Business Combinations [Abstract] Assets Acquired and Liabilities Assumed in Acquisition Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Business Acquisition, Pro Forma Information Business Acquisition, Pro Forma Information [Table Text Block] Banking and Thrift [Abstract] Scheduled Maturities of Time Deposits Deposits [Table Text Block] Tabular disclosure of the aggregate time deposits (deposits that cannot be withdrawn before a set date without penalty or for which notice of withdrawal is required) scheduled to mature in each of the five succeeding fiscal years. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts. Investments, Debt and Equity Securities [Abstract] Schedule of Held-to-Maturity Securities [Table] Debt Securities, Held-to-maturity [Table] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] U.S. government agency securities US Government Agencies Debt Securities [Member] Obligations of states and state agencies State and Local Jurisdiction [Member] Municipal bonds Municipal Bonds [Member] Total obligations of states and political subdivisions US States and Political Subdivisions Debt Securities [Member] Residential mortgage-backed securities Residential Mortgage Backed Securities [Member] Trust preferred securities Other Debt Obligations [Member] Corporate and other debt securities Corporate Debt Securities [Member] Schedule of Held-to-Maturity Securities [Line Items] Schedule of Held-to-maturity Securities [Line Items] Fair Value Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract] Less than Twelve Months Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value More than Twelve Months Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value Total Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value Unrealized Losses Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract] Less than Twelve Months Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss More than Twelve Months Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Total Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss Condensed Financial Information Disclosure [Abstract] Schedule of Condensed Statements of Financial Condition Schedule Of Condensed Statements Of Financial Condition Table [Table Text Block] Schedule Of Condensed Statements Of Financial Condition [Table Text Block]. Schedule of Condensed Statements of Income Schedule Of Condensed Statements Of Income Table [Table Text Block] Schedule Of Condensed Statements Of Income [Table Text Block]. Schedule of Condensed Statements of Cash Flows Schedule Of Condensed Statements Of Cash Flows Table [Table Text Block] Schedule Of Condensed Statements Of Cash Flows [Table Text Block]. Property, Plant and Equipment [Abstract] Components of Premises and Equipment, Net Property, Plant and Equipment [Table Text Block] Retirement Benefits [Abstract] Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Retirement Plan Tax Status [Axis] Retirement Plan Tax Status [Axis] Retirement Plan Tax Status [Domain] Retirement Plan Tax Status [Domain] Nonqualified Plan Nonqualified Plan [Member] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Projected benefit obligation Defined Benefit Plan, Benefit Obligation Accumulated benefit obligation Defined Benefit Plan, Accumulated Benefit Obligation Fair value of plan assets Defined Benefit Plan, Plan Assets, Amount Debt Disclosure [Abstract] Maximum allowable period of interest deferment Maximum Allowable Period Of Interest Deferment Maximum allowable period of interest deferment. Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Valley National Bank Valley National Bank [Member] Valley National Bank [Member] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Total Risk-based Capital Capital [Abstract] Risk-based capital actual, amount Capital Risk-based capital actual, ratio Capital to Risk Weighted Assets Risk-based capital minimum capital requirements, amount Capital Required for Capital Adequacy Risk-based capital minimum capital requirements, ratio Capital Required for Capital Adequacy to Risk Weighted Assets Risk-based capital to be well capitalized under prompt corrective action provision, amount Capital Required to be Well Capitalized Risk-based capital to be well capitalized under prompt corrective action provision, ratio Capital Required to be Well Capitalized to Risk Weighted Assets Common Equity Tier 1 Capital Tier One Common Equity Capital [Abstract] Tier One Common Equity Capital [Abstract] Common equity tier 1 capital, amount Tier One Common Equity Capital Tier One Common Equity Capital Common equity tier 1 capital, ratio Tier One Common Equity Capital To Risk Weighted Assets Tier One Common Equity Capital To Risk Weighted Assets Common equity tier 1 capital Tier One Common Equity Capital Required For Capital Adequacy Tier One Common Equity Capital Required For Capital Adequacy Common equity tier 1 capital minimum capital requirements, ratio Tier One Common Equity Capital Required For Capital Adequacy To Risk Weighted Assets Tier One Common Equity Capital Required For Capital Adequacy To Risk Weighted Assets Common equity tier 1 capital to be well capitalized under prompt corrective action provision, amount Tier One Common Equity Capital Required To Be Well Capitalized Tier One Common Equity Capital Required To Be Well Capitalized Common equity tier 1 capital to be well capitalized under prompt corrective action provision, ratio Tier One Common Equity Capital Required To Be Well Capitalized To Risk Weighted Assets Tier One Common Equity Capital Required To Be Well Capitalized To Risk Weighted Assets Tier 1 Risk-based Capital Tier One Risk Based Capital [Abstract] Tier 1 risk-based capital actual, amount Tier One Risk Based Capital Tier 1 risk-based capital actual, ratio Tier One Risk Based Capital to Risk Weighted Assets Tier 1 risk-based capital minimum capital requirements, amount Tier One Risk Based Capital Required for Capital Adequacy Tier 1 risk-based capital minimum capital requirements, ratio Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets Tier 1 risk-based capital to be well capitalized under prompt corrective action provision, amount Tier One Risk Based Capital Required to be Well Capitalized Tier 1 risk-based capital to be well capitalized under prompt corrective action provision, ratio Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets Tier 1 Leverage Capital Tier One Leverage Capital [Abstract] Tier 1 leverage capital actual, amount Tier One Leverage Capital Tier 1 leverage capital actual, ratio Tier One Leverage Capital to Average Assets Tier 1 leverage capital minimum capital requirements, amount Tier One Leverage Capital Required for Capital Adequacy Tier 1 leverage capital minimum capital requirements, ratio Tier One Leverage Capital Required for Capital Adequacy to Average Assets Tier 1 leverage capital to be well capitalized under prompt corrective action provision, amount Tier One Leverage Capital Required to be Well Capitalized Tier 1 leverage capital to be well capitalized under prompt corrective action provision, ratio Tier One Leverage Capital Required to be Well Capitalized to Average Assets Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statement [Table] Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Parent Company Parent Company [Member] Condensed Balance Sheet Statements, Captions [Line Items] Condensed Balance Sheet Statements, Captions [Line Items] Assets Assets [Abstract] Cash Cash Investments in and receivables due from subsidiaries Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Other assets Other Assets Total Assets Assets Liabilities and Shareholders’ Equity Liabilities and Equity [Abstract] Dividends payable to shareholders Dividends Payable Long-term borrowings