Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative [Table] Derivative [Table] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Derivatives designated as hedging instruments Designated as Hedging Instrument [Member] Derivatives not designated as hedging instruments Not Designated as Hedging Instrument [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Interest rate swaps on FHLB advances Interest Rate Swaps, FHLB Advances [Member] Interest Rate Swaps, FHLB Advances [Member] Mortgage backed securities forwards Mortgage Backed Securities, Other [Member] Interest rate swaps and swaptions Interest Rate Swaps and Swaptions [Member] Interest Rate Swaps and Swaptions [Member] Futures Future [Member] Interest rate swaps Interest Rate Swap [Member] Derivative Derivative [Line Items] Derivative Asset Derivative Asset [Abstract] Gross Amount Derivative Asset, Fair Value, Gross Asset Gross Amounts Netted in the Statement of Financial Position Derivative Asset, Fair Value, Gross Liability Net Amount Presented in the Statement of Financial Position Derivative Asset Gross Amounts Not Offset in the Statement of Financial Condition, Financial Instruments Derivative, Collateral, Obligation to Return Securities Gross Amounts Not Offset in the Statement of Financial Condition, Cash Collateral Derivative, Collateral, Obligation to Return Cash Derivative Liability Derivative Liability [Abstract] Gross Amount Derivative Liability, Fair Value, Gross Liability Gross Amounts Netted in the Statement of Financial Position Derivative Liability, Fair Value, Gross Asset Net Amount Presented in the Statement of Financial Position Derivative Liability Gross Amounts Not Offset in the Statement of Financial Condition, Financial Instruments Derivative, Collateral, Right to Reclaim Securities Gross Amounts Not Offset in the Statement of Financial Condition, Cash Collateral Derivative, Collateral, Right to Reclaim Cash Statement of Comprehensive Income [Abstract] Net income Net Income (Loss) Attributable to Parent Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), before Tax [Abstract] Investment securities Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment and Other than Temporary Impairment Losses, Net of Tax, Portion Attributable to Parent Net amount of the appreciation (loss) in value and other than temporary impairment (OTTI) losses of unsold available-for-sale securities attributable to the parent entity. Derivatives and hedging activities Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Warrants and Rights Note Disclosure [Abstract] Warrants and Stock-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Transfers and Servicing [Abstract] Schedule of Servicing Assets at Fair Value [Table] Schedule of Servicing Assets at Fair Value [Table] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Residential first mortgage loans First Mortgage [Member] Servicing Assets at Fair Value [Line Items] Servicing Assets at Fair Value [Line Items] Servicing Asset at Fair Value [Roll Forward] Servicing Asset at Fair Value, Amount [Roll Forward] Balance at beginning of period Servicing Asset at Fair Value, Amount Additions from loans sold with servicing retained Servicing Asset at Fair Value, Additions Reductions from sales Servicing Asset at Fair Value, Disposals Changes in fair value due to Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions [Abstract] Decrease in MSR value due to pay-offs, pay-downs and run-off Servicing Asset at Fair Value, Other Changes in Fair Value Changes in estimates of fair value Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions Fair value of MSRs at end of period Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Three Month LIBOR London Interbank Offered Rate (LIBOR) [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 6.125% senior notes, matures 2021 Senior Note 6.125 Senior Note [Member] Senior Note 6.125 Senior Note [Member] 3ML plus 3.25% maturing 2032 Three Month Libor Plus 3.25% Junior Subordinated Note Maturing 2032 [Member] Junior subordinated note which is borrowing that has a lower priority than senior instruments in event of liquidation of the entity's assets at a three month LIBOR plus 3.25 percent and matures in 2032. 3ML plus 3.25% maturing 2033 A Three Month Libor Plus 3.25% Junior Subordinated Note Maturing 2033 [Member] Junior subordinated note which is borrowing that has a lower priority than senior instruments in event of liquidation of the entity's assets at a three month LIBOR plus 3.25 percent and matures in 2033. 3ML plus 3.25% maturing 2033 B Three Month Libor Plus 3.25% Junior Subordinated Note 2 Maturing 2033 [Member] Junior subordinated note which is borrowing that has a lower priority than senior instruments in event of liquidation of the entity's assets at a three month LIBOR plus 3.25 percent and matures in 2033. 3ML plus 2.00% maturing 2035 A Three Month Libor Plus 2.00% Junior Subordinated Note Maturing 2035 [Member] Junior subordinated note which is borrowing that has a lower priority than senior instruments in event of liquidation of the entity's assets at a three month LIBOR plus 2.00 percent and matures in 2035. 3ML plus 2.00% maturing 2035 B Three Month Libor Plus 2.00% Junior Subordinated Note 2 Maturing 2035 [Member] Junior subordinated note which is borrowing that has a lower priority than senior instruments in event of liquidation of the entity's assets at a three month LIBOR plus 2.00 percent and matures in 2035. 3ML plus 1.75% maturing 2035 Three Month Libor Plus 1.75% Junior Subordinated Note Maturing 2035 [Member] Junior subordinated note which is borrowing that has a lower priority than senior instruments in event of liquidation of the entity's assets at a three month LIBOR plus 1.75 percent and matures in 2035. 3ML plus 1.50% maturing 2035 Three Month Libor Plus 1.50% Junior Subordinated Note Maturing 2035 [Member] Junior subordinated note which is borrowing that has a lower priority than senior instruments in event of liquidation of the entity's assets at a three month LIBOR plus 1.50 percent and matures in 2035. 3ML plus 1.45% maturing 2037 Three Month Libor Plus 1.45% Junior Subordinated Note Maturing 2037 [Member] Junior subordinated note which is borrowing that has a lower priority than senior instruments in event of liquidation of the entity's assets at a three month LIBOR plus 1.45 percent and matures in 2037. 3ML plus 2.50% maturing 2037 Three Month Libor Plus 2.50% Junior Subordinated Note Maturing 2037 [Member] Junior subordinated note which is borrowing that has a lower priority than senior instruments in event of liquidation of the entity's assets at a three month LIBOR plus 2.50 percent and matures in 2037. Debt Instrument Debt Instrument [Line Items] Trust Preferred Securities [Abstract] Trust Preferred Securities [Abstract] The trust preferred securities outstanding which are callable by an entity and interest is payable quarterly. Variable rate on interest rate Debt Instrument, Basis Spread on Variable Rate Senior note Senior Notes Trust preferred securities Junior Subordinated Notes Interest rate Debt Instrument, Interest Rate, Effective Percentage Long-term debt Long-term Debt Equity [Abstract] Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Earnings Per Share [Abstract] Schedule of Computation of Basic and Diluted Earnings Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] 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] Employee Stock Purchase Plan Employee Stock [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 2017 ESPP 2017 Employee Stock Purchase Plan [Member] 2017 Employee Stock Purchase Plan [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 expense Allocated Share-based Compensation Expense Stock