Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivatives and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Equity [Abstract] Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Receivables [Abstract] Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] Products and Services [Axis] Products and Services [Axis] Products and Services [Domain] Products and Services [Domain] Accounts Notes Loans And Financing Receivable By Receivable Type [Axis] Receivable Type [Axis] Receivable Type [Domain] Receivable [Domain] New Loans New Loans [Member] Non-ACI loans Non-ACI loans [Member] ACI loans ACI loans [Member] Financing Receivable Recorded Investment by Class of Financing Receivable [Axis] Class of Financing Receivable, Type [Axis] Class of Financing Receivable, Type [Domain] Class of Financing Receivable, Type [Domain] 1-4 single family residential 1-4 single family residential [Member] Home equity loans and lines of credit Home equity loans and lines of credit [Member] Multi-family Multifamily [Member] Commercial real estate, Owner occupied Commercial Real Estate Owner Occupied [Member] Commercial Real Estate Owner Occupied [Member] [Member] Commercial real estate, Non-owner occupied Commercial Real Estate Non-Owner Occupied [Member] Commercial Real Estate Non-Owner Occupied [Member] Construction and land Construction and land [Member] Commercial and industrial Commercial and industrial [Member] Taxi medallion [Member] Taxi medallion [Member] Taxi medallion [Member] Other Commercial and industrial [Member] Other Commercial and industrial [Member] Other Commercial and industrial [Member] Commercial Lending Subsidiaries Commercial Finance Subsidiaries [Member] Commercial Finance Subsidiaries [Member] Commercial Commercial Portfolio Segment [Member] Residential Residential Portfolio Segment [Member] Consumer Consumer Portfolio Segment [Member] Financing Receivable Impaired [Line Items] Financing Receivable, Impaired [Line Items] Recorded Investment, With no specific allowance recorded Impaired Financing Receivable, with No Related Allowance, Recorded Investment Recorded Investment, With a specific allowance recorded Impaired Financing Receivable, with Related Allowance, Recorded Investment Recorded Investment, Total Impaired Financing Receivable, Recorded Investment UPB, With no specific allowance recorded Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance UPB, With a specific allowance recorded Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance UPB, Total Impaired Financing Receivable, Unpaid Principal Balance Related Specific Allowance, Impaired loans Impaired Financing Receivable, Related Allowance Earnings Per Share [Abstract] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Unvested shares Restricted Stock [Member] Stock options and warrants Equity Option [Member] Antidilutive Securities Excluded from Computation of Earnings per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Potentially dilutive securities outstanding (in Shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Schedule of Interest Rate Contract Derivative Financial Instruments and Related Hedged Items Schedule of Interest Rate Derivatives [Table Text Block] Schedule of Interest Rate Swaps Subject to Master Netting Agreements Schedule of Interest Rate Swaps Subject to Master Netting Agreements Tabular disclosure for offsetting or not offsetting fair value amounts recognized for derivative instruments against such amounts recognized for the right to reclaim cash collateral (a receivable) or the obligation to return cash collateral (a payable) arising from derivative instruments recognized at fair value. Gross Amounts Recognized, Derivative assets Derivative Asset, Fair Value, Gross Asset Gross Amounts Recognized, Derivative liabilities Derivative Liability, Fair Value, Gross Liability Gross Amounts Recognized, Derivative assets and liabilities Gross Amounts Recognized Derivative Assets And Liabilities Gross Amounts Recognized Derivative Assets And Liabilities Gross Amounts Offset in Balance Sheet, Derivative assets Derivative Asset, Collateral, Obligation to Return Cash, Offset Gross Amounts Offset in Balance Sheet, Derivative liabilities Derivative Liability, Collateral, Right to Reclaim Cash, Offset Gross Amounts Offset in Balance Sheet, Derivative assets and liabilities Derivative Asset (Liability), Collateral, Offset Derivative Asset (Liability), Collateral, Offset Net Amounts Presented in Balance Sheet, Derivative assets Derivative Asset, Fair Value, Amount Not Offset Against Collateral Net Amounts Presented in Balance Sheet, Derivative liabilities Derivative Liability, Fair Value, Amount Not Offset Against Collateral Net Amounts Presented in Balance Sheet, Derivative assets and liabilities Derivative Asset (Liability), Fair Value, Amount Not Offset Against Collateral Derivative Asset (Liability), Fair Value, Amount Not Offset Against Collateral Gross Amounts Not Offset in Balance Sheet Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract] Derivative Instruments, Derivative assets Derivative Asset, Fair Value, Gross Liability Derivative Instruments, Derivative liabilities Derivative Liability, Fair Value, Gross Asset Derivative Instruments, Derivative assets and liabilities Derivative Asset (Liability), Fair Value, Gross Liability (Asset) Derivative Asset (Liability), Fair Value, Gross Liability (Asset) Collateral Pledged, Derivative assets Derivative Asset, Fair Value of Collateral Collateral Pledged, Derivative liabilities Derivative Liability, Fair Value of Collateral Collateral Pledged, Derivative assets and liabilities Derivative asset, liability fair value of collateral Derivative asset, liability fair value of collateral. Net Amount, Derivative assets Derivative Asset Net Amount, Derivative liabilities Derivative Liability Net Amount, Derivative assets and liabilities Derivative Assets (Liabilities), at Fair Value, Net Basic earnings per common share: Earnings Per Share, Basic [Abstract] Numerator: Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Net income Net Income (Loss) Attributable to Parent Distributed and undistributed earnings allocated to participating securities Participating Securities, Distributed and Undistributed Earnings (Loss), Basic Income allocated to common stockholders for basic earnings per common share Net Income (Loss) Available to Common Stockholders, Basic Denominator: Weighted Average Number of Shares Outstanding, Basic [Abstract] Weighted average common shares outstanding Weighted Average Number of Shares Issued, Basic Less average unvested stock awards Weighted Average Number of Shares, Common Stock Subject to Repurchase or Cancellation Weighted average shares for basic earnings per common share Weighted Average Number of Shares Outstanding, Basic Basic earnings per common share Earnings Per Share, Basic Diluted earnings per common share: Earnings Per Share, Diluted [Abstract] Numerator: Net Income (Loss) Available to Common Stockholders, Diluted [Abstract] Adjustment for earnings reallocated from participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Diluted Income used in calculating diluted earnings per common share Net Income (Loss) Available to Common