Long-term Debt Junior subordinated debentures issued to capital trusts Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust Accrued expenses and other liabilities Other Liabilities Shareholders’ equity Stockholders' Equity Attributable to Parent Total Liabilities and Shareholders’ Equity Liabilities and Equity Quarterly Financial Information Disclosure [Abstract] Interest income Interest and Dividend Income, Operating Interest expense Interest Expense Net interest income Interest Income (Expense), Net Provision for credit losses Provision for Loan, Lease, and Other Losses Net impairment losses on securities recognized in earnings Other-than-temporary Impairment Loss, Debt Securities, Portion Recognized in Earnings Non-interest income: Noninterest Income [Abstract] Gains on sales of loans, net Gain (Loss) on Sales of Loans, Net Gains (losses) on sales of assets, net Gain (Loss) on Disposition of Assets for Financial Service Operations Other non-interest income Noninterest Income, Other Operating Income Non-interest expense: Noninterest Expense [Abstract] Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Amortization of tax credit investments Investment Tax Credit, Amortization Investment Tax Credit, Amortization Other non-interest expense Other Noninterest Expense Income 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 Net Income (Loss) Attributable to Parent Dividends on preferred stock Preferred Stock Dividends, Income Statement Impact Net Income Available to Common Shareholders Net Income (Loss) Available to Common Stockholders, Basic Earnings per common share: Earnings Per Share [Abstract] Basic (in usd per share) Earnings Per Share, Basic Diluted (in usd per share) Earnings Per Share, Diluted Cash dividends declared per common share (in usd per share) Common Stock, Dividends, Per Share, Declared Weighted average number of common shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Summary of Quarterly Financial Data Quarterly Financial Information [Table Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Oritani Financial Corp. Oritani Financial Corp. [Member] Oritani Financial Corp. [Member] Residential mortgage Residential Portfolio Segment [Member] 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] Core deposits Core Deposits [Member] Other Other Intangible Assets [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Goodwill impairment Goodwill, Impairment Loss Weighted average amortization period, years Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Core deposit intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Impairment of core deposits and intangibles Impairment Of Core Deposits And Intangibles Impairment Of Core Deposits And Intangibles Aggregate principal balances of mortgage loans serviced Total Loans Serviced Carrying Amount Total Loans Serviced Carrying Amount Amortization expense - other intangible assets Finite Lived Intangible Asset Net This element represents amortization expense of finite lived intangible assets and net impairment charges on loan servicing rights during the reporting period. Receivables [Abstract] Provision for loan losses Provision for Loan and Lease Losses Provision for unfunded letters of credit Provision For Unfunded Letters Of Credit Provision charged for the period based on estimated losses related to unfunded letters of credit. Total provision for credit losses Schedule of Goodwill [Table] Schedule of Goodwill [Table] Reporting Unit [Axis] Reporting Unit [Axis] Reporting Unit [Domain] Reporting Unit [Domain] Wealth Management Wealth Management [Member] Wealth Management [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Consumer Lending Consumer Lending [Member] Consumer Lending [Member] Commercial Lending Commercial Lending [Member] Commercial lending member Investment Management Investment Management [Member] Investment Management [member] Goodwill [Line Items] Goodwill [Line Items] Goodwill Goodwill Goodwill from business combinations Goodwill, Acquired During Period Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [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 Portfolio Segment [Member] Commercial Real Estate Commercial Real Estate Portfolio Segment [Member] Residential Mortgage Consumer Consumer Portfolio Segment [Member] Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Allowance for loan losses: Financing Receivable, Allowance for Credit Loss [Roll Forward] Beginning balance Financing Receivable, Allowance for Credit Loss Loans charged-off Financing Receivable, Allowance for Credit Loss, Writeoff Charged-off loans recovered Financing Receivable, Allowance for Credit Loss, Recovery Net (charge-offs) recoveries Allowance for Loan and Lease Losses Write-offs, Net Ending balance Commitments and Contingencies Disclosure [Abstract] Amounts Related To Interest Rate Derivatives Included In Income Designated As Hedges Of Cash Flows [Table] Amounts Related To Interest Rate Derivatives Included In Income Designated As Hedges Of Cash Flows [Table] Amounts Related To Interest Rate Derivatives Included In Income Designated As Hedges Of Cash Flows [Table] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Amounts Reclassified from Accumulated Other Comprehensive Loss Reclassification out of Accumulated Other Comprehensive Income [Member] Amounts Related To Interest Rate Derivatives Included In Income Designated As Hedges Of Cash Flows [Line Items] Amounts Related To Interest Rate Derivatives Included In Income Designated As Hedges Of Cash Flows [Line Items] Amounts Related To Interest Rate Derivatives Included In Income Designated As Hedges Of Cash Flows [Line Items] Amount of loss reclassified from accumulated other comprehensive loss to interest expense Amount of (loss) gain recognized in other comprehensive income Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax, Parent Income Tax Disclosure [Abstract] Current expense: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Current Federal Tax Expense (Benefit) State Current State and Local Tax Expense (Benefit) Total current expense Current Income Tax Expense (Benefit) Deferred expense (benefit): Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) State Deferred State and Local Income Tax Expense (Benefit) Total deferred expense Deferred Income Tax Expense (Benefit) Income tax expense Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] USAmeriBancorp, Inc. USAmeriBancorp, Inc. [Member] USAmeriBancorp, Inc. [Member] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Alabama ALABAMA Business Acquisition [Line Items] Business Acquisition [Line Items] Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Including Goodwill Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Including Goodwill Loans Loans and Leases Receivable, Net Amount Deposits Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits, Total Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits, Total Number of branches acquired Number of Businesses Acquired Conversion ratio for shares issued Business Acquisition, Equity Interest Issued Or Issuable, Share Conversion Ratio Business Acquisition, Equity Interest Issued Or Issuable, Share Conversion Ratio Consideration transferred Business Combination, Consideration Transferred Shares issued in connection with acquisition Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Merger expenses Payments for Merger Related Costs Estimated useful life Quarterly Financial Data (Unaudited) Quarterly Financial Information [Text Block] Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Amortization Recorded in Non-Interest Expenses Non-Interest Expenses [Member] Non-Interest Expenses [Member] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Number of federal renewable energy