compensation shares authorized (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Shares issued during period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period Accumulated Other Comprehensive Income (Loss) Stockholders' Equity Note Disclosure [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Santandar Bank Santandar Bank [Member] Santandar Bank [Member] Desert Community Bank Desert Community Bank [Member] Desert Community Bank [Member] Business Acquisition Business Acquisition [Line Items] Outstanding loan receivable acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans Receivable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans Receivable Commitments assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Commitments Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Commitments Number of bank branches Number of Bank Branches Acquired Number of Bank Branches Acquired Deposits Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits Intangible assets and goodwill acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets including Goodwill Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets including Goodwill Disclosure of Transfer of Securitizations or Asset-backed Financing Financial Assets Accounted for as Sale [Abstract] Variable Interest Entities Private label Securitization and Variable Interest Entity Activity [Text Block] The entire disclosure for a transferor's continuing involvement in financial assets that it has transferred in a securitization, the nature of any restrictions on assets reported by an entity in its statement of financial position that relate to a transferred financial asset (including the carrying amounts of such assets), how servicing assets and servicing liabilities are reported, and for securitization or asset-backed financing arrangements accounted for as sales when a transferor has continuing involvement with the transferred financial assets and transfers of financial assets accounted for as secured borrowings, how the transfer of financial assets affects an entity's financial position, financial performance, and cash flows. Also includes the disclosure of the consolidation to describe the significant judgments and assumptions made in determining whether a variable interest held by the entity requires the variable interest entity to be consolidated and (or) disclose information about its involvement with the variable interest entity; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; and the significant factors considered and judgments made in determining that the power to direct the activities that significantly impact the economic performance of the variable interest entity are shared (as defined). Fair Value Disclosures [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Nonrecurring Fair Value, Measurements, Nonrecurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [Member] Mortgage Loans on Real Estate, Loan Type [Axis] Mortgage Loans on Real Estate, Loan Type [Axis] Mortgage Loans on Real Estate, Loan Type [Domain] Mortgage Loans on Real Estate, Loan Type [Domain] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Other noninterest income Interest Income [Member] Provision for loan losses Provision for Loan, Lease, and Other Losses [Member] The gain or loss associated with impaired loans, which is included in the provision for loan losses on the income statement. 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] Loans held-for-sale Loans Held-for-sale, Fair Value Disclosure Impaired loans held-for-investment Impaired Financing Receivable, Fair Value Disclosure 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 impaired financing receivable which may include impaired mortgage loans held for investment, impaired finance receivables held for investment, or any other impaired loans which are due the Company as of the balance sheet date. Repossessed assets Real Estate Acquired Through Foreclosure Total assets at fair value Assets, Fair Value Disclosure Fair value losses on loans Fair Value Gain (Loss) on Loans and Leases This amount represents the amount of gain (loss) recognized on impaired loans, still held as of the reporting date and measured at fair value on a nonrecurring basis. Fair value losses on repossessed assets Gain (Loss) on Foreclosed Assets This represents the amount of gain (loss) recognized on foreclosed assets, still held as of the reporting date, measured at fair value on a nonrecurring basis. Net gain (loss) on loan sales Gain (Loss) on Sales of Loans, Net Receivables [Abstract] Schedule of Troubled Debt Restructurings [Table] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Performing Performing Financial Instruments [Member] Nonperforming Nonperforming Financial Instruments [Member] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Consumer loans Consumer Portfolio Segment [Member] Commercial loans Commercial Portfolio Segment [Member] Class of Financing Receivable [Axis] Class of Financing Receivable, Type [Axis] Class of Financing Receivable [Domain] Class of Financing Receivable, Type [Domain] Residential first mortgage Home equity Home Equity Loan [Member] Commercial and industrial Commercial and Industrial Loans [Member] Portfolio segment of the company's total financing receivables related to commercial and industrial loans, which includes lines of credit to small or middle market businesses for use in normal business operations to finance working capital needs, equipment purchases and expansion projects. Troubled Debt Restructurings [Line Items] Financing Receivable, Modifications [Line Items] TDR Balance Financing Receivable, Modifications, Recorded Investment Allowance for loan losses on TDR loans Allowance for Credit Losses, Change in Method of Calculating Impairment TDR loans under fair value option Fair Value Option, Loans Held for Investment The TDR loans held-for-investment carried under the fair value option method. Loans Held-for-Investment Financing Receivables [Text Block] Investments, Debt and Equity Securities [Abstract] Schedule of Trading and Available-for-sale Securities Schedule of Trading and Available-for-sale Securities [Table Text Block] The table text block of the schedule of trading and available-for-sale securities. Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] Schedule of Available-for-sale Securities, by Contractual Maturity Date Investments Classified by Contractual Maturity Date [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Legal Proceedings, Contingencies and Commitments Commitments and Contingencies Disclosure [Text Block] Loans and Leases Receivable Disclosure [Abstract] Loans with Government Guarantees Loans Repurchased with Government Guarantees Disclosure [Text Block] The disclosure for the loans repurchased that are the result of exercising the unilateral option to repurchase certain loans in Ginnie Mae pools. Class of Warrant or Right [Table] Class of Warrant or Right [Table] Types of Investors [Axis] Types of Investors [Axis] The type of investor in Series C Preferred Stock and Warrants. Types of Investors [Domain] Types of Investors [Domain] The type of investor in Series C Preferred Stock and Warrants. May Investors May Investors [Member] The number of investors related to the full satisfaction of the entity's obligations under anti-dilution provisions applicable to certain investors in the May 2008 private placement capital raise. Troubled Asset Relief Program Troubled Asset Relief Program [Member] Troubled Asset Relief Program [Member] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Common Stock Common Stock [Member] Preferred Stock Preferred Stock [Member] Class of Warrant or Right [Line Items] Class of Warrant or Right [Line Items] Warrants