Stockholders, Diluted Denominator: Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract] Dilutive effect of stock options Weighted Average Number Diluted Shares Outstanding Adjustment Weighted average shares for diluted earnings per common share Weighted Average Number of Shares Outstanding, Diluted Diluted earnings per common share Earnings Per Share, Diluted Fair Value Disclosures [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 Fair Value, Inputs, Level 3 [Member] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] US Treasury Securities US Treasury Securities [Member] U.S. Government agency and sponsored enterprise residential MBS US Government agency and sponsored enterprise residential mortgage-backed securities [Member] US Government agency and sponsored enterprise residential mortgage-backed securities [Member] U.S. Government agency and sponsored enterprise commercial MBS US Government agency and sponsored enterprise commercial mortgage-backed securities [Member] Resecuritized real estate mortgage investment conduits ("Re-Remics") [Member] Resecuritized real estate mortgage investment conduits ("Re-Remics") [Member] Private label residential mortgage-backed securities and CMOs Residential Mortgage Backed Securities [Member] Private label commercial mortgage-backed securities Commercial Mortgage Backed Securities [Member] Single family rental real estate-backed securities Single family rental real estate-backed securities [Member] Single family rental real estate-backed securities [Member] Collateralized loan obligations Collateralized Loan Obligations [Member] Non-mortgage asset-backed securities Non-mortgage asset-backed securities [Member] Preferred stocks Equity Securities [Member] State and municipal obligations US States and Political Subdivisions Debt Securities [Member] SBA securities Small Business Administration securities [Member] Other debt securities Other Debt Obligations [Member] Servicing Rights [Member] Servicing Rights [Member] Loan servicing rights including both residential mortgage and commercial loan servicing. Derivative Financial Instruments, Assets [Member] Derivative Financial Instruments, Assets [Member] Liability Class [Axis] Liability Class [Axis] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Derivative Financial Instruments, Liabilities [Member] Derivative Financial Instruments, Liabilities [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] Assets, fair value Assets, Fair Value Disclosure, Recurring Liabilities at fair value Liabilities, Fair Value Disclosure, Recurring Income Tax Disclosure [Abstract] Tax Credit Carryforward [Table] Tax Credit Carryforward [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum [Member] Maximum [Member] Tax Credit Carryforward [Line Items] Tax Credit Carryforward [Line Items] Effective Income Tax Rate Reconciliation, Percent Effective Income Tax Rate Reconciliation, Percent Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Amortization Method Qualified Affordable Housing Project Investments Amortization Method Qualified Affordable Housing Project Investments Qualified Affordable Housing Project Investments, Commitment Qualified Affordable Housing Project Investments, Commitment Maximum Loss Exposure Amount, Affordable Housing VIEs Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Earnings Per Common Share Earnings Per Share [Text Block] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Receivable Type [Axis] Receivable [Domain] Class of Financing Receivable [Axis] Financing Receivable, Modifications [Line Items] Financing Receivable, Modifications [Line Items] Financing Receivable, Modifications, Number of Contracts Financing Receivable, Modifications, Number of Contracts Financing Receivable, Modifications, Post-Modification Recorded Investment Financing Receivable, Modifications, Post-Modification Recorded Investment Financing Receivable, Modifications, Subsequent Default, Number of Contracts Financing Receivable, Modifications, Subsequent Default, Number of Contracts Financing Receivable, Modifications, Subsequent Default, Recorded Investment Financing Receivable, Modifications, Subsequent Default, Recorded Investment Interest rate derivative contracts centrally cleared through the CME Interest rate derivative contracts centrally cleared through the CME Fair value of interest rate derivative contracts centrally cleared through the CME Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion Discontinuation of Cash Flow Hedge Discontinuation of cash flow hedge, notional amount Discontinuation of cash flow hedge, notional amount. Gains and losses reported in AOCI that were reclassified into earnings as a result of discontinuance of cash flow hedges or early extinguishment of debt Amounts reclassified from AOCI into earnings as a result of discontinuation of cash flow hedges or early extinguishment of debt Amount of cash flow hedge gain or loss reclassified from AOCI into earnings as a result of discontinuation of cash flow hedges or early extinguishment of debt Amount expected to be reclassified from AOCI into income Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Available for Sale Securities Pledged as Collateral for Interest Rate Swaps Available for Sale Securities Pledged as Collateral for Interest Rate Swaps Available for Sale Securities Pledged as Collateral for Interest Rate Swaps Cash pledged as collateral for interest rate swaps Cash Pledged as Collateral for Interest Rate Swaps Cash Pledged as Collateral for Interest Rate Swaps Financial collateral pledged by counterparties to Company Financial collateral pledged by counterparties to Company Financial collateral pledged by counterparties to Company FDIC Indemnification Asset [Abstract] Schedule of Guarantor Obligations [Table] Schedule of Guarantor Obligations [Table] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Net Loss on FDIC Indemnification Net Gain Loss on Indemnification Asset [Member] Net Impact on Pre-tax Earnings Net Impact on Pretax Earnings [Member] Guarantor Obligations [Line Items] Guarantor Obligations [Line Items] Recovery of (provision for) losses on covered loans Provision for covered loans Income from resolution of covered assets, net Income from resolution of covered assets, net Income from resolution of covered assets, net Gain (loss) on sale of covered loans Gain (Loss) on sale of loans, net (loss related to covered loans) The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans and leases, including covered loans that were sold during the reporting period. Loss on covered OREO (Gain) Loss on covered OREO, net (Gain) loss on covered OREO, net Gain (Loss) Associated With Covered Assets Gain (Loss) Associated With Covered Assets Gain (Loss) Associated With Covered Assets OREO and Repossessed Assets [Member] OREO and Repossessed Assets [Member] OREO and Repossessed Assets [Member] Impaired Loans Impaired Loans [Member] Property Subject to Operating Lease [Member] Property Subject to Operating Lease [Member] Assets with Nonrecurring Changes in Fair Value Assets, Fair Value Disclosure, Nonrecurring Gains (Losses) from Nonrecurring Fair Value Changes Assets, Fair Value