tax credit funds Number Of Federal Renewable Energy Tax Credit Funds Number Of Federal Renewable Energy Tax Credit Funds Federal renewable energy tax credit investments, net Federal Renewable Energy Tax Credit Investments, Net Federal Renewable Energy Tax Credit Investments, Net Federal renewable energy tax credit investments, net, amount per fund Federal Renewable Energy Tax Credit Investments, Net, Amount Per Fund Federal Renewable Energy Tax Credit Investments, Net, Amount Per Fund Other tax credit investments, net Other Tax Credit Investments, Net Other Tax Credit Investments, Net Other than temporary impairment losses on other tax credits investments Other Than Temporary Impairment Losses On Other Tax Credits Investments Other Than Temporary Impairment Losses On Other Tax Credits Investments Affordable housing tax credit investment impairment losses Amortization Method Qualified Affordable Housing Project Investments, Amortization, Impairment Losses Amortization Method Qualified Affordable Housing Project Investments, Amortization, Impairment Losses Other tax credit investment impairment losses Amortization Of Other Tax Credit Impairment Losses Amortization Of Other Tax Credit Impairment Losses Debt Securities, Available-for-sale [Table] Debt Securities, Available-for-sale [Table] U.S. Treasury securities US Treasury Securities [Member] Obligations of states and political subdivisions Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-sale [Line Items] Fair Value Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract] Less than Twelve Months Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months More than Twelve Months Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer Total Debt Securities, Available-for-sale, Unrealized Loss Position Unrealized Losses Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract] Less than Twelve Months Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss More than Twelve Months Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Total Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss Discount rate - projected benefit obligation Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate, Projected Benefit Obligation Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate, Projected Benefit Obligation Discount rate - interest cost Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate, Interest Cost Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate, Interest Cost Expected long-term return on plan assets Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets Leases [Abstract] Gross Rents, 2019 Operating Leases, Future Minimum Payments Due, Next Twelve Months Gross Rents, 2020 Operating Leases, Future Minimum Payments, Due in Two Years Gross Rents, 2021 Operating Leases, Future Minimum Payments, Due in Three Years Gross Rents, 2022 Operating Leases, Future Minimum Payments, Due in Four Years Gross Rents, 2023 Operating Leases, Future Minimum Payments, Due in Five Years Gross Rents, Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Gross Rents, Total lease payments Operating Leases, Future Minimum Payments Due Sublease Income, 2019 Future Minimum Sublease Rentals, Sale Leaseback Transactions, Next Twelve Months Sublease Income, 2020 Future Minimum Sublease Rentals, Sale Leaseback Transactions, within Two Years Sublease Income, 2021 Future Minimum Sublease Rentals, Sale Leaseback Transactions, within Three Years Sublease Income, 2022 Future Minimum Sublease Rentals, Sale Leaseback Transactions, within Four Years Sublease Income, 2023 Future Minimum Sublease Rentals, Sale Leaseback Transactions, within Five Years Sublease Income, Thereafter Future Minimum Sublease Rentals, Sale Leaseback Transactions, Thereafter Sublease Income, Total lease payments Future Minimum Sublease Rentals, Sale Leaseback Transactions Net Rents, 2019 Net Operating Leases Future Minimum Payments Due Next Twelve Months Net Operating Leases Future Minimum Payments Due Next Twelve Months Net Rents, 2020 Net Operating Leases Future Minimum Payments Due In Two Years Net Operating Leases Future Minimum Payments Due In Two Years Net Rents, 2021 Net Operating Leases Future Minimum Payments Due In Three Years Net Operating Leases Future Minimum Payments Due In Three Years Net Rents, 2022 Net Operating Leases Future Minimum Payments Due In Four Years Net Operating Leases Future Minimum Payments Due In Four Years Net Rents, 2023 Net Operating Leases Future Minimum Payments Due In Five Years Net Operating Leases Future Minimum Payments Due In Five Years Net Rents, Thereafter Net Operating Leases Future Minimum Payments Due Thereafter Net Operating Leases Future Minimum Payments Due Thereafter Net rents, total lease payments Net Operating Leases Future Minimum Payments Due Net Operating Leases Future Minimum Payments Due Debt Security Category [Axis] Debt Security Category [Axis] Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain] Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain] Available-for-sale securities Available-for-sale Securities [Member] Held-to-maturity securities Held-to-maturity Securities [Member] Assets acquired: Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract] Cash and cash equivalents Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Equity securities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Equity Securities FV-NI Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Equity Securities FV-NI Investment securities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Marketable Securities Premises and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Bank owned life insurance Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Bank Owned Life Insurance Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Bank Owned Life Insurance Accrued interest receivable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Goodwill Other intangible assets Other assets: Other Assets [Abstract] Deferred tax assets Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets FHLB and FRB stock Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, FHLB and FRB Stock Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, FHLB and FRB Stock Other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Total other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets Total assets acquired Liabilities assumed: Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract] Deposits: Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities [Abstract] Non-interest bearing Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits, Non-Interest Bearing Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits, Non-Interest Bearing Savings, NOW and money market Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits, Savings, NOW, And Money Market Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits, Savings, NOW, And Money Market Time Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits, Time Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits, Time Total deposits Short-term borrowings Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Short-term Borrowings Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Short-term Borrowings Long-term borrowings Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt Accrued expense and other liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other Total liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Common stock issued in acquisition Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Total investment securities available for sale 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 Fair Value Debt Securities, Available-for-sale Gain Loss On Fair Value Hedges Recognized In Earnings [Table] Gain Loss On Fair Value Hedges Recognized In