exercised (in shares) Class of Warrant or Right, Exercised The number of warrants or rights exercised by the investors as a result of the full satisfaction of the obligations under anti-dilution provisions applicable to certain investors in the May 2008 private placement capital raise. Shares issued (in shares) Shares, Issued Warrants outstanding (in shares) Class of Warrant or Right, Outstanding Liability from warrants Warrants and Rights Outstanding Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Number of shares auctioned by warrants Class of Warrant or Right, Number of Securities Called by Warrants or Rights Warrants exercised (usd per share) Class of Warrant or Right, Exercise Price of Warrants or Rights 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] US government-sponsored enterprises debt securities US Government-sponsored Enterprises Debt Securities [Member] Agency - Commercial Commercial Mortgage Backed Securities [Member] Agency - Residential Agency Securities [Member] Municipal obligations Municipal Bonds [Member] Corporate debt obligations Corporate Debt Securities [Member] Debt Security [Axis] Debt Security [Axis] Major Types of Debt Securities [Domain] Major Types of Debt Securities [Domain] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Purchase of investment securities available-for-sale Payments to Acquire Available-for-sale Securities Sales of AFS securities (less than) Available-for-sale Securities, Sold at Par Held-to-maturity securities transferred to AFS Held-to-maturity Securities, Transferred Security During the Period, at Carrying Value Held-to-maturity Securities, Transferred Security During the Period, at Carrying Value Purchase of investment securities HTM Payments to Acquire Held-to-maturity Securities Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Fair Value Available-for-sale Securities Debt Securities, Continuous Unrealized Loss Position, Fair Value Available-for-sale Securities Debt Securities, Continuous Unrealized Loss Position, Fair Value Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Number of Securities Available-for-sale, Debt Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year Available-for-sale, Debt Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Unrealized Loss Available-for-sale Debt Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Available-for-sale Debt Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Available-for-Sale Securities, Unrealized Loss Position with Duration Under 12 Months, Fair Value Available-for-sale Debt Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Available-for-sale Debt Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Available-for-Sale Securities, Unrealized Loss Position with Duration Under 12 Months, Unrealized Loss Available-for-sale, Debt Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year Available-for-sale, Debt Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year Available-for-sale Debt Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Available-for-sale Debt Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Available-for-sale Debt Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Held-to-maturity Securities, Unrealized Loss Position with Duration 12 Months and Over, Fair Value Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Held-to-maturity Securities, Unrealized Loss Position with Duration 12 Months and Over, Number of Positions Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year Held-to-maturity Securities, Unrealized Loss Position with Duration 12 Months or Over, Unrealized Loss Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Held-to-maturity Securities, Unrealized Loss Position with Duration Under 12 Months, Fair Value Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Held-to-maturity Securities, Unrealized Loss Position with Duration Under 12 Months, Number of Positions Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year Held-to-maturity Securities, Unrealized Loss Position with Duration Under 12 Months, Unrealized Loss Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Available-for-sale Securities Pledged as Collateral Available-for-sale Securities Pledged as Collateral Schedule of Impaired Loans [Table] Schedule of Impaired Financing Receivable [Table] Consumer loans Consumer Loan [Member] Commercial loans Commercial Loan [Member] Impaired Loans Financing Receivable, Impaired [Line Items] With no related allowance recorded, recorded investment Impaired Financing Receivable, with No Related Allowance, Recorded Investment With no related allowance recorded, unpaid principal balance Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance With an allowance recorded, recorded investment Impaired Financing Receivable, with Related Allowance, Recorded Investment With an allowance recorded, unpaid principal balance Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance With an allowance recorded, related allowance Impaired Financing Receivable, Related Allowance Total recorded investment Impaired Financing Receivable, Recorded Investment Total unpaid principal balance Impaired Financing Receivable, Unpaid Principal Balance Average Recorded Investment Impaired Financing Receivable, Average Recorded Investment Interest Income Recognized Impaired Financing Receivable, Interest Income, Cash Basis Method Schedule of Federal Home Loan Bank Advances, by Branch of FHLB Bank [Table] Schedule of Federal Home Loan Bank Advances, by Branch of FHLB Bank [Table] Short-term adjustable rate Adjustable Rate [Member] Federal home loan bank advance where the rate is adjusted, moving higher or lower according to changes in a specified reference rate. Short-term debt Short-term Debt [Member] Long-term LIBOR adjustable advances Long-term fixed rate advances Long Term Fixed Rate [Member] Federal home loan bank advances in which the long term fixed rate and the amount of each payment remain constant throughout the life of the advance. Short-term Debt, Type [Axis] Short-term Debt, Type [Axis] Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] Short term debt FHLB advances and other Long-term Federal Home Loan Bank Advances, Current Federal Home Loan Bank Advances, Rate (as a percent) Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End Current portion of fixed rate advances Long-term Federal Home Loan Bank Advances Federal Home Loan Bank Advances Advances from Federal Home Loan Banks Income Tax Disclosure [Abstract] Schedule of Components of Income Tax Provision (Benefit) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Borrowings Debt Disclosure [Text Block] Schedule of FHLB Advances, by Interest Rate Type Schedule of Federal Home Loan Bank, Advances, by Interest Rate Type [Table Text Block] Tabular disclosure of advances by federal home loan bank by interest rate type. Schedule of FHLB Advances, Disclosures Schedule of Federal Home Loan Bank, Advances, Disclosures [Table Text Block] Tabular disclosure of general disclosure items of advances by federal home loan bank. Schedule of FHLB, Advances, Maturity Summary Schedule of Federal Home Loan Bank, Advances, Maturity Summary [Table Text Block] Tabular disclosure of federal home loan bank advances by maturity dates. Schedule of Long-Term Debt Instruments Schedule of Long-term Debt Instruments [Table Text Block] Statement of Cash Flows [Abstract] Operating Activities Net Cash Provided by (Used in) Operating Activities [Abstract] Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities Investing Activities Net Cash Provided by (Used in) Investing Activities [Abstract] Proceeds from sale of AFS securities including loans that have been securitized Proceeds from Sale of Available-for-sale Securities, Debt Collection of principal