Adjustment Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] New Loans Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Average recorded investment in impaired loans Impaired Financing Receivable, Average Recorded Investment Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Use of Estimates, Policy [Policy Text Block] Use of Estimates, Policy [Policy Text Block] New Accounting Pronouncements, Policy [Policy Text Block] New Accounting Pronouncements, Policy [Policy Text Block] Income Statement [Abstract] Interest income: Interest and Dividend Income, Operating [Abstract] Loans Interest and Fee Income, Loans and Leases Investment securities Interest and Dividend Income, Securities, Operating, Available-for-sale Other Other Interest and Dividend Income Total interest income Interest and Dividend Income, Operating Interest expense: Interest Expense [Abstract] Deposits Interest Expense, Deposits Borrowings Interest Expense, Borrowings Total interest expense Interest Expense Net interest income before provision for loan losses Interest Income (Expense), Net Provision for (recovery of) loan losses (including $779 and $(731) for covered loans) Provision for Loan and Lease Losses Net interest income after provision for loan losses Interest Income (Expense), after Provision for Loan Loss Non-interest income: Noninterest Income [Abstract] Net loss on FDIC indemnification Net gain loss on indemnification asset Net gain loss on indemnification asset Service charges and fees Fees and Commissions Gain (loss) on sale of loans, net (including $1,882 and $(712) related to covered loans) Gain (Loss) on Sale of Loans and Leases Gain on investment securities available for sale, net Available-for-sale Securities, Gross Realized Gain (Loss) Lease financing Operating Leases, Income Statement, Lease Revenue Other non-interest income Noninterest Income, Other Operating Income Total non-interest income Noninterest Income Non-interest expense: Noninterest Expense [Abstract] Employee compensation and benefits Labor and Related Expense Occupancy and equipment Occupancy, Net Amortization of FDIC indemnification asset FDIC Indemnification Asset, Accretion of Discount Deposit insurance expense Federal Deposit Insurance Corporation Premium Expense Professional fees Professional Fees Telecommunications and data processing Communications and Information Technology Depreciation of equipment under operating lease Operating Leases, Income Statement, Depreciation Expense on Property Subject to or Held-for-lease Other non-interest expense Other Noninterest Expense Total non-interest expense Noninterest Expense Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Provision for income taxes Income Tax Expense (Benefit) Net income Earnings Per Share, Basic Earnings Per Share, Diluted Cash dividends declared per common share (in Dollars per Share) Common Stock, Dividends, Per Share, Declared Fair Value Inputs, Assets, Quantitative Information [Table] Fair Value Inputs, Assets, Quantitative Information [Table] Private label residential mortgage-backed securities and CMO's - Investment grade Private label residential mortgage-backed securities and CMO's - Investment grade [Member] Private label residential mortgage-backed securities and CMO's - Investment grade [Member] Private label residential mortgage-backed securities and CMO's - Non-investment grade Private label residential mortgage-backed securities and CMO's - Non-investment grade [Member] Private label residential mortgage-backed securities and CMO's - Non-investment grade [Member] Private label residential mortgage-backed securities and CMO's - Option-arm Private label residential mortgage-backed securities and CMO's - Option-arm [Member] Private label residential mortgage-backed securities and CMO's - Option-arm [Member] Weighted Average Weighted Average [Member] Fair Value Inputs Assets Quantitative Information [Line Items] Fair Value Inputs, Assets, Quantitative Information [Line Items] Asset transfers Fair Value, Assets, Level Transfers, Amount Fair Value, Assets, Level Transfers, Amount Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease) Current subordination level (in Percent) Current subordination level (in Percent) The current subordination level of securities. Fair value of Level 3 securities with zero subordination Fair Value of Level 3 Securities with Zero Subordination Fair Value of Level 3 Securities with Zero Subordination Financing Receivable, Recorded Investment, Nonaccrual Status Financing Receivable, Recorded Investment, Nonaccrual Status Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Covered loans Covered loans net of premiums, discounts and deferred fees and costs Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of covered loans and leases held in portfolio, including but not limited to, commercial and consumer loans. LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Common stock, par value (in Dollars per Share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (in Shares) Common Stock, Shares Authorized Common stock, shares issued (in Shares) Common Stock, Shares, Issued Common stock, shares outstanding (in Shares) Common Stock, Shares, Outstanding Income Taxes Income Tax Disclosure [Text Block] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Covered [Member] Covered [Member] UPB of loans sold Unpaid principal balance of loans sold Unpaid principal balance of loans sold. Cash proceeds, net of transaction costs Proceeds from Sale of Loans Receivable Recorded investment in loans sold Recorded investment in loans sold Recorded investment in loans sold Net pre-tax impact on earnings, excluding the impact of FDIC indemnification Net pretax impact on earnings from loans sold. Net pretax impact on earnings from loans sold. Gain (loss) on sale of covered loans, net Gain (loss) on FDIC indemnification, net Gain (Loss) on indemnification asset from covered loans sold Gain (Loss) on indemnification asset from covered loans sold. Schedule of Changes in AOCI Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of the Categories of AOCI and Changes Therein Comprehensive Income (Loss) [Table Text Block] Investments, Debt and Equity Securities [Abstract] Investment Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Document and Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding Entity Public Float Entity Public Float Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Current Reporting Status Entity Current Reporting Status Entity Voluntary Filers Entity Voluntary Filers Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Fair Value Portion at Fair Value Measurement [Member] Carrying Value Reported Value Measurement [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Assets: Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Investment securities available for sale Available-for-sale Securities Investment securities held to maturity Held-to-maturity Securities, Fair Value Non-marketable equity securities Federal Home Loan Bank Stock and Federal Reserve Bank Stock Loans held for sale Loans Held-for-sale, Fair Value Disclosure Covered loans Covered loans, Fair Value This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents covered loan receivable as presented on the