] Other Non-interest Expense [Member] Derivative [Line Items] Derivative [Line Items] Unrealized (loss) recognized in accumulated other comprehensive loss Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss) Less: Reclassification of unrealized (loss) from accumulated other comprehensive loss to interest expense Interest Expense Less: reclassification of unrealized (loss) from accumulated other comprehensive income to other non-interest expense Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Net tax effect on items recognized in accumulated other comprehensive income Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Other comprehensive income recorded in accumulated other comprehensive income, net of reclassification adjustments and tax effects Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Commitments and Contingencies Disclosure [Abstract] Schedule of Fair Value, Off-balance Sheet Risks [Table] Schedule of Fair Value, Off-balance Sheet Risks [Table] Commitments to originate new loans Loan Origination Commitments [Member] Unused funds on commercial and other lines of credit Unused lines of Credit [Member] Unadvanced funds on home equity lines of credit Unadvanced Funds On Lines Of Credit [Member] Represents information pertaining to unadvanced funds on lines of credit. Unadvanced funds on construction and real estate loans Unadvanced Funds On Loans [Member] Represents information pertaining to unadvanced funds loans. Standby letters of credit Standby Letters of Credit [Member] Lease obligation Capital Lease Obligations [Member] Financial commitments whose contractual amount represents credit risk Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] Total Fair Value Disclosure, Off-balance Sheet Risks, Amount, Liability Schedule of Financing Receivables Past Due [Table] Schedule of Financing Receivables Past Due [Table] Financing Receivables, Period Past Due [Axis] Financing Receivables, Period Past Due [Axis] Financing Receivables, Period Past Due [Domain] Financing Receivables, Period Past Due [Domain] 30-59 Days Past Due Financing Receivables, 30 to 59 Days Past Due [Member] 60-89 Days Past Due Financing Receivables, 60 to 89 Days Past Due [Member] 90 Days Past Due Financing Receivables, Equal to Greater than 90 Days Past Due [Member] Financing Receivable, Recorded Investment, Past Due [Line Items] Financing Receivable, Recorded Investment, Past Due [Line Items] Total Past Due Financing Receivable, Recorded Investment, Past Due Acquired Credit Impaired Financing Receivable, Recorded Investment, Current Total loans Past Due greater than 90 days and Accruing Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing Investments, Debt and Equity Securities [Abstract] Amortized cost Debt Securities, Trading, Amortized Cost Fair value Debt Securities, Trading, and Equity Securities, FV-NI Unrealized gains (losses) Debt Securities, Trading, Unrealized Gain (Loss) Disclosure of Compensation Related Costs, Share-based Payments [Abstract] STOCK-BASED COMPENSATION PLANS Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Banking and Thrift, Interest [Abstract] NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES Interest Income and Interest Expense Disclosure [Text Block] Quarterly Financial Information Disclosure [Abstract] Interest and dividend income Interest and Dividend Income, Operating Interest expense Net interest income Interest Income (Expense), Net Non-interest income Noninterest Income Total net revenue Revenues Provision for loan losses Provision for Loan and Lease Losses Non-interest expense Noninterest Expense Income from continuing operations before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Income tax expense Income Tax Expense (Benefit) Net income Basic earnings/(loss) per common share (USD per share) Diluted earnings/(loss) per share (USD per share) Weighted average common shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (shares) Diluted (shares) Charge to re-measure net deferred tax asset Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense Summary of Financial Instruments Outstanding Whose Contract Amounts Represent Credit Risk Schedule of Commitment of Financial Instrument with off Balance Sheet Risks [Table Text Block] Tabular disclosure of commitment to financial instruments whose contract amounts represent credit risk which are off-balance sheet. Deposits [Abstract] Summary of Time Deposits Schedule of Time Deposits [Table Text Block] Tabular disclosure of deposits that cannot be withdrawn before a set date without penalty or for which notice of withdrawal is required. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts. Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Non-maturity deposits (core deposit intangible) Non Maturity Deposits [Member] Represents information pertaining to non-maturity deposits. Insurance contracts Insurance Contracts [Member] Represents information pertaining to insurance contracts. All other intangible assets Other Intangible Assets [Member] Gross Intangible Assets Finite-Lived Intangible Assets, Gross Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Net Intangible Assets Finite-Lived Intangible Assets, Net Condensed Financial Information Disclosure [Abstract] Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statement [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Reportable legal entity Reportable Legal Entities [Member] Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Berkshire Hills Bancorp Parent Company [Member] Condensed balance sheets Condensed Balance Sheet Statements, Captions [Line Items] Proceeds from intercompany subordinated note converted to equity Proceeds from Contributions from Affiliates Intercompany subordinated notes Intercompany Subordinated Notes Represents intercompany subordinated notes. Assets Assets [Abstract] Cash due from Berkshire Bank Cash and Due from Banks Investment in subsidiaries Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Securities available for sale, at fair value Debt Securities, Available-for-sale Other assets Other Assets Total assets Assets Liabilities and Shareholders’ Equity Liabilities [Abstract] Subordinated notes Junior Subordinated Notes Accrued expenses Accrued Liabilities Shareholders’ equity Stockholders' Equity Attributable to Parent Total liabilities and shareholders’ equity Liabilities and Equity Statement of Stockholders' Equity [Abstract] Non-interest income (in-scope of Topic 606) Revenue from Contract with Customer, Excluding Assessed Tax Offering costs Payments of Stock Issuance Costs Cash dividends declared, common stock (USD per share) Common Stock, Dividends, Per Share, Declared Cash dividends