on investment securities AFS Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Purchase of investment securities AFS and other Collection of principal on investment securities HTM Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities Proceeds received from the sale of LHFI Payments for (Proceeds from) Other Loans and Leases Net origination, purchase, and principal repayments of LHFI Payments for (Proceeds from) Loans and Leases Net purchase of FHLB stock Payments for (Proceeds from) Federal Home Loan Bank Stock Acquisition of premises and equipment, net of proceeds Payments for (Proceeds from) Productive Assets Proceeds from the sale of MSRs Proceeds from Sale of Mortgage Servicing Rights (MSR) Other, net Payments for (Proceeds from) Other Investing Activities Net cash provided by investing activities Net Cash Provided by (Used in) Investing Activities Financing Activities Net Cash Provided by (Used in) Financing Activities [Abstract] Net change in deposit accounts Increase (Decrease) in Deposits Net change in short-term FHLB borrowings and other short-term debt Proceeds from (Repayments of) Short-term Debt, Maturing in Three Months or Less Proceeds from increases in FHLB long-term advances and other debt Increase (Decrease) in Loans from Federal Home Loan Banks Repayment of FHLB long-term advances Repayments of Federal Home Loan Bank Borrowings Net receipt of payments of loans serviced for others Receipt Disbursement of Loans Serviced Financing Activities The net receipt (disbursement) in cash during the period due to payments (principal and interest) collected on behalf of loans serviced for others. Net receipt of escrow payments Receipt Disbursement of Escrow Payments Financing Activities The net receipt (disbursement) in cash during the period due to escrow payments collected on behalf of others for payments to various taxing authorities. Other Proceeds from (Payments for) Other Financing Activities Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Net increase in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Beginning cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Ending cash, cash equivalents and restricted cash Supplemental disclosure of cash flow information Supplemental Cash Flow Information [Abstract] Non-cash reclassification of investment securities HTM to AFS Held-do-maturity Securities, Transfers to Available-For-Sale Held-do-maturity Securities, Transfers to Available-For-Sale Non-cash reclassification of loans originated LHFI to LHFS Transfer of Portfolio Loans and Leases to Held-for-sale Non-cash reclassification of LHFS to AFS securities Transfer of loans held-for-sale to investment securities Value of loans held-for-sale transferred to investment securities available-for-sale in a noncash transaction. MSRs resulting from sale or securitization of loans Mortgage servicing rights resulting from sale or securitization of loans Value of mortgage servicing rights resulting from the sale or securitization of mortgage loans in noncash transactions. Operating section supplemental disclosures Additional Cash Flow Elements, Operating Activities [Abstract] Cash proceeds from sales of LHFS Proceeds from Sale of Loans Held-for-sale Origination, premium paid and purchase of LHFS, net of principal repayments Payments for Origination and Purchases of Loans Held-for-sale Investment Securities Available-for-Sale, Amortized Cost Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] 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 10 years, amortized cost Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis Due after 10 years, amortized cost Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Amortized Cost Available-for-sale Debt Securities, Amortized Cost Basis Investment Securities Available-for-Sale, Estimated Fair Value Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] 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 10 years, fair value Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value Due after 10 years, fair value Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value Fair Value Available-for-sale Securities Investment Securities Available-for-Sale, Weighted-Average Yield Available-for-sale Securities, Maturities, Weighted Average Yield [Abstract] Available-for-sale Securities, Maturities, Weighted Average Yield [Abstract] Due after one year through five years, weighted average yield (as a percent) Available-For-Sale Securities, Debt Maturities, Year Two Through Five, Weighted Average Yield Available-for-sale Securities, Debt Maturities, Year Two Through Five, Weighted Average Yield Due after five years through 10 years, weighted average yield (as a percent) Available-For-Sale Securities, Debt Maturities, Year Six Through Ten, Weighted Average Yield Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Weighted Average Yield Due after 10 years, weighted average yield (as a percent) Available-For-Sale Securities, Debt Maturities, After Ten Years, Weighted Average Yield Available-for-sale Securities, Debt Maturities, after Ten Years, Weighted Average Yield Investment Securities Held-to-maturity, Amortized cost Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract] Due after one year through five years, amortized cost Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount Due after five years through 10 years, amortized cost Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount Due after 10 years, amortized cost Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount Amortized Cost Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis Investment Securities Held-to-maturity, Estimated Fair Value Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Fair Value [Abstract] Due after one year through five years, fair value Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Fair Value Due after five years through 10 years, fair value Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value Due after 10 years, fair value Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value Fair Value Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Fair Value Investment Securities Held-to-maturity, Weighted-Average Yield Held-to-maturity Securities, Maturities, Weighted Average Yield [Abstract] [Abstract] Held-to-maturity Securities, Maturities, Weighted Average Yield [Abstract] [Abstract] Due after one year through five years, weighted average yield (as a percent) Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Weighted Average Yield Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Weighted Average Yield Due after five years through 10 years, weighted average yield (as a percent) Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Weighted Average Yield Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Weighted Average Yield Due after 10 years, weighted average yield (as a percent) Held-to-maturity Securities, Debt Maturities, After Ten Years, Weighted Average Yield Held-to-maturity Securities, Debt Maturities, After Ten Years, Weighted Average Yield Recurring Fair Value, Measurements, Recurring [Member] Level 1 Fair Value, Inputs, Level 1 [Member] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Total Fair Value Estimate of Fair Value Measurement [Member] Mortgage Loans on Real Estate, Description, Loan Category [Axis] Mortgage Loans on Real Estate, Description, Loan Category [Axis] Mortgage Loans on Real Estate, Loan Category [Domain] Mortgage Loans on Real Estate, Loan Category [Domain] Rate lock commitments Interest Rate Lock Commitments [Member] Interest rate swap on FHLB advances Mortgage-backed securities forwards Mortgage-backed Securities, US Government Agencies [Member] The category includes U.S. government sponsored agencies with underlying