statement of financial position which may include mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts, or any other loans which are due the Company as of the balance sheet date. Non-covered loans Non-covered loans, Fair Value This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents non-covered loan receivable as presented on the statement of financial position which may include mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts, or any other loans which are due the Company as of the balance sheet date. FDIC indemnification asset FDIC indemnification asset, Fair Value Fair value amount of receivable assets originating from the indemnification agreement with the Federal Deposit Insurance Corporation (FDIC), in which the FDIC is to partially cover losses. Accrued interest receivable Interest Receivable Derivative assets Liabilities: Liabilities [Abstract] Demand, savings and money market deposits Deposits, Money Market Deposits and Negotiable Order of Withdrawal (NOW) Time Deposits Time Deposits FHLB advances Federal Home Loan Bank Borrowings, Fair Value Disclosure Notes Payable, Fair Value Disclosure Notes Payable, Fair Value Disclosure Accrued interest payable Interest Payable Derivative liabilities Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Original Loan to Value [Axis] Loan to Value [Axis] Loan to Value [Domain] Loan to Value [Domain] 60% or less Loan to Value Sixty Percent or Less [Member] 60% - 70% Loan to Value Sixty Percent to Seventy Percent [Member] 70% - 80% Loan to Value Seventy Percent to Eighty Percent [Member] More than 80% Loan to Value Eighty Percent or More [Member] Credit Score [Axis] Credit Score [Axis] Credit Score [Domain] Credit Score [Domain] FICO, 720 or less FICO Score 720 or Less [Member] FICO Score 720 or Less [Member] FICO, 721 to 740 FICO Score 721 to 740 [Member] FICO Score 721 to 740 [Member] FICO, 741 to 760 FICO Score 741 to 760 [Member] FICO, 761 or greater FICO Score 761 or Greater [Member] Residential Financing Receivable Recorded Investment [Line Items] Financing Receivable, Recorded Investment [Line Items] Non-covered loans, net of premiums, discounts and deferred fees and costs Loans and Leases Receivable, Net of Deferred Income Commitments and Contingencies Disclosure [Abstract] Lending Related Commitments [Table] Schedule of Fair Value, Off-balance Sheet Risks [Table] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Commitments to fund loans Loan Origination Commitments [Member] Commitments to purchase loans Loan Purchase Commitments [Member] Unfunded commitments under lines of credit [Member] Unfunded commitments under lines of credit [Member] Commercial and standby letters of credit Commercial and standby letters of credit [Member] Unfunded commitment under lines of credit - covered Unfunded commitments under lines credit - Covered [Member] Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] Total lending related commitments outstanding Unused Commitments to Extend Credit Dividend Equivalent Rights Dividend Equivalent Rights Number of freestanding rights to share in dividends on a one-for-one basis Residential Servicing Rights [Member] Residential Servicing Rights [Member] [Member] Residential Servicing Rights [Member] [Member] Commercial Servicing Rights [Member] Commercial Servicing Rights [Member] [Member] Commercial Servicing Rights [Member] [Member] Valuation Technique [Axis] Valuation Technique [Axis] Valuation Technique [Domain] Valuation Technique [Domain] Discounted cash flow Income Approach Valuation Technique [Member] Total fair value of assets Fair Value Inputs, Prepayment Rate Fair Value Inputs, Prepayment Rate Probability rate of default Fair Value Inputs, Probability of Default Loss severity Fair Value Inputs, Loss Severity Fair Value Inputs, Discount Rate Fair Value Inputs, Discount Rate Fair Value Inputs, Average fare per trip (Taxi Medallion) Fair Value Inputs, Average fare per trip (Taxi Medallion) Fair Value Inputs, Average fare per trip (Taxi Medallion) Fair Value Inputs, Number of trips per shift (Taxi Medallion) Fair Value Inputs, Number of trips per shift (Taxi Medallion) Fair Value Inputs, Number of trips per shift (Taxi Medallion) Fair Value Inputs, Days Worked per Month (Taxi Medallion) Fair Value Inputs, Days Worked per Month (Taxi Medallion) Fair Value Inputs, Days Worked per Month (Taxi Medallion) Fair Value Inputs, Second Shift Rental Achievement Rate (Taxi Medallion) Fair Value Inputs, Second Shift Rental Achievement Rate (Taxi Medallion) Fair Value Inputs, Second Shift Rental Achievement Rate (Taxi Medallion) Disclosure of Compensation Related Costs, Share-based Payments [Abstract] 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] Equity Award [Domain] Equity Award [Domain] Unvested and restricted share awards [Member] Unvested and restricted share awards [Member] Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) [Member] Performance Shares [Member] Performance Shares [Member] RSU and PSU Awards [Member] RSU and PSU Awards [Member] RSU and PSU Awards [Member] Liability based awards settled in shares [Member] Liability based awards settled in shares [Member] Liability based awards settled in shares [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, Equity Instruments Other than Options, Grants in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Aggregate fair value of shares granted during period Aggregate fair value of shares granted during period Aggregate fair value of shares granted during period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent Employee Service Share-based Compensation, Cash Flow Effect, Cash Used to Settle Awards Employee Service Share-based Compensation, Cash Flow Effect, Cash Used to Settle Awards Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options Provision for (recovery of) covered loan losses Gain (loss) on sale of covered loans FDIC Indemnification Asset [Roll Forward] FDIC Indemnification Asset [Roll Forward] FDIC Indemnification Asset and Liability, net FDIC Indemnification Asset and Liability, net FDIC Indemnification Asset and Liability, net Amortization of FDIC indemnification asset Decrease in FDIC indemnification asset for claims filed Decrease (Increase) In FDIC Indemnification Asset, Claims Filed, Investing Activities Decrease (Increase) In FDIC Indemnification Asset, Claims Filed, Investing Activities FDIC Indemnification Asset and Liability, net FDIC indemnification asset FDIC Indemnification Asset Other Liabilities FDIC Indemnification Liability FDIC Indemnification Liability FDIC Indemnification Asset and Liability, net Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Derivatives designated as cash flow hedges Designated as Hedging Instrument [Member] Derivatives not designated as hedges Not Designated as Hedging Instrument [Member] Derivative Instrument Risk [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Pay-Fixed interest rate swaps - Borrowings Pay-Fixed Interest Rate Swaps - Borrowings [Member] Interest rate swaps used to hedge interest payments on variable rate borrowings Pay-Fixed Forward-Starting Swap - Borrowings Pay-Fixed Forward-Starting Swap - Borrowings [Member] Pay-Fixed Forward-Starting interest rate