declared, preferred stock (USD per share) Preferred Stock, Dividends Per Share, Declared Other Liabilities Disclosure [Abstract] Summary of other liabilities Other Liabilities [Table Text Block] Revenue from Contract with Customer [Abstract] REVENUE Revenue from Contract with Customer [Text Block] OTHER COMMITMENTS, CONTINGENCIES, AND OFF-BALANCE SHEET ACTIVITIES Commitments and Contingencies Disclosure [Text Block] Basis of Presentation and Consolidation Consolidation, Policy [Policy Text Block] Reclassifications Reclassification, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Business Combinations Business Combinations Policy [Policy Text Block] Cash and Cash equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Trading Security Marketable Securities, Policy [Policy Text Block] Securities Marketable Securities Held to Maturity and Available For Sale Securities [Policy Text Block] Disclosure of accounting policy for investments in debt and equity securities that are classified as held-to-maturity or available-for-sale. Loans Held for Sale Finance, Loan and Lease Receivables, Held-for-sale, Policy [Policy Text Block] Loans Finance, Loan and Lease Receivables, Held-for-investment, Policy [Policy Text Block] Acquired Loans Certain Loans and Debt Securities Acquired in Transfer, Recognizing Interest Income on Impaired Loans, Policy [Policy Text Block] Allowance for Loan Losses Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block] Bank-Owned Life Insurance Bank Owned Life Insurance Policy [Policy Text Block] Disclosure of accounting policy for bank-owned life insurance policies. Foreclosed and Repossessed Assets Finance, Loan and Lease Receivables, Held for Investments, Foreclosed Assets Policy [Policy Text Block] Capitalized Servicing Rights Transfers and Servicing of Financial Assets, Servicing of Financial Assets, Policy [Policy Text Block] Premises and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Other Intangibles Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Transfers of Financial Assets Transfers and Servicing of Financial Assets, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Insurance Commissions and Revenues Revenue from Contract with Customer [Policy Text Block] Advertising Costs Advertising Costs, Policy [Policy Text Block] Stock-Based Compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Wealth Management Wealth Management Assets [Policy Text Block] Disclosure of accounting policy for wealth management assets. Derivative Instruments and Hedging Activities Derivatives, Policy [Policy Text Block] Off-Balance Sheet Financial Instruments Off-Balance-Sheet Credit Exposure, Policy [Policy Text Block] Fair Value Hierarchy Fair Value Measurement, Policy [Policy Text Block] Employee Benefits Pension and Other Postretirement Plans, Policy [Policy Text Block] Operating Segments Segment Reporting, Policy [Policy Text Block] Recent Accounting Pronouncements and Future Application of Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Net prior service cost (credit) Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Tax Net actuarial (gain) loss Accumulated Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), after Tax Total recognized in accumulated other comprehensive income Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax Fair Value Disclosures [Abstract] Fair Value Option, Disclosures [Table] Fair Value Option, Disclosures [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Recurring Fair Value, Measurements, Recurring [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] Level 2 Fair Value, Inputs, Level 2 [Member] Loans Held for Sale Loans Held For Sale [Member] Represents the details pertaining to loans held for sale. Loans Held for Sale Fair Value, Option, Quantitative Disclosures [Line Items] Aggregate Fair Value Loans Held-for-sale, Fair Value Disclosure Aggregate Unpaid Principal Disposal Group, Including Discontinued Operation, Assets Aggregate Fair Value Less Aggregate Unpaid Principal Fair Value, Option, Aggregate Differences, Loans and Long-term Receivables Schedule of Financing Receivable, Allowance for Credit Losses [Table] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Allowance for loan losses Financing Receivable, Allowance for Credit Losses [Line Items] Activity in the allowance for loan losses Allowance for Loan and Lease Losses [Roll Forward] Balance at beginning of year Loans and Leases Receivable, Allowance Charged-off loans Allowance for Loan and Lease Losses, Write-offs Recoveries on charged-off loans Allowance for Loan and Lease Loss, Recovery of Bad Debts Balance at end of year Individually evaluated for impairment Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Collectively evaluated Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Total Schedule of changes in the Projected Benefit Obligation and Plan Assets Schedule of Net Funded Status [Table Text Block] Schedule of Amounts Recognized in Statement of Financial Position Schedule of Amounts Recognized in Balance Sheet [Table Text Block] Schedule of Net Periodic Cost Schedule of Net Benefit Costs [Table Text Block] Schedule of Changes in Plan Assets and Benefit Obligations Recognized in Accumulated Other Comprehensive Income Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] Schedule of Principal Actuarial Assumptions Schedule of Assumptions Used [Table Text Block] Schedule of Fair Values of the Plan's Assets by Asset Category and Level Within the Fair Value Hierarchy Schedule of Allocation of Plan Assets [Table Text Block] Schedule of Estimated Benefit Payments Schedule of Expected Benefit Payments [Table Text Block] Schedule of Amounts in Accumulated Other Comprehensive Income That Have Not Yet Been Recognized as Components of Net Periodic Benefit Cost Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block] Income Tax Disclosure [Abstract] Effective Income Tax Rate Reconciliation, Amount [Abstract] Effective Income Tax Rate Reconciliation, Amount [Abstract] Statutory tax rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount State taxes, net of federal tax benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Tax exempt income - investments, net Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount Bank-owned life insurance Effective Income Tax Rate Reconciliation, Bank Owned Life Insurance Effective Income Tax Rate Reconciliation, Bank Owned Life Insurance Non-deductible merger costs Income Tax Reconciliation Disallowed Merger Costs The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to the disallowed merger costs. Tax credits, net of basis reduction Effective Income Tax Rate Reconciliation, Tax