Earnings [Table] Gain Loss On Fair Value Hedges Recognized In Earnings [Table] Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Fair value hedge Fair Value Hedging [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Interest rate swaps Interest Rate Swap [Member] Interest rate caps and swaps Interest Rate Contract [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Derivatives designated as hedging instruments Designated as Hedging Instrument [Member] Interest income Interest Income [Member] Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items] Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items] Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items] Gains (losses) included in the consolidated statements of income Derivative, Gain (Loss) on Derivative, Net Direct Financing and Sales-Type Leases Sales-type and Direct Financing Leases, Lease Receivable, Fiscal Year Maturity [Abstract] 2020 Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Next Twelve Months 2021 Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Two Years 2022 Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Three Years 2023 Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Four Years 2024 Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Five Years Thereafter Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Thereafter Total lease payments Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received Less: present value discount Sales-type and Direct Financing Leases, Lease Receivable, Undiscounted Excess Amount Total Sales-type and Direct Financing Leases, Lease Receivable Operating Leases Lessee, Operating Lease, Liability, Payment, Due [Abstract] 2020 Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months 2021 Lessee, Operating Lease, Liability, Payments, Due Year Two 2022 Lessee, Operating Lease, Liability, Payments, Due Year Three 2023 Lessee, Operating Lease, Liability, Payments, Due Year Four 2024 Lessee, Operating Lease, Liability, Payments, Due Year Five Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Total lease payments Lessee, Operating Lease, Liability, Payments, Due Less: present value discount Lessee, Operating Lease, Liability, Undiscounted Excess Amount Total Operating Lease, Liability Finance Lease, Liability, Payment, Due [Abstract] 2020 Finance Lease, Liability, Payments, Due Next Twelve Months 2021 Finance Lease, Liability, Payments, Due Year Two 2022 Finance Lease, Liability, Payments, Due Year Three 2023 Finance Lease, Liability, Payments, Due Year Four 2024 Finance Lease, Liability, Payments, Due Year Five Thereafter Finance Lease, Liability, Payments, Due after Year Five Total lease payments Finance Lease, Liability, Payment, Due Less: present value discount Finance Lease, Liability, Undiscounted Excess Amount Total Finance Lease, Liability Loan servicing rights Loan Servicing Rights [Member] Loan Servicing Rights [Member] Gross Intangible Assets Finite-Lived Intangible Assets, Gross Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Valuation Allowance Servicing Asset at Amortized Cost, Increase (Decrease) for Valuation Allowance Adjustment Net Intangible Assets Intangible Assets, Net (Excluding Goodwill) Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Restricted Stock Restricted Stock [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Outstanding at beginning of year (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Outstanding at end of year (in shares) 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, beginning of period Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Acquisition Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Additions Accretion Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion Net (decrease) increase in expected cash flows Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications (to) from Nonaccretable Difference Balance, end of period Schedule of Short-Term Borrowings Schedule of Short-term Debt [Table Text Block] Schedule of Long-Term Borrowings Schedule of Long-term Debt Instruments [Table Text Block] Schedule of FHLB Repayment Federal Home Loan Bank Advances, Disclosure [Text Block] Schedule of Repayment of Long-Term Borrowings for Securities Sold Under Agreements to Repurchase Schedule of Maturities of Long-term Debt [Table Text Block] Loans Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Sale Leaseback Transaction [Table] Sale Leaseback Transaction [Table] Sale Leaseback Transaction, Description [Axis] Sale Leaseback Transaction, Description [Axis] Sale Leaseback Transaction, Name [Domain] Sale Leaseback Transaction, Name [Domain] Sale leaseback transaction, March 2019 Sale Leaseback Transaction, March 2019 [Member] Sale Leaseback Transaction, March 2019 [Member] Sale Leaseback Transaction [Line Items] Sale Leaseback Transaction [Line Items] Sale leaseback transaction, number of properties Sale Leaseback Transaction, Number Of Properties Sale Leaseback Transaction, Number Of Properties Sale leaseback transaction, number of branches Sale Leaseback Transaction, Number Of Branches Sale Leaseback Transaction, Number Of Branches Sale leaseback transaction, number of corporate offices Sale Leaseback Transaction, Number Of Corporate Offices Sale Leaseback Transaction, Number Of Corporate Offices Sale-leaseback transaction sale price Sale Leaseback Transaction, Net Proceeds, Investing Activities1 Sale Leaseback Transaction, Net Proceeds, Investing Activities1 Pre-tax net gain sale-leaseback Sale and Leaseback Transaction, Gain (Loss), Net Operating leases, ROU assets Operating Lease, Right-of-Use Asset Operating leases, liabilities Operating lease, term of contract Lessee, Operating Lease, Term of Contract Operating lease cost Operating Lease, Cost Sales-type and direct financing leases, lease receivable Sales-type and direct financing lease, unguaranteed residual asset Sales-type And Direct Financing Lease, Unguaranteed Residual Asset Sales-type And Direct Financing Lease, Unguaranteed Residual Asset Sales-type and direct financing leases, lease receivables Sales-type and Direct Financing Leases, Lease Receivables Sales-type and Direct Financing Leases, Lease Receivables Lease income Lease Income Lease costs Operating Leases, Rent Expense, Net Sublease income Operating Leases, Rent Expense, Sublease Rentals Parent Company Information Condensed Financial Information of Parent Company Only Disclosure [Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Receivable Type [Axis] Receivable Type [Axis] Receivable [Domain] Receivable [Domain] Non-PCI Loans Non Purchased Credit Impaired Loans [Member] Non Purchased Credit Impaired Loans [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] Commercial and industrial Commercial real estate Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Commercial real estate Real Estate Loan [Member] Construction Construction Loans [Member] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Total Non-PCI Loans Loans Classified By Internally Assigned Risk Rating Loans classified by internally assigned risk rating. 