swaps used to hedge interest payments on variable rate borrowings [Member] Pay-fixed interest rate swaps [Member] [Member] Pay-fixed interest rate swaps [Member] [Member] Pay-fixed interest rate swaps [Member] [Member] Pay-variable interest rate swaps [Member] Pay-variable interest rate swaps [Member] Pay-variable interest rate swaps [Member] [Member] Interest rate caps purchased, indexed to 1-month Libor [Domain] Interest rate caps purchased, indexed to 1-month Libor [Domain] Interest rate caps purchased, indexed to 1-month Libor [Domain] Interest rate caps sold, indexed to 1-month Libor [Domain] [Domain] Interest rate caps sold, indexed to 1-month Libor [Domain] [Domain] Interest rate caps sold, indexed to 1-month Libor [Domain] [Domain] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other Liabilities Other Liabilities [Member] Other Assets Other Assets [Member] Derivatives Fair Value [Line Items] Derivatives, Fair Value [Line Items] Weighted average fixed rate of interest rate derivatives (in Percent) Derivative, Average Fixed Interest Rate Weighted average remaining maturity of interest rate derivatives (in Duration) Derivative, Average Remaining Maturity Notional amount of interest rate derivatives Derivative, Notional Amount Interest rate derivative assets, fair value Interest Rate Derivative Assets, at Fair Value Interest rate derivative liabilities, fair value Interest Rate Derivative Liabilities, at Fair Value Schedule of Available-for-sale Securities Reconciliation Schedule of Available-for-sale Securities Reconciliation [Table Text Block] Investments Classified by Contractual Maturity Date Investments Classified by Contractual Maturity Date [Table Text Block] Schedule of Realized Gain (Loss) Schedule of Realized Gain (Loss) [Table Text Block] Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] Proceeds from sale of investment securities available for sale Proceeds from Sale of Available-for-sale Securities Gross realized gains Available-for-sale Securities, Gross Realized Gains Gross realized losses Available-for-sale Securities, Gross Realized Losses Net realized gain Available-for-sale Securities, Gross Realized Gain (Loss), Excluding Other than Temporary Impairments OTTI Other than Temporary Impairment Losses, Investments, Available-for-sale Securities Gain on investment securities available for sale, net 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] Beginning Balance Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Reclassifications from non-accretable difference Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications from Nonaccretable Difference Accretion Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion Ending Balance Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Reconciliation of the Changes in the Fair Value of Assets and Liabilities Measured on a Recurring Basis, Unobservable Input Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Valuation Techniques and Unobservable Inputs Used in the Valuation of Financial Instruments Falling Within Level 3 of the Fair Value Hierarchy Fair Value Inputs, Assets, Quantitative Information [Table Text Block] Schedule of Assets for Which Nonrecurring Changes in Fair Value have been Recorded Fair Value Measurements, Nonrecurring [Table Text Block] Schedule of the Carrying Value and Fair Value of Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Computation of Basic and Diluted Earnings Per Common Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Potentially Dilutive Securities Outstanding Categorized Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] 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] Fair Value Measurements Fair Value Disclosures [Text Block] Equity Based Compensation [Abstract] Equity Based Compensation [Abstract] Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of the Total Lending Related Commitments Outstanding Supply Commitment [Table Text Block] Statement of Comprehensive Income [Abstract] Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Unrealized gains on investment securities available for sale: Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax [Abstract] Net unrealized holding gain (loss) arising during the period Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Reclassification adjustment for net securities gains realized in income Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Net change in unrealized gains on securities available for sale Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Unrealized losses on derivative instruments: Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax [Abstract] Net unrealized holding gain (loss) arising during the period Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Reclassification adjustment for net losses realized in income Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax Net change in unrealized losses on derivative instruments Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Net unrealized holding gain (loss) arising during the period, Before Tax Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax Amounts reclassified to gain on investment securities available for sale, net, Before Tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax Net change in unrealized gains on securities available for sale, Before Tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax Net unrealized holding gain (loss) arising during the period, Tax Effect Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax Amounts reclassified to gain on investment securities available for sale, net, Tax Effect Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax Net change in unrealized gains on securities available for sale, Tax Effect Other Comprehensive Income (Loss), Available-for-sale Securities, Tax Net unrealized holding gain (loss) arising during the period, Net of Tax Amounts reclassified to gain on investment securities available for sale, net, Net of Tax Net unrealized holding gain (loss) arising during the period, Before Tax Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax Amounts reclassified to interest expense on borrowings, Before Tax Amounts reclassified to interest expense on borrowings, before tax Amounts reclassified to interest expense on borrowings, before tax Net change in unrealized losses on derivative instruments, Before Tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax Net unrealized holding gain (loss) arising during the period, Tax Effect Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax Amounts reclassified to interest expense on borrowings, Tax Effect Amounts reclassified to interest expense on borrowings, tax effect Amounts reclassified to interest expense on borrowings, tax effect Net change in unrealized losses on derivative instruments, Tax Effect Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Net unrealized holding gain (loss) arising during the period, Net of Tax Amounts reclassified to interest expense on borrowings, Net of Tax Amounts reclassified to interest expense on borrowings, net of tax Amounts reclassified to interest expense on borrowings, net of tax Other comprehensive income (loss), Before Tax Other Comprehensive Income (Loss), before Tax Other