Credit, Amount Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Impact of federal tax reform enactment (1) Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Amount Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Amount Other, net Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount Income tax expense Effective Income Tax Rate Reconciliation, Percent [Abstract] Effective Income Tax Rate Reconciliation, Percent [Abstract] Statutory tax rate (percent) Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent State taxes, net of federal tax benefit (percent) Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Tax exempt income - investments, net (percent) Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent Bank-owned life insurance (percent) Effective Income Tax Rate Reconciliation, Bank Owned Life Insurance, Percent Effective Income Tax Rate Reconciliation, Bank Owned Life Insurance, Percent Non-deductible merger costs (percent) Effective Income Tax Rate Reconciliation Disallowed Merger Costs The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to the disallowed merger costs. Tax credits, net of basis reduction (percent) Effective Income Tax Rate Reconciliation, Tax Credit, Percent Change in valuation allowance (percent) Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Impact of federal tax reform enactment (percent) Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Percent Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Percent Other, net (percent) Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Effective tax rate (percent) Effective Income Tax Rate Reconciliation, Percent Net interest income Net interest income after provision for loan losses Interest Income (Expense), after Provision for Loan Loss Total non-interest income Total non-interest expense Income Statement [Abstract] Statement [Table] Statement [Table] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Total fee income Banking [Member] Mortgage banking income Mortgage Banking [Member] Loan related income Bank Servicing [Member] Deposit related fees Deposit Account [Member] Insurance commissions and fees Insurance Revenue [Member] Insurance Revenue [Member] Wealth management fees Asset Management Fees [Member] Asset Management Fees [Member] Statement [Line Items] Statement [Line Items] Interest and dividend income Interest and Dividend Income, Operating [Abstract] Loans Interest and Fee Income, Loans and Leases Securities and other Interest and Dividend Income, Securities, Operating Total interest and dividend income Interest expense Interest Expense [Abstract] Deposits Interest Expense, Deposits Borrowings and subordinated notes Interest Expense, Borrowings Total interest expense Non-interest income Noninterest Income [Abstract] Other Noninterest Income, Other (Loss)/Gain on securities, net Debt and Equity Securities, Gain (Loss) Gain on sale of business operations, net Gain (Loss) on Disposition of Business Loss on termination of hedges Gain Loss on Termination of Derivative Instruments Designated as Hedging Instruments Represents the amount of gain (loss) recorded during the reporting period related to termination of hedging derivative instruments. Total non-interest income Non-interest expense Noninterest Expense [Abstract] Compensation and benefits Labor and Related Expense Occupancy and equipment Occupancy and Equipment This element represent as Occupancy And Equipment. Technology and communications Communications and Information Technology Marketing and promotion Marketing Expense Professional services Professional Fees FDIC premiums and assessments Federal Deposit Insurance Corporation Premium Expense Other real estate owned and foreclosures Other Real Estate Owned This element represent as Other Real Estate Owned. Merger, restructuring and conversion related expenses Other Nonrecurring Expense Other Other Noninterest Expense Total non-interest expense Preferred stock dividend Preferred Stock Dividends, Income Statement Impact Income available to common shareholders Net Income (Loss) Available to Common Stockholders, Basic Earnings per common share: Earnings Per Share, Basic and Diluted [Abstract] Basic earnings per share (USD per share) Diluted earnings per share (USD per share) Number of grades in internal loan rating system (grade) Internal Loan Rating System Number of Grades The number of grades in the reporting entity's internal loan rating system. Period within which loans are current, based on which risk rating is assigned Financing Receivable Risk Rating Current Period Represents the current period of loans based on which risk rating is assigned to loans. Delinquency period of loans based on which risk rating is assigned Financing Receivable Risk Rating Delinquency Period Represents the delinquency period of loans based on which risk rating is assigned to loans. Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Non-recurring Fair Value, Measurements, Nonrecurring [Member] Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) Fair Value Measurement Inputs and Valuation Techniques [Line Items] Summary of assets and financial liabilities measured at fair value on a recurring basis segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of loans held for sale Fair Value Option, Disclosures [Table Text Block] Schedule of changes in level 3 assets and liabilities that were measured at fair value on a recurring basis Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Table Text Block] Tabular disclosure of the fair value measurement of assets and liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset and liabilities. Schedule of quantitative information about the significant unobservable inputs within Level 3 Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Summary of applicable non-recurring fair value measurements Fair Value Measurements, Nonrecurring [Table Text Block] CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY Condensed Financial Information of Parent Company Only Disclosure [Text Block] Schedule of Activity in the Allowance for Loan Losses Allowance for Credit Losses on Financing Receivables [Table Text Block] Schedule of Loans by Risk Rating Financing Receivable Credit Quality Indicators [Table Text Block] Summary of Information About Total Loans Rated Special Mention or Lower Schedule of Financing Receivable Rated Special Mention or Lower [Table Text Block] Tabular disclosure of financing receivables, rated as special mention or lower. 