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] Long-term borrowings Long-term Debt [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] FHLB advances, net Long-term Federal Home Loan Bank Advances Securities sold under agreements to repurchase Securities Sold under Agreements to Repurchase Subordinated debt, net Subordinated Debt Total long-term borrowings Unamortized prepayment penalties and other purchase accounting adjustments Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Unamortized Prepayment And Penalties Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Unamortized Prepayment And Penalties Deferred issuance costs Debt Issuance Costs, Net Reconciliation of Gross Unrecognized Tax Benefits Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Beginning balance Unrecognized Tax Benefits Additions based on tax positions related to prior years Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Settlements with taxing authorities Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Reductions due to expiration of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Ending balance Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other Assets Other Assets [Member] Other Liabilities Accrued Expenses And Other Liabilities [Member] Accrued Expenses And Other Liabilities [Member] Other Assets: Affordable housing tax credit investments, net Amortization Method Qualified Affordable Housing Project Investments Total tax credit investments, net Tax Credit Investments, Net Tax Credit Investments, Net Other Liabilities: Other Liabilities [Abstract] Unfunded affordable housing tax credit commitments Qualified Affordable Housing Project Investments, Commitment, Unfunded Tax Credit Qualified Affordable Housing Project Investments, Commitment, Unfunded Tax Credit Unfunded other tax credit commitments Other Unfunded Tax Credit Commitments Other Unfunded Tax Credit Commitments Total unfunded tax credit commitments Unfunded Tax Credit Commitments Unfunded Tax Credit Commitments Amortized Cost Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract] Due in one year 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 Residential mortgage-backed securities Debt Securities, Held-to-maturity, Maturity, without Single Maturity Date, Amortized Cost Amortized Cost Debt Securities, Held-to-maturity Fair Value Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] Due in one year 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 Residential mortgage-backed securities Debt Securities, Held-to-maturity, Maturity, without Single Maturity Date, Fair Value Total investment securities held to maturity Debt Securities, Held-to-maturity, Fair Value Amortized Cost Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract] Due in one year 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 Residential mortgage-backed securities Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Amortized Cost Fair Value Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract] Due in one year 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 Residential mortgage-backed securities Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value Total investment securities available for sale Statement of Cash Flows [Abstract] Statement [Table] Statement [Table] Statement [Line Items] Statement [Line Items] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income 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 and amortization Depreciation, Amortization and Accretion, Net Stock-based compensation Share-based Payment Arrangement, Noncash Expense Net amortization of premiums and accretion of discounts on securities and borrowings Accretion Amortization Of Discounts And Premiums Investments And Borrowings The sum of the periodic adjustments of the differences between securities'/borrowings' face values and purchase prices that are charged against earnings. This is called accretion if the security/borrowing was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by (used in) operations using the indirect method. Amortization of other intangible assets Amortization of Intangible Assets Losses on securities transactions, net Debt and Equity Securities, Gain (Loss) Proceeds from sales of loans held for sale Proceeds from Sale of Loans Held-for-sale Gains on sales of loans, net Net impairment losses on securities recognized in earnings Other than Temporary Impairment Losses, Investments Originations of loans held for sale Payments for Origination and Purchases of Loans Held-for-sale (Gains) losses on sales of assets, net Gain (Loss) on Disposition of Assets Net deferred income tax (benefit) expense Net change in: Increase (Decrease) in Operating Capital [Abstract] Cash surrender value of bank owned life insurance Bank Owned Life Insurance Income Accrued interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Other assets Increase (Decrease) in Other Operating Assets Accrued expenses and other liabilities Increase (Decrease) in Other Accounts Payable and Accrued Liabilities 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] Net loan originations and purchases Payments to Acquire Loans and Leases Held-for-investment Equity securities: Proceeds from Issuance or Sale of Equity [Abstract] Purchases Payments To Acquire Equity Securities, FV-NI Payments To Acquire Equity Securities, FV-NI Sales Proceeds From Sale Of Equity Securities, FV-NI Proceeds From Sale Of Equity Securities, FV-NI Held to maturity debt securities: Proceeds from Sale, Maturity and Collection of Investments [Abstract] Purchases Payments to Acquire Held-to-maturity Securities Maturities, calls and principal repayments Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities Available for sale debt securities: Proceeds from Sale and Maturity of Held-to-maturity Securities [Abstract] Purchases Payments to Acquire Debt Securities, Available-for-sale Sales Proceeds from Sale of Debt Securities, Available-for-sale Maturities, calls and principal repayments Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale Death benefit proceeds from bank owned life insurance Proceeds from Life Insurance Policy Proceeds from sales of real estate property and equipment Proceeds from Sale of Property, Plant, and Equipment Purchases of real estate property and equipment Payments to Acquire Property, Plant, and Equipment Cash and cash equivalents acquired in acquisitions Cash Acquired from Acquisition Net cash used in 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 change in deposits Increase (Decrease) in Deposits Net change in short-term borrowings Proceeds from (Repayments of) Short-term Debt Proceeds from issuance of long-term borrowings, net Proceeds from Issuance of Long-term Debt Repayments of long-term borrowings Repayments of Long-term Debt Proceeds from issuance of preferred stock, net Proceeds from Issuance of Preferred Stock and Preference Stock Cash dividends paid to preferred shareholders Payments of Ordinary Dividends, Preferred Stock and Preference Stock Cash dividends paid to common shareholders Payments of Ordinary Dividends, Common Stock Purchase of common shares to treasury Payments for Repurchase of Common Stock Common stock issued, net Proceeds from Issuance of Common Stock Other, net Proceeds from (Payments for) Other Financing Activities Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Net change 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 at beginning of year Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents at end of year Supplemental disclosures of cash flow information: Supplemental Cash Flow Information [Abstract] Interest on deposits and borrowings Interest Paid, Excluding Capitalized Interest, Operating Activities Federal and state income taxes Income Taxes Paid Supplemental schedule of non-cash investing activities: Supplemental Non Cash Investing Activities [Abstract] Supplemental Non Cash Investing Activities [Abstract] Transfer of loans to other real estate owned Transfer Of Loans Held For Investment To Other Real Estate The amount represents loans transferred from the held for investment category to other real estate owned. Loans transferred to loans held for sale Transfer of Portfolio Loans and Leases to Held-for-sale Lease right of use assets obtained in exchange for operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Non-cash assets acquired: Noncash or Part Noncash Acquisition, Value of Assets Acquired [Abstract] Equity securities Noncash Or Part Noncash Acquisition, Equity Securities FV-NI Noncash Or Part Noncash Acquisition, Equity Securities FV-NI Investment securities Noncash or Part Noncash Acquisition, Investments Acquired Loans Loans Non Cash Cf Loans Non Cash Cf Premises and equipment Noncash or Part Noncash Acquisition, Fixed Assets Acquired Bank owned life insurance Noncash or Part Noncash Acquisition, Bank Owned Life Insurance Noncash or Part Noncash Acquisition, Bank Owned Life Insurance Accrued interest receivable Noncash Or Part Noncash Acquisition Accrued Interest Receivable Assumed The amount of interest receivable that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition that are not presented as a separate disclosure or otherwise listed in the existing taxonomy. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Goodwill Noncash Or Part Noncash Acquisition Goodwill Acquired Noncash Or Part Noncash Acquisition Goodwill Acquired Other intangible assets Noncash or Part Noncash Acquisition, Intangible Assets Acquired Other assets Noncash or Part Noncash Acquisition, Other Assets Acquired Total non-cash assets acquired Noncash or Part Noncash Acquisition, Value of Assets Acquired Liabilities assumed: Noncash or Part Noncash Acquisition, Value of Liabilities Assumed [Abstract] Deposits Noncash Or Part Noncash Acquisition Deposits Assumed The amount of deposits that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition that are not presented as a separate disclosure or otherwise listed in the existing taxonomy. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Short-term borrowings Noncash Or Part Noncash Acquisition Short Term Borrowing Assumed The amount of short-term borrowings that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Long-term borrowings Noncash Or Part Noncash Acquisition Long Term Borrowing Assumed Noncash Or Part Noncash Acquisition Long Term Borrowing Assumed Junior subordinated debentures issued to capital trusts Noncash Or Part Noncash Acquisitions Junior Subordinated Debentures Issued To Capital Trusts Noncash or part noncash acquisition junior subordinated debentures issued to capital trusts. Accrued expenses and other liabilities Noncash or Part Noncash Acquisition, Other Liabilities Assumed Total liabilities assumed Noncash or Part Noncash Acquisition, Value of Liabilities Assumed Net non-cash assets acquired Noncash or Part Noncash Acquisition, Net Nonmonetary Assets Acquired (Liabilities Assumed) Net cash and cash equivalents acquired in acquisition Common stock issued in acquisition Stock Issued Carrying Amount of Goodwill Schedule of Goodwill [Table Text Block] Other Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Schedule of Change in Loan Servicing Rights Servicing Asset at Amortized Cost [Table Text Block] Estimated Future Amortization Expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Operating cash flows from operating leases Operating Lease, Payments Operating cash flows from finance leases Finance Lease, Interest Payment on Liability Financing cash flows from finance leases Finance Lease, Principal Payments Affordable Housing Tax Credit Investments, Other Tax Credit Investments, and Related Unfunded Commitments Affordable Housing Tax Credit Investments, Other Tax Credit Investments, and Related Unfunded Commitments [Table Text Block] Affordable Housing Tax Credit Investments, Other Tax Credit Investments, and Related Unfunded Commitments [Table Text Block] Affordable Housing Tax Credit Investments and Other Tax Credit Investments Affordable Housing Tax Credit Investments and Other Tax Credit Investments [Table Text Block] Affordable Housing Tax Credit Investments and Other Tax Credit Investments [Table Text Block] Fair Value Disclosures [Abstract] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Carrying Amount Reported Value Measurement [Member] Fair Value Estimate of Fair Value Measurement [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] Fair Value Assets Measured On Recurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Cash and due from banks Cash and Cash Equivalents, Fair Value Disclosure Interest bearing deposits with banks Interest-bearing Deposits in Banks and Other Financial Institutions Investment securities held to maturity Net loans Loans Receivable, Fair Value Disclosure Accrued interest receivable Accrued Investment Income Receivable Federal Reserve Bank and Federal Home Loan Bank stock Investment in Federal Home Loan Bank Stock, Fair Value Disclosure Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Deposits without stated maturities Deposits Without Stated Maturities Fair Value Disclosure This item represents the aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, and negotiable orders of withdrawal (NOW). Deposits with stated maturities Time Deposits Short-term borrowings Short Term Borrowings Fair Value Disclosure Short term borrowings fair value disclosure Long-term borrowings Long Term Borrowings Fair Value Disclosure Long term borrowings fair value disclosure Junior subordinated debentures issued to capital trusts Subordinated Debt Obligations, Fair Value Disclosure Accrued interest payable Accrued Interest Payable Fair Value Disclosure Accrued interest payable fair value disclosure Schedule of Loan Portfolio Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Estimates of the Contractually Required Payments, the Cash Flows Expected to be Collected, and the Estimated Fair Value of Covered Loans in the Acquisition Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Table Text Block] Changes in Accretable Yield for PCI Loans Schedule Of Accretable Yield For Covered Loans [Table Text Block] Schedule of Accretable Yield for Covered Loans [Text Block] Changes in Amounts of Loans and Advances to the Related Parties Schedule of Related Party Transactions [Table Text Block] Past Due, Non-Accrual and Current Loans by Loan Portfolio Class Financing Receivable, Nonaccrual [Table Text Block] Impaired Loans by Loan Portfolio Class Impaired Financing Receivables [Table Text Block] Average Recorded Investment and Interest Income Recognized on Impaired Loans Schedule Of Average Recorded Investment And Interest Income Recognized On Impaired Loans [Table Text Block] Schedule of average recorded investment and interest income recognized on impaired loans [Table Text Block] Non-PCI Loans by Loan Class Modified as TDRs Financing Receivable, Troubled Debt Restructuring [Table Text Block] Risk Category of Loans by Class of Loans Financing Receivable Credit Quality Indicators [Table Text Block] Recorded Investment in Loan Classes Based on Payment Activity Schedule Of Recorded Investment In Loan Classes Based On Payment Activity [Table Text Block] Schedule Of Recorded Investment In Loan Classes Based On Payment Activity [Table Text Block] Regulatory and Capital Requirements Regulatory And Capital Requirements [Text Block] Regulatory And Capital Requirements [Text Block] Fair Value Measurement of Assets and Liabilities Fair Value Disclosures [Text Block] Tax Credit Investments Income Tax Disclosure [Text Block] Statement of Financial Position [Abstract] Cash and due from banks Cash and Due from Banks Investment securities: Marketable Securities [Abstract] Equity securities Equity Securities, FV-NI Available for sale securities Held to maturity debt securities (fair value of $2,358,720 at December 31, 2019 and $2,034,943 at December 31, 2018) Total investment securities Marketable Securities Loans held for sale, at fair value Loans Held For Sale At Fair Value The aggregate amount of loans receivable that will be sold to other entities. Includes mortgage and all other loans (collectively, loans) not classified as held for investment. Loans