comprehensive income (loss), Tax Effect Other Comprehensive Income (Loss), Tax Other comprehensive income (loss) Summary of the Gains and Losses Associated with Covered Assets Summary of the Gains and Losses Associated with Covered Assets Tabular disclosure of gains and losses associated with covered assets. Changes in the FDIC Indemnification Asset FDIC Indemnification Asset Roll Forward [Table Text Block] FDIC Asset and Liability FDIC Asset and Liability [Table Text Block] [Table Text Block] for FDIC Asset and Liability [Table] 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 or More Past Due Financing Receivables, Equal to Greater than 90 Days Past Due [Member] New and Non-ACI loans New and Non-ACI loans [Member] Consumer Financing Receivable Investment Past Due [Line Items] Financing Receivable, Recorded Investment, Past Due [Line Items] Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing Loans, Current Financing Receivable, Recorded Investment, Current Financing Receivable, Recorded Investment, Past Due Financing Receivable, Recorded Investment, Past Due Loans net of premiums, discounts and deferred fees and costs Loans net of premiums, discounts and deferred fees and costs, covered and non-covered Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of covered and not covered loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Covered loans net of premiums, discounts and deferred fees and costs Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Collateralized loan obligations State and municipal obligations Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Gross Unrealized Losses Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Schedule of Financing Receivable, Allowance for Credit Losses [Table] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Commercial Financing Receivable Allowance for Credit Losses [Line Items] Financing Receivable, Allowance for Credit Losses [Line Items] Allowance for Loan and Lease Losses [Roll Forward] Allowance for Loan and Lease Losses [Roll Forward] Beginning Balance Financing Receivable, Allowance for Credit Losses Provision for (recovery of) loan losses Charge-offs Allowance for Loan and Lease Losses, Write-offs Recoveries Allowance for Loan and Lease Loss, Recovery of Bad Debts Ending Balance Allowance, balance, loans individually evaluated for impairment Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Allowance, balance, loans collectively evaluated for impairment Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Loans individually evaluated for impairment, balance Financing Receivable, Individually Evaluated for Impairment Loans collectively evaluated for impairment, balance Financing Receivable, Collectively Evaluated for Impairment Loans net of premiums, discounts and deferred fees and costs Cash and due from banks: Cash and Due from Banks [Abstract] Non-interest bearing Cash and Due from Banks Interest bearing Interest-bearing Deposits in Banks and Other Financial Institutions Interest bearing deposits at Federal Reserve Bank Interest bearing deposits at Federal Reserve Bank Interest bearing deposits at Federal Reserve Bank. Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Investment securities available for sale, at fair value Investment securities held to maturity Held-to-maturity Securities Loans held for sale Loans Receivable Held-for-sale, Net, Not Part of Disposal Group Loans (including covered loans of $578,596 and $614,042) Allowance for loan and lease losses Allowance for loan and lease losses, covered and non-covered loans Amount of allowance for loan and lease losses covered and not covered by loss sharing agreements. Loans, net Loans and Leases Receivable, Net Reported Amount, Covered and Not Covered FDIC indemnification asset Bank owned life insurance Bank Owned Life Insurance Equipment under operating lease, net Property Subject to or Available for Operating Lease, Net Deferred tax asset, net Deferred Tax Assets, Net of Valuation Allowance Goodwill and other intangible assets Intangible Assets, Net (Including Goodwill) Other assets Other Assets Total assets Assets Demand deposits: Deposits [Abstract] Non-interest bearing Noninterest-bearing Domestic Deposit, Demand Interest bearing Interest-bearing Domestic Deposit, Demand Savings and money market Deposits, Savings Deposits Total deposits Deposits Federal Home Loan Bank advances Long-term Federal Home Loan Bank Advances Notes and other borrowings Long-term Debt and Capital Lease Obligations Other liabilities Other Liabilities Total liabilities Liabilities Commitments and contingencies Commitments and Contingencies Common stock, par value $0.01 per share, 400,000,000 shares authorized; 106,839,197 and 104,166,945 shares issued and outstanding Common Stock, Value, Issued Paid-in capital Additional Paid in Capital Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Total stockholders' equity Stockholders' Equity Attributable to Parent Total liabilities and stockholders' equity Liabilities and Equity Accumulated Other Comprehensive Income Loss [Table] Accumulated Other Comprehensive Income (Loss) [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Unrealized Gains on Investment Securities Available for Sale Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] Unrealized Losses on Derivative Instruments Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Accumulated Other Comprehensive Income Loss [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Other comprehensive income, Beginning Balance Other comprehensive income, Ending Balance Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Number of Option Awards Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Exercised (in Shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Equity Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] FDIC Indemnification Asset Federal Deposit Insurance Corporation Indemnification Asset [Text Block] This Footnote represents the disclosure regarding the FDIC Indemnification Asset Summary of Significant Accounting Policies [Table] Summary of Significant Accounting Policies [Table] Summary of Significant Accounting Policies [Table] Summary of Significant Accounting Policies [Axis] Summary of Significant Accounting Policies [Axis] Summary of Significant Accounting Policies [Axis] Summary of Significant Accounting Policies [Domain] Summary of Significant Accounting Policies [Domain] [Domain] for Summary of Significant Accounting Policies [Axis] Summary of Significant Accounting Policies [Line Items] Summary of Significant Accounting Policies [Line Items] [Line Items] for Summary of Significant Accounting Policies [Table] Number Of Subsidiaries Number Of Subsidiaries Number Of Subsidiaries Number of branches located in Florida (in Branches) Number of branches located in Florida (in Branches) The number of BankUnited branches Number of Florida counties with branches (in counties) Number of geographic areas BankUnited branches are located in (in Counties) The number of Florida counties that the bank operates in. Number of branches located in New York metropolitan area (in Branches) Number of branches located in New York metropolitan area (in Branches) Number of branches located in New