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 holding (loss)/gain on AFS securities Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] Net (loss) on effective cash flow hedging derivatives Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Net unrealized holding (loss) on pension plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Accumulated other comprehensive (loss)/income AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Other accumulated comprehensive (loss)/income, before tax AOCI before Tax, Attributable to Parent Income taxes related to items of accumulated other comprehensive (loss)/income AOCI Tax, Attributable to Parent Total shareholders’ equity Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Hedging derivatives Designated as Hedging Instrument [Member] Non-hedging derivatives Not Designated as Hedging Instrument [Member] Economic Hedging Economic Hedging [Member] Represents information pertaining to derivatives that are not designated as accounting hedges but are being used as economic hedges. Reverse Interest Rate Swaps Reverse Interest Rate Swaps [Member] Represents information pertaining to the reverse interest rate swaps which can be used to synthetically convert fixed rate debt to floating. Risk Participation Agreements Risk Participation Agreements [Member] Represents the information pertaining to risk participation agreements with dealer banks. Forward Commitments Forward Commitments [Member] Represents the forward commitments that are free-standing derivatives which are carried at fair value with changes recorded in the mortgage banking component of noninterest income in the entity's consolidated statements of income. Commitments to lend Commitments to Extend Credit [Member] Industrial Revenue Bond Industrial Revenue Bond [Member] Represents information pertaining to the industrial revenue bond, a financing instrument issued by designated local industrial development boards (IDB's) or other issuers authorized by state law. Commercial loan Commercial Paper [Member] Unrealized gain (loss) recognized in other non-interest income Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments (Unfavorable) Favorable change in credit valuation adjustment recognized in other non-interest income Derivative Instruments Favorable Changes in Credit Valuation Adjustment Recognized in Other Non Interest Income The favorable changes in credit valuation adjustments on derivative instruments that were recognized in other non-interest income during the current period. Realized gain (loss) in other non-interest income Gain (Loss) on Sale of Derivatives Commercial loans Commercial Portfolio Segment [Member] Modifications that subsequently defaulted, number of contracts (contract) Financing Receivable, Modifications, Subsequent Default, Number of Contracts Modifications that subsequently defaulted, recorded investment Financing Receivable, Modifications, Subsequent Default, Recorded Investment Measurement Input Type [Axis] Measurement Input Type [Axis] Measurement Input Type [Domain] Measurement Input Type [Domain] Discount Rate Measurement Input, Discount Rate [Member] Closing Ratio Measurement Input, Closing Ratio [Member] Measurement Input, Closing Ratio [Member] Origination Costs, per loan Measurement Input, Origination Costs [Member] Measurement Input, Origination Costs [Member] Constant prepayment rate (CPR) Measurement Input, Constant Prepayment Rate [Member] Forward Commitments Forward Contracts [Member] Commitments to Lend Capitalized Servicing Rights Capitalized Mortgage Servicing Rights [Member] Represents the details pertaining to capitalized mortgage servicing rights. Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Discounted Cash Flow Valuation Technique, Discounted Cash Flow [Member] Pricing Model Pricing Model Valuation Technique [Member] Pricing model approach valuation technique used to measure fair value. Historical Trend Historical Trend Valuation Technique [Member] Historical trend approach valuation technique used to measure fair value. Level 3 Fair Value, Inputs, Level 3 [Member] Trading Security Debt Securities, Trading Derivative Asset Derivative Asset Capitalized Servicing Rights Servicing Asset Total Fair Value, Net Asset (Liability) Trading Security, Input Debt Securities, Trading, Measurement Input Derivative Asset, Input Derivative Asset, Measurement Input Capitalized Servicing Rights, Input Servicing Asset, Measurement Input Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] Trading Security Trading Assets, Excluding Debt and Equity Securities [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] Number of transfers from Level 3 to Level 2 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Number Of Transfers Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3, Number Of Transfers Value of transfer from Level 3 to Level 2 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Number of securities in the portfolio (security) Investment Portfolio Number of Securities Represents the number of securities in the entity's security portfolio. Gain (losses) in fair value of loans held for sale included in earnings Fair Value, Option, Credit Risk, Gains (Losses) on Assets Origination of loans held for sale Payments for Origination of Mortgage Loans Held-for-sale Sales of loans originated as held for sale Proceeds from Sale and Collection of Loans Held-for-sale Junior subordinated debentures re-price period Junior Subordinated Debentures Re-price Period Represents the re-price period of junior subordinated debentures. OTHER LIABILITIES Other Liabilities Disclosure [Text Block] Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Table] Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Table] Schedule of information required and determined to be provided for purposes of reconciling beginning and ending balances of fair value measurements of assets and liabilities using significant unobservable inputs (level 3). Such reconciliation, separately presenting changes during the period, at a minimum, may include, but is not limited to: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income, and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset and liabilities. Forward Commitments Derivative Financial Instruments, Liabilities [Member] Capitalized servicing rights Changes in Level 3 assets and liabilities that were measured at fair value on a recurring basis Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Changes in Level 3 assets that were measured at fair value on a recurring basis Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balance at the beginning of the period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Unrealized (loss) gain, net recognized in other non-interest income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Paydown of trading security Accretion (Amortization) of Discounts and Premiums, Investments Transfers