originated for sale are carried at fair value under the fair value option of ASC Topic 825. Mortgage loans exclude mortgage-backed securities which are considered a debt security (other loan). Loans Loans and Leases Receivable, Net of Deferred Income Less: Allowance for loan losses Net loans Premises and equipment, net Property, Plant and Equipment, Net Lease right of use assets Operating And Finance Lease, Right-of-Use-Asset Operating And Finance Lease, Right-of-Use-Asset Bank owned life insurance Bank Owned Life Insurance Other intangible assets, net Liabilities Liabilities [Abstract] Deposits: Deposits [Abstract] Non-interest bearing Noninterest-bearing Deposit Liabilities Interest bearing: Deposits, by Type [Abstract] Savings, NOW and money market Savings Now And Money Market The aggregate amount of all domestic and foreign interest bearing savings, NOW and money market deposit liabilities with no stated maturity dates. Time Total deposits Deposits Short-term borrowings Short-term Debt Long-term borrowings Long Term Debt, Excluding Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust Long Term Debt, Excluding Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust Junior subordinated debentures issued to capital trusts Lease liabilities Operating And Finance Lease, Liability Operating And Finance Lease, Liability Accrued expenses and other liabilities Accounts Payable and Accrued Liabilities Total Liabilities Liabilities Shareholders’ Equity Stockholders' Equity Attributable to Parent [Abstract] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Series A Preferred Stock Series A Preferred Stock [Member] Series B Preferred Stock Series B Preferred Stock [Member] Preferred stock, no par value; 50,000,000 shares authorized Preferred Stock, Value, Issued Common stock (no par value, authorized 450,000,000 shares; issued 403,322,773 shares at December 31, 2019 and 331,634,951 shares at December 31, 2018) Common Stock, Value, Issued Surplus Additional Paid in Capital, Common Stock Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Treasury stock, at cost (44,383 common shares at December 31, 2019 and 203,734 common shares at December 31, 2018) Treasury Stock, Value Total Shareholders’ Equity Weighted-average remaining lease term, operating lease Operating Lease, Weighted Average Remaining Lease Term Weighted-average remaining lease term, finance lease Finance Lease, Weighted Average Remaining Lease Term Weighted-average discount rate, operating lease Operating Lease, Weighted Average Discount Rate, Percent Weighted-average discount rate, finance lease Finance Lease, Weighted Average Discount Rate, Percent Schedule of Outstanding Junior Subordinated Debentures and Related Trust Preferred Securities Issued by Each Trust Schedule Of Outstanding Junior Subordinated Debentures And Related Trust Preferred Securities Issued By Each Trust [Table Text Block] Schedule Of Outstanding Junior Subordinated Debentures And The Related Trust Preferred Securities Issued By Each Trust [Table Text Block] Deferred tax assets: Deferred Tax Assets, Gross [Abstract] Allowance for loan losses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Provision for Loan Losses Depreciation Deferred Tax Assets, Property, Plant and Equipment Employee benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits Investment securities, including other-than-temporary impairment losses Deferred Tax Assets Investment Securities Including Other Than Temporary Impairment Losses Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from investments (excludes investments in subsidiaries and equity method investments) and other-than-temporary impairment losses. Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards, State and Local Purchase accounting Deferred Tax Assets Purchase Accounting Amount of deferred tax asset attributable to taxable temporary differences arising from various items related to business combinations. Other Deferred Tax Assets, Other Total deferred tax assets Deferred Tax Assets, Gross Deferred tax liabilities: Deferred Tax Liabilities, Gross [Abstract] Pension plans Deferred Tax Liabilities Pension Plan Deferred Tax Liabilities Pension Plan Depreciation Deferred Tax Liabilities, Property, Plant and Equipment Investment securities, including other-than-temporary impairment losses Deferred Tax Liabilities, Investments Other investments Deferred Tax Liabilities Other Investments Deferred tax liability attributable to taxable temporary differences arising from carrying basis differences of non-marketable investments (excludes investments in subsidiaries and equity method investments). Core deposit intangibles Deferred Tax Liabilities, Intangible Assets Other Deferred Tax Liabilities, Other Total deferred tax liabilities Deferred Tax Liabilities, Gross Valuation Allowance Deferred Tax Assets, Valuation Allowance Net deferred tax asset (included in other assets) Deferred Tax Assets, Net of Valuation Allowance Investment Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Schedule of Guarantor Obligations [Table] Schedule of Guarantor Obligations [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Measurement Frequency [Domain] Measurement Frequency [Domain] Non-recurring fair value measurements Fair Value, Nonrecurring [Member] Statistical Measurement [Axis] Statistical Measurement [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Minimum Minimum [Member] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Collateral dependent loan charge-offs Impaired Collateral Dependent Loans Charge Offs This amount represents the direct charge-off the allowance for loan losses related to the collateral dependent impaired loans. Collateral dependent impaired loans, recorded investment Collateral Dependent Impaired Loans Carrying Value Collateral Dependent Impaired Loans Carrying Value Specific valuation allowance allocations Impaired Loans Specific Valuation Allowance Allocation Specific valuation for loan losses related to impaired loans which are evaluated for impairment on an individual basis. Reported net carrying amount of impaired loans Impaired Loans Reported Net Carrying Value Impaired loans, reported net carrying value. Valuation of loan servicing rights, prepayment rate Fair Value Unobservable Inputs Quantitative Information For Assets Measured On Nonrecurring Basis Loan Servicing Rights Prepayment Rate Fair value, unobservable inputs, quantitative information for assets measured on non-recurring basis, loan servicing rights prepayment rate. Valuation of loan servicing rights, discount rate Fair Value Unobservable Inputs Quantitative Information For Assets Measured On Nonrecurring Basis Loan Servicing Rights Discount Rate Fair value, unobservable inputs, quantitative information for assets measured on non-recurring basis, loan servicing rights discount rate. Loan servicing rights, fair value Mortgage Servicing Rights, Fair Value Mortgage Servicing Rights, Fair Value Net impairment (recovery of impairment) on loan servicing rights Mortgage Servicing Rights (MSR) Impairment (Recovery) Foreclosed assets measured at fair value upon initial recognition Foreclosed Assets Measured At Fair Value Certain foreclosed assets (consisting of other real estate owned and other repossessed assets), upon initial recognition and transfer from loans, are re-measured and reported at fair value through a charge-off to the allowance for loan losses based upon the fair value of the foreclosed assets. The fair value of a foreclosed asset, upon initial recognition, is typically estimated using Level 3 inputs, consisting of an appraisal that is significantly adjusted based on customized discounting criteria. Allowance for loan losses, charge-offs Allowance For Covered Loan