mortgage-backed products. Interest rate swaps and swaptions Interest rate swaps Contingent consideration Contingent Consideration [Member] Contingent Consideration [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Assets, Fair Value Disclosure [Abstract] Assets, Fair Value Disclosure [Abstract] Investment securities available-for-sale Available-for-sale Securities, Debt Securities Loans held-for-sale, fair value Loans held-for-investment Loans Receivable, Fair Value Disclosure Mortgage servicing rights Total assets at fair value Total assets at fair value Liabilities, Fair Value Disclosure [Abstract] Liabilities, Fair Value Disclosure [Abstract] Derivative liabilities DOJ litigation settlement Litigation Settlement, Fair Value Disclosure This element represents the fair value portion of the litigation settlement reported on the balance sheet at period end. Contingent consideration Business Combination, Contingent Consideration, Liability Total liabilities at fair value Financial and Nonfinancial Liabilities, Fair Value Disclosure Schedule of Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Investment securities Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] Cash Flow Hedges Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated other comprehensive income (loss) AOCI Attributable to Parent, Net of Tax [Roll Forward] Beginning balance Stockholders' Equity Attributable to Parent Unrealized gain OCI, before Reclassifications, before Tax, Attributable to Parent Less: Tax (benefit) provision OCI, before Reclassifications, Tax Expense (Benefit), Attributable to Parent OCI, before Reclassifications, Tax Expense (Benefit), Attributable to Parent Net unrealized loss, net of tax OCI, before Reclassifications, Net of Tax, Attributable to Parent Reclassification out of AOCI Reclassification from AOCI, Current Period, before Tax, Attributable to Parent Less: Tax provision Reclassification from AOCI, Current Period, Tax Expense Benefit, Attributable to Parent Reclassification from AOCI, Current Period, Tax Expense Benefit, Attributable to Parent Reclassifications out of AOCI Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Other comprehensive income (loss), net of tax Ending balance Regulatory Capital Requirements [Abstract] Regulatory Matters Regulatory Capital Requirements under Banking Regulations [Text Block] Accounting Policies [Abstract] Recently Issued Accounting Pronouncements Description of New Accounting Pronouncements Not yet Adopted [Text Block] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Carrying Value Reported Value Measurement [Member] Estimated Fair Value Deposit, by Type [Axis] Deposit, by Type [Axis] This table discloses the deposits by type of class. Deposits, by Type [Domain] Deposits, by Type [Domain] This disclosure of the deposits by type of class. Demand deposits and savings accounts Demand Deposits and Savings Accounts [Member] The total demand and savings deposits held by the bank for the account holder. Certificates of deposit Certificates of Deposit [Member] Wholesale deposits Wholesale Deposits [Member] Wholesale Deposits [Member] Government deposits Government Accounts [Member] The total government account deposits held by the bank for the account holder. Custodial deposits Company Controlled Deposits [Member] The total company controlled deposits held by the bank for the account holder. Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Assets Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Investment securities available-for-sale Investment securities held-to-maturity Held-to-maturity Securities, Fair Value Loans with government guarantees Loans Repurchased with Government Guarantees, Fair Value Disclosure 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 the amount of repurchased asset that are the result of exercising the unilateral option to repurchase certain loans in Ginnie Mae pools. Mortgage servicing rights Federal Home Loan Bank stock Investment in Federal Home Loan Bank Stock, Fair Value Disclosure Bank owned life insurance Bank Owned Life Insurance, Fair Value Disclosure Bank Owned Life Insurance, Fair Value Disclosure Other assets, foreclosure claims Other Assets, Fair Value Disclosure Derivative financial instruments, assets Liabilities Financial Liabilities Fair Value Disclosure [Abstract] Deposits Deposits, Fair Value Disclosure Federal Home Loan Bank advances Federal Home Loan Bank Borrowings, Fair Value Disclosure Long-term debt Long-term Debt, Fair Value DOJ litigation settlement Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Derivative financial instruments, liabilities Receivables Held-for-sale [Abstract] Loans Held-for-Sale Loans Held-for-sale Disclosure [Text Block] The disclosure for loans that are intended to be sold into the secondary market on a whole loan basis or by securitizing the loans into securities. Statement of Financial Position [Abstract] Assets Assets [Abstract] Cash Cash and Due from Banks Interest-earning deposits Interest-bearing Deposits in Banks and Other Financial Institutions Total cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Investment securities available-for-sale Investment securities held-to-maturity Held-to-maturity Securities Loans held-for-sale ($4,725 and $4,300 measured at fair value, respectively) Loans Receivable Held-for-sale, Net, Not Part of Disposal Group Loans held-for-investment ($12 and $12 measured at fair value, respectively) Loans and Leases Receivable, Net of Deferred Income Loans with government guarantees Loans Repurchased With Government Guarantees The amount of repurchased asset that are the result of exercising the unilateral option to repurchase certain loans in Ginnie Mae pools. Less: allowance for loan losses Loans and Leases Receivable, Allowance Total loans held-for-investment and loans with government guarantees, net Loans and Leases Receivable, Net Amount Net deferred tax asset Deferred Tax Assets, Net Federal Home Loan Bank stock Federal Home Loan Bank Stock Premises and equipment, net Property, Plant and Equipment, Net Goodwill and intangible assets Intangible Assets, Net (Including Goodwill) Other assets Other Assets Total assets Assets Liabilities and Stockholders’ Equity Liabilities and Equity [Abstract] Noninterest bearing deposits Noninterest-bearing Deposit Liabilities Interest bearing deposits Interest-bearing Deposit Liabilities Total deposits Deposits Short-term Federal Home Loan Bank advances Short-term Debt Long-term Federal Home Loan Bank advances Other long-term debt Other liabilities ($60 and $60 measured at fair value, respectively) Other Liabilities Total liabilities Liabilities Stockholders’ Equity Stockholders' Equity Attributable to Parent [Abstract] Common stock $0.01 par value, 80,000,000 and 80,000,000 shares authorized; 57,399,993 and 57,321,228 shares issued and outstanding, respectively Common Stock, Value, Outstanding Additional paid in capital Additional Paid in Capital Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated deficit Retained Earnings (Accumulated Deficit) Total stockholders’ equity Total liabilities and stockholders’ equity Liabilities and Equity Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash Flow Hedge Cash Flow Hedging [Member] Fair Value Hedging Fair Value Hedging [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other assets Other Assets [Member] Other liabilities Other Liabilities [Member] Derivative asset, Notional Amount Derivative Asset, Notional Amount Derivative asset, Fair Value Derivative liability, Notional Amount Derivative Liability, Notional Amount Derivative liability, Fair Value Segment Reporting [Abstract] Segment Information Segment Reporting Disclosure [Text Block] Schedule of Loans Held-for-investment, Credit