to loans held for sale Transfer of Portfolio Loans and Leases to Held-for-sale Additions to servicing rights Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) Balance at the end of the period Unrealized gains (losses) relating to instruments still held at the end of the period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Related to Assets Still Held This element represents the total unrealized net gains included in net income related to assets still held as of the balance sheet date. Statement of Comprehensive Income [Abstract] Other comprehensive income (loss), before tax: Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent [Abstract] Changes in unrealized gains and losses on securities available-for-sale Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, before Tax Changes in unrealized gains and losses on derivative hedges Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax Changes in unrealized gains and losses on pension Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax Total other comprehensive (loss)/income, before tax Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Income taxes related to other comprehensive income (loss): Other Comprehensive Income (Loss), Tax, Parenthetical Disclosures [Abstract] Changes in unrealized gains and losses on securities available-for-sale Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax Changes in unrealized gains and losses on derivative hedges Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax Changes in unrealized gains and losses on pension Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax Total income tax (expense) benefit related to other comprehensive income (loss) Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Total other comprehensive (loss)/income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Total comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Schedule of Loans Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Total Unamortized Net Costs and Premiums Included in the Total Loans for Historical Loans Schedule of Unamortized Net Costs and Premiums on Accounts Notes Loans and Financing Receivable [Table Text Block] Tabular disclosure of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Schedule of Activity in the Accretable Yield for the Acquired Loan Portfolio that Falls Under the Purview of ASC 310-30, Accounting for Certain Loans or Debt Securities Acquired in a Transfer Schedule of Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Accretable Yield Movement [Table Text Block] Tabular disclosure of changes in accretable yield for purchased credit impaired finance receivables by way of additions, accretion, reclassifications and disposals during the period. Summary of Past Due Loans Past Due Financing Receivables [Table Text Block] Summary of Information Pertaining to Non-accrual Loans Schedule of Financing Receivables, Non Accrual Status [Table Text Block] Schedule of Loans Evaluated for Impairment Schedule of Loans Evaluated for Impairment [Table Text Block] Tabular disclosure related to loans evaluated for impairment. Summary of Impaired Loans Impaired Financing Receivables [Table Text Block] Summary of the Average Recorded Investment and Interest Income Recognized on Impaired Loans Impaired Financing Receivables Average Balances and Related Interest Income Recognized [Table Text Block] Tabular disclosure of average recorded investment in impaired loans and related interest income recognized for the periods indicated. Schedule of Recorded Investment and Number of Modifications for TDRs Identified During the Period Troubled Debt Restructurings on Financing Receivables [Table Text Block] Schedule of TDR Activity Financing Receivable Troubled Debt Restructuring Activity [Table Text Block] Tabular disclosure of activity of troubled debt restructuring financial receivables. Schedule of Net Interest Income After Provision for Loan Losses Interest Income and Interest Expense Disclosure [Table Text Block] Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Employee benefit plans Defined Benefit Plan Disclosure [Line Items] Change in projected benefit obligation: Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Projected benefit obligation at beginning of year Defined Benefit Plan, Benefit Obligation Service Cost Defined Benefit Plan, Service Cost Interest cost Defined Benefit Plan, Interest Cost Participant contributions Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant Actuarial loss (gain) Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) Benefits paid Defined Benefit Plan, Benefit Obligation, Benefits Paid Settlements Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement Projected benefit obligation at end of year Accumulated benefit obligation Defined Benefit Plan, Accumulated Benefit Obligation Change in fair value of plan assets: Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Fair value of plan assets at plan beginning of year Defined Benefit Plan, Plan Assets, Amount Actual return on plan assets Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) Contributions by employer Defined Benefit Plan, Plan Assets, Contributions by Employer Benefits paid Defined Benefit Plan, Plan Assets, Benefits Paid Contributions by participant Defined Benefit Plan, Plan Assets, Contributions by Plan Participant Settlements Defined Benefit Plan, Plan Assets, Payment for Settlement Fair value of plan assets at end of year Funded status of the plan Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract] Underfunded status Defined Benefit Plan, Funded (Unfunded) Status of Plan Property, Plant and Equipment [Abstract] PREMISES AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] Amortized Cost Security Owned and Pledged as Collateral Amortized Cost [Abstract] Securities pledged to swap counterparties Security Owned and Pledged as Collateral for Interest Rate Swap Amortized Cost Represents the cost of financial instrument held by the entity for its own account (proprietary securities) and pledged to swap counterparties as collateral for interest rate swap transactions. Securities pledged for municipal deposits Security Owned and Pledged as Collateral for Municipal Deposits Amortized Cost Represents the cost of financial instrument held by the entity for its own account (proprietary securities) and pledged for municipal deposits. Securities pledged, amortized cost Security Owned and Pledged as Collateral Amortized Cost Represents the cost of financial instrument held by the entity for its own account (proprietary securities). Fair Value Security Owned and Pledged as Collateral, Fair Value [Abstract] Securities pledged to swap counterparties Security