Losses Net Charge Offs Allowance For Covered Loan Losses Net Charge Offs Loss due to re-measurement of repossessed assets Loss Due To Remeasurement Of Repossessed Asset At Fair Value This element represents a loss due to the re-measurement of repossessed asset at fair value subsequent to initial recognition. Equity [Abstract] Schedule of Comprehensive Income Comprehensive Income (Loss) [Table Text Block] Schedule of Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Loans and Leases Receivable, Related Parties [Roll Forward] Loans and Leases Receivable, Related Parties [Roll Forward] Outstanding at beginning of year Loans and Leases Receivable, Related Parties New loans and advances Loans and Leases Receivable, Related Parties, Additions Repayments Loans and Leases Receivable, Related Parties, Proceeds Outstanding at end of year Premises and Equipment, Net Property, Plant and Equipment Disclosure [Text Block] Net loss Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax Amortization of prior service cost Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax Amortization of actuarial loss Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax Total recognized in other comprehensive income Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), after Reclassification Adjustment, before Tax Total recognized in net periodic pension income and other comprehensive income/loss (before tax) Defined Benefit Plan, Amount Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive (Income) Loss, before Tax Allowance for loan losses Allowance for unfunded letters of credit Allowance For Unfunded Letters Of Credit Allowance for Unfunded Letters Of Credit Total allowance for credit losses Allowance For Credit Losses Allowance for loan and unfunded letters of credit losses. Gross gains, sale transactions Gain on Sale of Investments Gross losses, sale transactions Loss on Sale of Investments Gains on sale transactions, net Gain (Loss) on Sale of Investments Gross gains, maturities and other securities transactions Gross Gains Realized On Maturities And Other Securities Transactions Gross gains realized from maturities and other securities transactions not separately or otherwise categorized as trading, available-for-sale, or held-to-maturity. Gross losses, maturities and other securities transactions Gross Losses Realized On Maturities And Other Securities Transactions Gross losses realized from maturities and other securities transactions not separately or otherwise categorized as trading, available-for-sale, or held-to-maturity. Gains (losses) on maturities and other securities transactions, net Gains Losses On Maturities And Other Securities Transactions Gains (losses) on maturities and other securities transactions (Losses) gains on securities transactions, net Financing Receivable, Troubled Debt Restructuring [Table] Financing Receivable, Troubled Debt Restructuring [Table] Financing Receivable, Troubled Debt Restructuring [Line Items] Financing Receivable, Troubled Debt Restructuring [Line Items] Number of Contracts Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts Recorded Investment Financing Receivable, Troubled Debt Restructuring, Subsequent Default Business Combination, Separately Recognized Transactions [Table] Business Combination, Separately Recognized Transactions [Table] Business Combination, Separately Recognized Transactions [Line Items] Business Combination, Separately Recognized Transactions [Line Items] Contractually required principal and interest Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, Contractually Required Payments Receivable at Acquisition Contractual cash flows not expected to be collected (non-accretable difference) Certain Loans Acquired in Transfer, Nonaccretable Difference Expected cash flows to be collected Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, Cash Flows Expected to be Collected at Acquisition Interest component of expected cash flows (accretable yield) Fair value of acquired loans Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value Statement of Stockholders' Equity [Abstract] Common Stock Common Stock [Member] Cash dividends declared (usd per share) Preferred Stock, Dividends Per Share, Declared Cash dividends declared (usd per share) Offsetting [Abstract] Balance Sheet Offsetting Balance Sheet Offsetting Disclosure [Text Block] Balance Sheet Offsetting Disclosure [Text Block] Change in Projected Benefit Obligation Schedule of Changes in Projected Benefit Obligations [Table Text Block] Components of Net Periodic Pension Expense Schedule of Net Benefit Costs [Table Text Block] Projected Benefit Obligation, Accumulated Benefit Obligation and Fair Value of Plan Assets for Non-Qualified Plans Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Table Text Block] Components of Net Periodic Pension Income for Qualified and Non-Qualified Plans Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block] Qualified and Non-Qualified Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income or Loss Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] Schedule of Expected Future Benefit Payments Schedule of Expected Benefit Payments [Table Text Block] Weighted Average Discount Rate Defined Benefit Plan, Assumptions [Table Text Block] Fair Value Measurement Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block] Changes in Restricted Stock Awards Outstanding Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Changes in RSUs Outstanding Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Stock Options Activity Share-based Payment Arrangement, Option, Activity [Table Text Block] Stock Options Outstanding and Exercisable Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block] Changes in Director's Restricted Stock Awards Changes In Directors Restricted Stock Awards Table [Table Text Block] Changes In Directors Restricted Stock Awards [Table Text Block] Gross Unrealized Gains Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain Gross Unrealized Losses Fair Value ROU Assets and Lease Liabilities By Lease Type Assets And Liabilities, Lessee [Table Text Block] Assets And Liabilities, Lessee Components of Lease, Supplemental Cash Flow and Supplemental Information Lease, Cost [Table Text Block] Sales-type Leases Sales-type Lease, Lease Income [Table Text Block] Direct Financing Leases Direct Financing Lease, Lease Income [Table Text Block] Finance Leases Maturity Finance Lease, Liability, Maturity [Table Text Block] Operating Lease Maturity Lessee, Operating Lease, Liability, Maturity [Table Text Block] Minimum Aggregate Lease Payments In Accordance With Topic 840 Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] RSUs Restricted Stock Units (RSUs) [Member] Acquired in business combination (in shares) Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other Than Options, Assumed In Business Combination Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other Than Options, Assumed In Business Combination Accounting Policies [Abstract] Earnings Per Common Share: Net income available to common shareholders Basic weighted-average number of common shares outstanding (in shares) Plus: Common stock equivalents (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Diluted weighted-average number of common shares outstanding (in shares) Earnings per common share: Earnings Per Common Share [Abstract] Earnings Per Common Share [Abstract] Segment Reporting [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Consumer Lending Customer Lending [Member] Customer lending member Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating Segments Operating Segments [Member] Corporate and Other Adjustments Corporate, Non-Segment [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items]