Quality Indicator [Table] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Pass Pass [Member] Watch Watch [Member] A category of financing receivables considered to have potential weaknesses that deserve management's close attention. If left uncorrected, those potential weaknesses may result in a deterioration of the repayment prospects for the asset or of the creditor's position at some future date. Special Mention Special Mention [Member] Substandard Substandard [Member] Other Consumer Consumer Other Financing Receivable1 [Member] Consumer Other Financing Receivable1 [Member] Commercial real estate Commercial real estate loans [Member] Portfolio segment of the company's total financing receivables related to commercial real estate loans that are collateralized by real estate properties intended to be income-producing in the normal course of business. Warehouse lending Warehouse Agreement Borrowings [Member] Loans held-for-investment [Line Items] Financing Receivable, Recorded Investment [Line Items] Loans held-for-investment Financing Receivable, Gross Total loans Merchant fee income (less than) Merchant Fee income Merchant Fee income HTM securities transferred to AFS Held-to-maturity Securities, Transferred Security, at Carrying Value Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Weighted Average Shares Weighted Average Number of Shares Outstanding, Basic [Abstract] Weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Effect of dilutive securities Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract] May Investor Warrants (in shares) Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants Stock-based awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted average diluted common shares (in shares) Weighted Average Number of Shares Outstanding, Diluted Earnings per common share Earnings Per Share, Basic [Abstract] Basic earnings per common share (in usd per share) Earnings Per Share, Basic Effect of dilutive securities Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] May Investors Warrants (in usd per share) Incremental Common Shares Attributable to Call Options and Warrants, Per Share Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of warrants. Stock-based awards (in usd per share) Incremental Common Shares Attributable to Share-based Payment Arrangements, Per Share Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Diluted earnings per common share (in usd per share) Earnings Per Share, Diluted 2018 Federal Home Loan Bank, Advances, Maturities Summary, Due in Remainder of Fiscal Year 2019 Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Two 2020 Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Three 2021 Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Four Thereafter Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Five Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Mortgage Loans on Real Estate, Description, Loan Category [Axis] Receivable Type [Axis] Receivable Type [Axis] Receivable [Domain] Receivable [Domain] Loans held-for-investment Loans Receivable [Member] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Loans greater than 90 days past due accounted for under the fair value option Fair Value, Option, Loans Held as Assets, 90 Days or More Past Due Charge-offs related to sale of loans Financing Receivable, Significant Sales Net gain on sale of assets (less than) Gain (Loss) on Disposition of Other Assets Significant purchases Financing Receivable, Significant Purchases Loans pledged as collateral Loans Pledged as Collateral Investment Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Credit Quality Concentration Risk, Credit Risk, Policy [Policy Text Block] Derivative Financial Instruments Derivatives, Policy [Policy Text Block] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Flagstar Bank Subsidiaries [Member] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Tangible capital (to tangible assets), Actual, Amount Tangible Capital Tangible capital (to tangible assets), Actual, Ratio Tangible Capital to Tangible Assets Tier 1 capital (to adjusted tangible assets), Actual, Amount Tier One Leverage Capital Tier 1 capital (to adjusted tangible assets), Actual, Ratio (as a percent) Tier One Leverage Capital to Average Assets Tier 1 capital (to adjusted tangible assets), For Capital Adequacy Purposes, Amount Tier One Leverage Capital Required for Capital Adequacy Tier 1 capital (to adjusted tangible assets), For Required Adequacy Purposes, Ratio (as a percent) Tier One Leverage Capital Required for Capital Adequacy to Average Assets Tier 1 capital (to adjusted tangible assets), Well Capitalized Under Prompt Corrective Action Provisions, Amount Tier One Leverage Capital Required to be Well Capitalized Tier 1 capital (to adjusted tangible assets), Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent) Tier One Leverage Capital Required to be Well Capitalized to Average Assets Common equity Tier 1 capital (to RWA), Actual, Amount Tier One Common Equity Tier 1 Common Equity as defined in the regulations. Common equity Tier 1 capital (to RWA), Actual, Ratio (as a percent) Tier One Common Equity to Risk Weighted Assets Tier One Common Equity divided by Risk Weighted Assets as defined in the regulations. Common equity Tier 1 capital (to RWA), Required for Capital Adequacy, Amount Tier One Common Equity Required for Capital Adequacy The minimum amount of Tier 1 Common Equity required for capital adequacy purposes under the regulatory framework for prompt corrective actions. Common equity Tier 1 capital (to RWA), Required for Capital Adequacy, Ratio (as a percent) Tier One Common Equity Required for Capital Adequacy to Risk Weighted Assets The minimum amount of Tier One Common Equity Required for Capital Adequacy (Tier 1 Common Equity divided by Risk Weighted Assets) as defined in the regulations. Common equity Tier 1 capital (to RWA), Required to Be Well Capitalized, Amount Tier One Common Equity Required to Be Well Capitalized The amount of Tier 1 Common Equity required to be well capitalized under the regulatory framework for prompt corrective action. Common equity Tier 1 capital (to RWA), Required to Be Well Capitalized, Ratio (as a percent) Tier One Common Equity Required to Be Well Capitalized to Risk Weighted Assets The amount of Tier 1 Common Equity required to be well capitalized (Tier 1 Common Equity divided by risk weighted assets) as defined in the regulatory framework for prompt corrective action. Tier 1 capital (to risk-weighted assets), Actual, Amount Tier One Risk Based Capital Tier 1 capital (to risk-weighted assets), Actual, Ratio (as a percent) Tier One Risk Based Capital to Risk Weighted Assets Tier 1 capital (to risk-weighted assets), For Capital Adequacy Purposes, Amount Tier One Risk Based Capital Required for Capital Adequacy Tier 1 capital (to risk-weighted assets), For Capital Adequacy Purposes, Ratio (as a percent) Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets Tier 1 capital (to risk-weighted assets), Well Capitalized Under Prompt Corrective Action Provisions, Amount Tier One Risk Based Capital Required to be Well Capitalized Tier 1 capital (to risk-weighted assets), Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent) Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets Total capital (to risk-weighted assets), Actual, Amount Capital Total capital (to risk-weighted assets), Actual, Ratio (as a percent) Capital to Risk Weighted Assets Total capital (to risk-weighted assets), For Capital Adequacy Purposes, Amount Capital Required for Capital Adequacy Total capital (to risk-weighted assets), For Capital Adequacy Purposes, Ratio (as a percent) Capital Required for Capital Adequacy to Risk Weighted Assets Total