Owned and Pledged as Collateral for Interest Rate Swap Fair Value Fair value of financial instrument held by the entity for its own account (proprietary securities) that are carried at fair value and pledged to swap counterparties as collateral for interest rate swap transactions. Securities pledged for municipal deposits Security Owned and Pledged as Collateral for Municipal Deposits Fair Value Fair value of financial instrument held by the entity for its own account (proprietary securities) that are carried at fair value and pledged as collateral for municipal deposits. Securities pledged, fair value Security Owned and Pledged as Collateral, Fair Value Components of net realized gains and losses on the sale of AFS securities Debt Securities, Available-for-sale, Realized Gain (Loss) [Abstract] Gross recognized gains Debt Securities, Available-for-sale, Realized Gain Gross recognized losses Debt Securities, Available-for-sale, Realized Loss, Excluding Other-than-temporary Impairment Net recognized (losses)/gains Debt Securities, Available-for-sale, Realized Gain (Loss), Excluding Other-than-temporary Impairment INCOME TAXES Income Tax Disclosure [Text Block] Other Assets [Abstract] Capitalized servicing rights Servicing Asset at Amortized Cost Accrued interest receivable Interest Receivable Accrued federal and state tax receivable Income Taxes Receivable Derivative assets Assets held for sale Other Other Assets, Miscellaneous Total other assets Number of modifications (modification) Financing Receivable, Modifications, Number of Contracts Pre-Modification Outstanding Recorded Investment Financing Receivable, Modifications, Pre-Modification Recorded Investment Post-Modification Outstanding Recorded Investment Financing Receivable, Modifications, Post-Modification Recorded Investment Projected benefit obligation, discount rate Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Net periodic pension cost, discount rate Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate Net periodic pension cost, long term rate of return on plan assets Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets Investment Holdings [Table] Investment Holdings [Table] Municipal bonds and obligations US States and Political Subdivisions Debt Securities [Member] Agency collateralized mortgage obligations Collateralized Debt Obligations [Member] Agency mortgage-backed securities Residential Mortgage Backed Securities Guaranteed By U S Government [Member] Debt securities collateralized by residential real estate mortgage loans, guaranteed by US Government. Agency commercial mortgage-backed securities Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] Corporate bonds Corporate Bond Securities [Member] Trust preferred securities Trust Preferred Securities Subject to Mandatory Redemption [Member] Tax advantaged economic development bonds Tax Advantaged Economic Development Bonds [Member] Represents the information pertaining to the tax advantaged economic development bonds. Other bonds and obligations Other Debt Obligations [Member] Investment Holdings [Line Items] Investment Holdings [Line Items] Securities available for sale Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract] Amortized Cost Debt Securities, Available-for-sale, Amortized Cost Available-for-sale debt securities, accumulated gross unrealized gain, before tax Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Available-for-sale debt securities, accumulated gross unrealized loss, before tax Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Securities available for sale Securities held to maturity Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract] Amortized Cost Debt Securities, Held-to-maturity Held-to-maturity securities, accumulated unrecognized holding gain Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain Held-to-maturity securities, accumulated unrecognized holding loss Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss Held-to-maturity securities, fair value Debt Securities, Held-to-maturity, Fair Value Marketable equity securities, amortized cost Equity Securities, FV-NI, Cost Marketable equity securities, gross unrealized gains Equity Securities, FV-NI, Unrealized Gain Marketable equity securities, gross unrealized losses Equity Securities, FV-NI, Unrealized Loss Marketable equity securities, fair value Equity Securities, FV-NI Amortized Cost Debt Securities, Available-for-sale and Held-to-maturity, and Equity Securities, FV-NI, Amortized Cost Represents the cost of debt and equity securities, which are categorized as held-to-maturity and available-for-sale, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. Gross Unrealized Gains Debt Securities, Available-for-sale and Held-to-maturity, and Equity Securities, FV-NI, Accumulated Gross Unrealized Gain, before Tax Represents the gross unrealized gains for securities, at a point in time, which are categorized as held-to-maturity and available-for-sale securities. Gross Unrealized Losses Debt Securities, Available-for-sale and Held-to-maturity, and Equity Securities, FV-NI, Accumulated Gross Unrealized Loss, before Tax Represents the gross unrealized losses for securities, at a point in time, which are categorized as held-to-maturity and available-for-sale securities. Fair Value Debt Securities, Available-for-sale and Held-to-maturity, and Equity Securities, FV-NI Debt Securities, Available-for-sale and Held-to-maturity, and Equity Securities, FV-NI Level 1 Fair Value, Inputs, Level 1 [Member] Defined Benefit Plan, Plan Assets, Category [Axis] Defined Benefit Plan, Plan Assets, Category [Axis] Defined Benefit Plan, Plan Assets, Category [Domain] Defined Benefit Plan, Plan Assets, Category [Domain] Equity Mutual Funds, Large-Cap Defined Benefit Plan, Equity Mutual Funds, Large Cap [Member] Defined Benefit Plan, Equity Mutual Funds, Large Cap [Member] Equity Mutual Funds, Mid-Cap Defined Benefit Plan, Equity Securities, Mid Cap [Member] Equity Mutual Funds, Small-Cap Defined Benefit Plan, Equity Securities, Small Cap [Member] Equity Mutual Funds, International Defined Benefit Plan, Equity Securities, Non-US [Member] Fixed Income Funds Fixed Income Funds [Member] Intermediate Duration Intermediate Duration [Member] Intermediate Duration [Member] Cash Equivalents - money market Money Market Funds [Member] Defined benefit plan, fair value of plan assets Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Balance at Beginning of Year Accumulated Other Comprehensive Income (Loss), Net of Tax Other comprehensive gain/(loss) before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Amounts reclassified from accumulated other comprehensive income Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Less: amounts reclassified from accumulated other comprehensive income (loss) related to adoption of ASU 2016-01 and ASU 2018-02 Reclassification From AOCI, Accounting Standards Update, Current Period, Net Of Tax, Attributable To Parent Reclassification From AOCI, Accounting Standards Update, Current Period, Net Of Tax, Attributable To Parent Balance at End of Period Statement of Financial Position [Abstract] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Series B Convertible Preferred Stock Convertible Preferred Stock [Member] Preferred stock, par value (USD per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized (shares) Preferred Stock, Shares Authorized Preferred stock, shares issued (shares) Preferred Stock, Shares Issued Preferred stock, shares outstanding (shares) Preferred Stock, Shares Outstanding Common stock, par value (USD per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (shares) Common Stock, Shares Authorized Common stock, shares issued (shares) Common Stock, Shares, Issued Common stock, shares outstanding (shares) Common Stock, Shares, Outstanding Treasury stock, shares (shares) Treasury Stock, Shares Schedule of Quarterly Results of Operations Quarterly Financial Information [Table Text Block] TRADING SECURITY Disclosure of Trading Securities and Certain Trading Assets [Text Block] The entire disclosure for trading securities. LOAN LOSS ALLOWANCE Allowance for Credit Losses [Text Block] Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] Balance at beginning of period Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Accretion Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion Additions Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Additions Net reclassification from/(to) nonaccretable difference Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications (to) from Nonaccretable Difference Payments received, net Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Payments Received Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Payments Received Reclassification to TDR Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications to Troubled Debt Restructuring Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications to Troubled Debt Restructuring Disposals Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Disposals of Loans Balance at end of period Servicing Asset at Amortized Cost [Table] Servicing Asset at Amortized Cost [Table] Servicing Asset at Amortized Cost [Line Items] Servicing Asset at Amortized Cost [Line Items] Mortgage loans sold and serviced for others Proceeds from Sale of Mortgage Loans Held-for-sale Servicing fees Contractually Specified Servicing Fees, Amount Weighted average discount rate (as a percent) Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate Pre-payment speed (as a percent) Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Prepayment Speed Summary of securities available for sale ("AFS") and securities Marketable Securities [Table Text Block] Schedule of amortized cost and estimated fair value of available for sale (AFS) and held to maturity (HTM) securities, segregated by contractual maturity Investments Classified by Contractual Maturity Date [Table Text Block] Schedule of amortized cost and fair values of pledged securities Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block] Schedule of components of net realized gains and losses on the sale of AFS securities Schedule of Realized Gain (Loss) [Table Text Block] Schedule of securities with unrealized losses, segregated by the duration of their continuous unrealized loss positions Schedule of Unrealized Loss on Investments [Table Text Block] Available for sale, Amortized Cost Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract] Within 1 year Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost Over 1 year to 5 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost Over 5 years to 10 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Amortized Cost Over 10 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost Total bonds and obligations Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost Mortgage-backed securities Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Amortized Cost Available for sale, Fair Value Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract] Within 1 year Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Over 1 year to 5 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Over 5 years to 10 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Fair Value Over 10 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value Total bonds and obligations Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value Mortgage-backed securities Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value Available-for-securities Held to maturity, Amortized Cost Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract] Within 1 year Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost Over 1 year to 5 years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost Over 5 years to 10 years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Amortized Cost Over 10 years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost Total bonds and obligations Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Amortized Cost Mortgage-backed securities Debt Securities, Held-to-maturity, Maturity, without Single Maturity Date, Amortized Cost Held to maturity, Fair Value Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract] Within 1 year Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Over 1 year to 5 years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Over 5 years to 10 years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Fair Value Over 10 years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value Total bonds and obligations Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Fair Value Mortgage-backed securities Debt Securities, Held-to-maturity, Maturity, without Single Maturity Date, Fair Value Held-to-maturity securities Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Commerce Bancshares Corporation Commerce Bancshares Corporation [Member] Commerce Bancshares Corporation [Member] Common stock Common Stock [Member] Preferred Stock Preferred Stock [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Stock issued to Commerce common shareholders Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Cash in lieu paid to Commerce shareholders Payments to Acquire Businesses, Gross Total consideration paid Business Combination, Consideration Transferred Cash and short-term investments Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Short-term