York. Number of loss sharing agreements Number Of Loss Sharing Agreements Number of Loss Sharing Agreements Percent FDIC will reimburse for covered losses (in Percent) Percent FDIC will reimburse for covered losses (in Percent) Percent that FDIC covers losses under loss sharing agreement. Limit on losses reimbursed at 80% Maximum amount FDIC will reimburse Maximum amount FDIC will reimburse BankUnited Percent of losses in excess of limit FDIC will reimburse (in Percent) Percent of losses in excess of maximum amount FDIC will reimburse (in Percent) Percent of losses in excess of maximum amount FDIC will reimburse BankUnited New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Diluted Earnings Per Share New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Diluted Earnings Per Share Fees and Commissions, Depositor Accounts Fees and Commissions, Depositor Accounts Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Common Stock Common Stock [Member] Paid-in Capital Additional Paid-in Capital [Member] Retained Earnings Retained Earnings [Member] Accumulated Other Comprehensive Income AOCI Attributable to Parent [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance (in Shares) Shares, Outstanding Balance Comprehensive income Dividends Dividends, Common Stock, Cash Equity based compensation (in Shares) Stock Issued During Period, Shares, Share-based Compensation, Gross Equity based compensation Stock Issued During Period, Value, Share-based Compensation, Gross Forfeiture of unvested shares (in Shares) Stock Issued During Period, Shares, Share-based Compensation, Forfeited Forfeiture of unvested shares and shares surrendered for tax withholding obligations Stock Issued During Period, Value, Share-based Compensation, Forfeited Exercise of stock options (in Shares) Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Tax benefits from dividend equivalents and equity based compensation Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Balance (in Shares) Balance Capital Leases, Net Investment in Direct Financing Leases Capital Leases, Net Investment in Direct Financing Leases Purchases of loans Payments to Acquire Loans Held-for-investment Unpaid principal balance of real estate loans pledged as security for FHLB advances Unpaid principal balance of real estate loans pledged as security for FHLB advances The unpaid principal balance of pledged real estate loans. Recorded investment of real estate loans pledged as security for FHLB advances Pledged Financial Instruments, Not Separately Reported, Loans Receivable, for Federal Home Loan Bank Debt Unpaid principal balance of ACI loans Unpaid principal balance of ACI loans Amount of unpaid principal balance of ACI loans Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans Financing receivable credit quality indicator, the value at which relationships are reevaluated at least annually Financing receivable credit quality indicator, the value at which relationships are reevaluated at least annually Financing receivable credit quality indicator, the value at which relationships are reevaluated at least annually The value at which non accrual status commercial relationships are evaluated for impairment The value at which non accrual status commercial relationships are evaluated for impairment The value at which non accrual status commercial relationships are evaluated for impairment Other Real Estate, Foreclosed Assets, and Repossessed Assets Other Real Estate, Foreclosed Assets, and Repossessed Assets Mortgage Loans in Process of Foreclosure, Amount Mortgage Loans in Process of Foreclosure, Amount Impaired Financing Receivable, Interest Income, Accrual Method Impaired Financing Receivable, Interest Income, Accrual Method U.S. Treasury securities Re-Remics Other debt securities Amortized Cost Available-for-sale Securities, Amortized Cost Basis Gross Unrealized Gains ACI Loans, Non-Covered ACI Loans, Non-covered [Member] ACI Loans, Non-covered [Member] ACI Loans, Covered ACI Loans, Covered [Member] ACI Loans, Covered [Member] Non-ACI Non-ACI Loans, Covered [Member] Non-ACI Loans, Covered [Member] Financing Receivable Recorded Investment by Class of Financing Receivable [Domain] Non-covered loans, gross Loans and Leases Receivable, Gross Covered loans, gross Loans and Leases Receivable, Gross, Carrying Amount, Covered Loans, gross Loans and Leases Receivable, Gross, Covered and Non-Covered Gross carrying amount of all categories of loans and leases held in portfolio, before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Includes receivables covered through loss sharing agreements. Non-covered premiums, discounts and deferred fees and costs, net Loans and Leases Receivable, Deferred Income Covered premiums, discounts and deferred fees and costs, net Premiums, discounts and deferred fees and costs, net, covered loans Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Limited to amounts for loans and leases covered under loss sharing agreements. Premiums, discounts and deferred fees and costs, net Premiums, discounts and deferred fees and costs, net, covered and non-covered loans Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Includes covered and not covered loans. Loans and Leases Receivable, Net of Deferred Income Covered loans net of premiums, discounts and deferred fees and costs Non-covered Allowance for loan and lease losses Loans and Leases Receivable, Allowance Covered Allowance for loan and lease losses Loans and Leases Receivable, Allowance, Covered Non-covered loans, net Loans and Leases Receivable, Net Amount Covered loans, net Loans and Leases Receivable, Net Reported Amount, Covered Percent of Total Percent of total loans (in Percent) The percent of total loans. Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] 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] Amortization and accretion, net Amortization accretion of discounts and premiums Amortization of discounts, premiums and net loan fees and costs on investment securities, loans and other financial instruments including the FDIC Indemnification Asset. Provision for loan losses Income from resolution of covered assets, net Net loss on FDIC indemnification Gain on sale of loans, net (Increase) decrease in cash surrender value of bank owned life insurance Life Insurance, Corporate or Bank Owned, Change in Value Gain on investment securities available for sale, net Gain (Loss) on Investments Equity based compensation Share-based Compensation Depreciation and amortization Depreciation, Amortization and Accretion, Net Deferred income taxes Deferred Income Tax Expense (Benefit) Proceeds from sale of loans held for sale Proceeds from Sale of Loans Held-for-sale Loans originated for sale, net of repayments Payments for Origination of Mortgage Loans Held-for-sale Other: Increase (Decrease) in Operating Capital [Abstract] (Increase) decrease in other assets Increase (Decrease) in Other Operating Assets Increase (decrease) in other liabilities Increase (Decrease) in Other Operating Liabilities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Net Cash Provided by (Used in) Investing Activities [Abstract] Purchase of investment securities available for sale Payments to Acquire