Investments Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Short-term Investments Cash and short-term investments, fair value adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Cash and Short-term Investments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Cash and Short-term Investments Investment securities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Marketable Securities Investment securities, fair value adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Marketable Securities Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Marketable Securities Loans, net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financial Assets Loans, net, fair value adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets Premises and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Premises and equipment, fair value adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment Core deposit intangibles Business Combinations, Recognized Identifiable Assets Acquired and Liabilities Assumed, Core Deposit Intangibles Business Combinations, Recognized Identifiable Assets Acquired and Liabilities Assumed, Core Deposit Intangibles Core deposit intangibles, fair value adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Core Deposit Intangibles Business Combination, Provisional Information, Initial Accounting Incomplete, Core Deposit Intangibles Deferred tax assets, net Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Deferred tax assets, net, fair value adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Deferred Tax Assets Business Combination, Provisional Information, Initial Accounting Incomplete, Deferred Tax Assets Goodwill and other intangibles Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Goodwill And Other Intangibles Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Goodwill And Other Intangibles Goodwill and other intangibles, fair value adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Goodwill and Other Intangible Assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Goodwill and Other Intangible Assets Other assets Business Combinations, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Assets Business Combinations, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Assets Other assets, fair value adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Assets Deposits Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits Deposits, fair value adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deposits Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deposits Borrowings Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt Borrowings, fair value adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Long-term Debt Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Long-term Debt Other liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Liabilities Assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Liabilities Assumed Other liabilities, fair value adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Liabilities Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Liabilities Total identifiable net assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Total identifiable net assets, fair value adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assets and Liabilities, Net Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assets and Liabilities, Net Goodwill Goodwill Impaired loans Impaired Loans [Member] Represents the details pertaining to impaired loans. Assets, fair value Assets, Fair Value Disclosure DEPOSITS Deposit Liabilities Disclosures [Text Block] Equity [Abstract] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Class of Stock [Line Items] Class of Stock [Line Items] Right to receive (shares) Convertible Preferred Stock, Shares Issued upon Conversion, Right To Receive Convertible Preferred Stock, Shares Issued upon Conversion, Right To Receive Shares issued upon conversion (shares) Convertible Preferred Stock, Shares Issued upon Conversion Preferred stock outstanding (shares) Preferred stock issued (shares) Schedule of Non-interest Income, Segregated by Revenue Streams In-scope and Out-of-scope of Topic 606, Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Common Stock Additional paid-in capital Additional Paid-in Capital [Member] Unearned compensation Deferred Compensation, Share-based Payments [Member] Retained earnings Retained Earnings [Member] Accumulated other comprehensive (loss) income Treasury stock Treasury Stock [Member] 44 Business Capital 44 Business Capital [Member] 44 Business Capital [Member] First Choice Bank First Choice Bank [Member] First Choice Bank [Member] Commerce Bank Commerce Bank and Trust Company [Member] Commerce Bank and Trust Company [Member] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2016-01 Accounting Standards Update 2016-01 [Member] Accounting Standards Update 2018-02 Accounting Standards Update 2018-02 [Member] Accounting Standards Update 2018-02 [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance (shares) Shares, Outstanding Beginning balance Comprehensive income: Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Other net comprehensive income (loss) Adoption of ASU Cumulative Effect of New Accounting Principle in Period of Adoption Stock issued pursuant to acquisition (shares) Stock Issued During Period, Shares, Acquisitions Stock issued pursuant to acquisition Stock Issued During Period, Value, Acquisitions Common stock issued (shares) Stock Issued During Period, Shares, New Issues Common stock issued, net of $7.1 million offering costs Stock Issued During Period, Value, New Issues Cash dividends declared on common shares Dividends, Common Stock, Cash Cash dividends declared on preferred shares Dividends, Preferred Stock, Cash Treasury stock adjustment Treasury Stock, Retired, Cost Method, Amount Forfeited shares (shares) Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Forfeited shares Stock Issued During Period, Value, Restricted Stock Award, Forfeitures Exercise of stock options (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Restricted stock grants (shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Restricted stock grants Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Stock-based compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Net tax benefit related to stock-based compensation Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net Other, net (shares) Stockholders' Equity, Other Shares Other, net Stockholders' Equity, Other Ending balance (shares) Ending balance Treasury stock retired (in shares) Treasury Stock, Shares, Retired 2019 Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months