Available-for-sale Securities Proceeds from repayments and calls of investment securities available for sale Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Purchase of non-marketable equity securities Payments to Acquire Federal Home Loan Bank Stock Proceeds from redemption of non-marketable equity securities Proceeds from Sale of Federal Home Loan Bank Stock Purchases of loans Loan originations, repayments and resolutions, net Payments for (Proceeds from) Loans and Leases Proceeds from sale of loans, net Proceeds from Sale of Loans Held-for-investment Decrease in FDIC indemnification asset for claims filed Acquisition of equipment under operating lease, net Payments to Acquire Equipment on Lease Other investing activities Payments for (Proceeds from) Other Investing Activities 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 increase in deposits Increase (Decrease) in Deposits Additions to Federal Home Loan Bank advances Proceeds from Federal Home Loan Bank Borrowings Repayments of Federal Home Loan Bank advances Repayments of Federal Home Loan Bank Borrowings Dividends paid Payments of Ordinary Dividends, Common Stock Exercise of stock options Proceeds from Stock Options Exercised Other financing activities Proceeds from (Payments for) Other Financing Activities Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Net decrease in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Supplemental Cash Flow Information [Abstract] Supplemental Cash Flow Information [Abstract] Interest paid Interest Paid, Net Income taxes paid (received), net Income Taxes Paid, Net Supplemental schedule of non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Transfers from loans to other real estate owned and other repossessed assets Real Estate Owned, Transfer to Real Estate Owned Transfers from loans to loans held for sale Transfer of Portfolio Loans and Leases to Held-for-sale Dividends declared, not paid Dividends declared and payable Dividends declared and payable Unsettled purchases of investment securities available for sale Noncash or Part Noncash Acquisition, Investments Acquired Obligations incurred in acquisition of affordable housing limited partnerships Obligation incurred in acquisition of limited partnership Noncash obligation incurred in acquisition of limited partnership at time of initial acquisition Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balance at beginning of period, fair value of assets Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Gains (losses) for the period included in Other comprehensive income (loss) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Amortization Amortization Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Balance at end of period, fair value of assets Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Schedule of Loans Categorized Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Accretable Yield Rollfoward [Table Text Block] Accretable Yield Rollfoward [Table Text Block] Accretable Yield Rollfoward [Table Text Block] Covered Loan Sales - Residential [Table Text Block] Covered Loan Sales - Residential [Table Text Block] Covered Loan Sales - Residential [Table Text Block] Allowance for Credit Losses on Financing Receivables Allowance for Credit Losses on Financing Receivables [Table Text Block] Impaired Financing Receivables Impaired Financing Receivables [Table Text Block] Schedule of Recorded Investment in New and Non-ACI Loans on Non-Accrual Status Schedule of Financing Receivables, Non Accrual Status [Table Text Block] Financing Receivable Credit Quality Indicators Financing Receivable Credit Quality Indicators [Table Text Block] Schedule of Past Due Financing Receivables Past Due Financing Receivables [Table Text Block] Troubled Debt Restructurings on Financing Receivables [Table Text Block] Troubled Debt Restructurings on Financing Receivables [Table Text Block] Due in one year or less, Amortized Cost Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis Due after one year through five years, Amortized Cost Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis Due after five years through ten years, Amortized Cost Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis Due after ten years, Amortized Cost Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Preferred stocks with no stated maturity Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis Due in one year or less, Fair Value Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value Due after one year through five years, Fair Value Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value Due after five years through ten years, Fair Value Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value Due after ten years, Fair Value Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value Preferred Stocks with no stated maturity, Fair Value Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value Fair Value US Government Agencies and sponsored enterprise MBS [Member] Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] Number of held-to-maturity securities Number Of Held-To-Maturity Securities Number Of Held-To-Maturity Securities Weighted average life of investment portfolio (in Duration) Weighted average life of investment portfolio (in Duration) Weighted average life of investment portfolio. Effective duration of investment portfolio (in Duration) Effective duration of investment portfolio (in Duration) Effective duration of investment portfolio. Available-for-sale Securities Pledged as Collateral Available-for-sale Securities Pledged as Collateral Number of securities determined to be other than temporarily impaired during the period (in Securities) Number of securities determined to be other than temporarily impaired during the period Number of securities in unrealized loss positions (in Securities) Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Number of fixed-rate securities in unrealized loss positions Number of fixed-rate securities in unrealized loss positions Number of securities in unrealized loss positions that have fixed interest rates Number of variable-rate securities in unrealized loss positions Number of variable-rate securities in unrealized loss positions Number of securities in unrealized loss positions with variable interest rates Number of securities which impairment considered insignificant (in Securities) Number of securities which impairment considered insignificant (in Securities) Number of securities which impairment was considered insignificant. Available-for-sale securities, gross unrealized loss, considered insignificant Available-for-sale securities, Gross Unrealized Loss, Considered Insignificant for OTTI Analysis Available-for-sale securities, Gross Unrealized Loss, Considered Insignificant for OTTI Analysis Unrealized loss as a percent of amortized cost on securities in continuous unrealized loss positions (or less, less than) Unrealized loss as a percent of amortized cost on securities in continuous unrealized loss positions Unrealized loss as a percent of amortized cost on securities in continuous unrealized loss positions Loans and Allowance for Loan and Lease Losses Loans, Notes, Trade and Other Receivables Disclosure [Text Block]