capital (to risk-weighted assets), Well Capitalized Under Prompt Corrective Action Provisions, Amount Capital Required to be Well Capitalized Total capital (to risk-weighted assets), Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent) Capital Required to be Well Capitalized to Risk Weighted Assets Summary of Contractual Amount of Significant Commitments Other Commitments [Table Text Block] Schedule of Loans Held-for-investment Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Allowance for Loan Losses Allowance for Credit Losses on Financing Receivables [Table Text Block] Past Due Loans Past Due Financing Receivables [Table Text Block] Troubled Debt Restructurings Troubled Debt Restructurings on Financing Receivables [Table Text Block] Impaired Loans Impaired Financing Receivables [Table Text Block] Loan Credit Quality Indicators Financing Receivable Credit Quality Indicators [Table Text Block] Fair Value Inputs, Assets, Quantitative Information [Table] Fair Value Inputs, Assets, Quantitative Information [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Weighted Average Weighted Average [Member] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] Residential mortgage servicing rights capitalized Residential Mortgage Servicing Rights Capitalized [Member] Fair value of residential mortgage servicing rights that are capitalized. Fair Value Inputs, Assets, Quantitative Information [Line Items] Fair Value Inputs, Assets, Quantitative Information [Line Items] Weighted average life Fair Value Assumptions, Expected Term Debt instrument, term (in years) Debt Instrument, Term Repossessed assets and associated claims Other Real Estate, Foreclosed Assets, and Repossessed Assets Three Month LIBOR Three Month LIBOR [Member] London interbank market interest rate for three months at which the bank borrows funds from other banks. Treasury Rate Treasury Rate [Member] Treasury Rate [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Senior Note Maturing 2021 Senior Notes [Member] 6.125% senior notes FHLB line of credit, maximum amount available Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available FHLB line of credit, available collateral amount Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds FHLB advances, line of credit Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances Debt instrument, variable interest rate, term Debt Instrument, Variable Interest Rate, Term Percentage points added to the reference rate to compute the variable rate on the debt instrument. FHLB Advances, Prepayment Notification Period (in months) Federal Home Loan Bank, Advances, Branch of FHLB Bank, Prepayment Notification Period Federal Home Loan Bank, Advances, Branch of FHLB Bank, Prepayment Notification Period FHLB Advances, Initial Lockout Period (in months) Federal Home Loan Bank, Advances, Branch of FHLB Bank, Initial Lockout Period Federal Home Loan Bank, Advances, Branch of FHLB Bank, Initial Lockout Period Derivative instrument cash received Derivative, Cash Received on Hedge Debt instrument face amount Debt Instrument, Face Amount Debt instrument redemption rate Debt Instrument, Redemption Price, Percentage Payment of interest on trust preferred securities Payment of Interest on Trust Preferred Securities Payment of Interest on Trust Preferred Securities Servicing Assets and Servicing Liabilities Risk [Axis] Servicing Assets and Servicing Liabilities Risk [Axis] Risks Inherent in Servicing Assets and Servicing Liabilities, Type [Domain] Risks Inherent in Servicing Assets and Servicing Liabilities, Type [Domain] Mortgage servicing rights Residential Mortgage Servicing Rights [Member] Derivative assets or liabilities which hedge the risk of overall changes in fair value of MSRs through the use of various derivatives including purchases of forward contracts on securities of Fannie Mae and Freddie Mac, the purchase/sale of U.S. Treasury futures contracts and the purchase/sale of euro dollar future contracts. These are accounted for as non-designated hedges. Option adjusted spread, Actual (as a percent) Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of Other than 10 or 20 Percent Adverse Change in Option Adjusted Spread, Percent Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of Other than 10 or 20 Percent Adverse Change in Option Adjusted Spread, Percent Option adjusted spread, Decline in fair value due to 10% adverse change Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Option Adjusted Spread Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Option Adjusted Spread Option adjusted spread, Decline in fair value due to 20% adverse change Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Option Adjusted Spread Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Option Adjusted Spread Constant prepayment rate, Actual (as a percent) Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of Other than 10 or 20 Percent Adverse Change in Prepayment Speed, Percent Constant prepayment rate, Decline in fair value due to 10% adverse change Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Prepayment Speed Constant prepayment rate, Decline in fair value due to 20% adverse change Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Prepayment Speed Weighted average annual cost to service per loan, Actual (in usd per loan) Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of Other than 10 or 20 Percent Adverse Change in Other Assumption, Per Loan Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of Other than 10 or 20 Percent Adverse Change in Other Assumption, Per Loan Weighted average annual cost to service per loan, Decline in fair value due to 10% adverse change Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Other Assumption Weighted average annual cost to service per loan, Decline in fair value due to 20% adverse change Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Other Assumption Mortgage Servicing Rights Transfers and Servicing of Financial Assets [Text Block] Earnings Per Share Earnings Per Share [Text Block] Schedule of Share-based Compensation, Restricted Stock Units Award Activity Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Community Banking Community Banking segment [Member] The Community Banking operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment, may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. Mortgage Originations Mortgage Origination Segment [Member] An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment, may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. Mortgage Servicing Mortgage Servicing [Member] An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment, may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. Other Other Segments [Member] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Intersegment Eliminations Intersegment Eliminations [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Number of operating segments Number of Operating Segments Summary of Operations Summary of Operations [Abstract] Summary of Operations [Abstract] Net interest income Interest Income (Expense), Net Other noninterest income Noninterest Income, Other Operating Income Total net interest income and noninterest income Revenues (Provision) benefit for loan losses Provision for Loan, Lease, and Other Losses Compensation and benefits Employee Benefits and Share-based Compensation Other noninterest expense Other Noninterest Expense Total noninterest expense Noninterest Expense, Including Provision for Loan Losses Amount of the total non-interest expenses, including the provision for loan losses, asset resolution and other non-interest expense. Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Overhead allocations Overhead Allocation Overhead Allocation Provision for income taxes Income Tax Expense (Benefit) Net income Average balances Average Balance [Abstract] Average Balances [Abstract] Loans held-for-sale Average loans held-for-sale Amount of average loans held-for-sale attributed to the reportable segment Loans with government guarantees Average Loans With Government Guarantees The amount of loans that are the result of exercising the unilateral option to repurchase certain loans in Ginnie Mae pools. Loans held-for-investment Segment Reporting Information, Average Loans Held-for-Investment Amount of average loans held-for-investment attributed to the reportable segment. Total assets Average Assets Average Assets Deposits Segment Reporting Information, Average Deposits Amount of average deposits attributed to the reportable segment. Fair Value, Option, Quantitative Disclosures [Table] Fair Value, Option, Quantitative Disclosures [Table] Net gain on loan sales Gain (Loss) on Loan Sales [Member] The gain (loss) resulting from a sale of loans, including adjustments to record loans classified as held-for-sale. Loans held-for-sale Loans Held-for-sale [Member] Loans that are intended to be sold into the secondary market on a whole loan basis or by securitizing the loans into securities. Litigation settlement Litigation Settlement Liability [Member] This represents the litigation settlement liability associated with the DOJ settlement agreement. Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] Litigation settlement DOJ Agreement [Member] Agreement with the Department of Justice as a result of a litigation settlement. Fair Value, Option, Quantitative Disclosures [Line Items] Fair Value, Option, Quantitative Disclosures [Line Items] Changes in fair value, gain (loss) Fair Value, Option, Changes in Fair Value, Gain (Loss) Unpaid Principal Balance Fair Value, Option, Contractual Principal Outstanding, Assets This item represents aggregate unpaid principal balance of assets that have contractual principal amounts and for which the fair value option has been elected. Fair Value Fair Value Over / (Under) Unpaid Principal Balance Fair Value, Option, Loans Held as Assets, Aggregate Difference Fair Value, Option, Contractual Principal Outstanding, Liabilities Fair Value, Option, Contractual Principal Outstanding, Liabilities This item represents aggregate unpaid principal balance of liabilities that have contractual principal amounts and for which the fair value option has been elected. Long-term Debt, Fair Value Fair Value, Option, Aggregate Differences, Long-term Debt Instruments Fair Value, Option, Aggregate Differences, Long-term Debt Instruments Litigation settlement payment amount Litigation Settlement, Amount Awarded to Other Party Schedule of Allowance for Loan Losses [Table] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Allowance for Loan Losses [Line Items] Financing Receivable, Allowance for Credit Losses [Line Items] Allowance for Loan Losses [Roll Forward] Financing Receivable, Allowance for Credit Losses [Roll Forward] Beginning balance ALLL Financing Receivable, Allowance for Credit Losses Charge-offs Financing Receivable, Allowance for Credit Losses, Write-downs Recoveries Financing Receivable, Allowance for Credit Losses, Recovery Provision (benefit) Provision for Doubtful Accounts Ending balance ALLL Unobservable Input Reconciliation, Assets and Liabilities [Table] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] The table disclosure of the fair value of assets and liabilities measured on recurring basis, which discloses the unobservable inputs. Rate lock commitments Liability Class [Axis] Liability Class [Axis] Liability Class [Domain] Fair Value by Liability Class [Domain] DOJ litigation settlement Unobservable Input Reconciliation, Assets and Liabilities [Line Items] Unobservable Input Reconciliation, Assets and Liabilities [Line Items] Unobservable Input Reconciliation, Assets and Liabilities [Line Items] Assets, Unobservable Input Reconciliation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balance at Beginning of Period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Total Gains (Losses) Recorded in Earnings (1) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Purchases / Originations 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 Transfers In (Out) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net Balance at End of Period Liabilities, Unobservable Input Reconciliation [Roll Forward] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balance at Beginning of Period Total unrealized gains/(losses) recorded in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Purchases / Originations Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Transfers In (Out) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net Balance at End of Period Fair Value Measurements Fair Value Disclosures [Text Block] Assets Loans held-for-investment, fair value Other liabilities, fair value Other Liabilities, Fair Value Disclosure Stockholders' Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Common stock, par value (in usd 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 Residential first mortgage Residential first mortgage loans sub-serviced for others [Member] This represents residential first mortgage loans sub-serviced for others. Net return (loss) on mortgage servicing rights Net Return on Mortgage Servicing Asset [Member] Represents the net return on mortgage servicing asset. Net Loan Administration Income Net Loan Administration Income [Member] Represents the net loan administration income. Servicing fees, ancillary income and late fees Contractually Specified Servicing Fee, Late Fee, and Ancillary Fee Earned in Exchange for Servicing Financial Asset Changes in fair value Servicing Asset at Fair Value, Period Increase (Decrease) Net return (loss) on MSR derivatives Gain (Loss) on Hedging Activity Net transaction costs Servicing Asset at Fair Value, Net Transaction Costs The total amount of net transaction costs earned on loans serviced and subserviced for others during the period for which results of operations are presented. Total return included in net return on mortgage servicing rights Servicing Asset at Fair Value, Income, Amount The total amount of income earned on loans serviced and subserviced for others during the period for which results of operations are presented. Other servicing charges Other Servicing Charges Generated by Servicing Financial Assets, Amount The total amount of other servicing charges earned on loans serviced and subserviced for others during the period for which results of operations are presented. Total income on mortgage loans subserviced, included in loan administration Subservicing Asset at Fair Value, Income, Amount The amount of income earned from subservicing an asset at fair value. Loss Contingencies [Table] Loss Contingencies [Table] Mortgage loans interest-rate lock commitments Mortgages [Member] Warehouse loan commitments Warehouse Loan Commitments [Member] This amount represents warehouse loan commitments to extend credit. Commercial and industrial commitments Other commercial commitments Other Commercial Commitments [Member] Other commercial commitments to extend credit under a line of credit and secured by the commercial property. HELOC commitments Home Equity Line of Credit [Member] Other consumer commitments Other, Commitments to Extend Credit [Member] Other commitments to extend credit under a line of credit and secured by the borrower's property. Standby and commercial letters of credit Standby and Commercial Letters of Credit [Member] An irrevocable undertaking (typically by a financial institution) to guarantee payment of a specified financial obligation. Loss Contingencies Loss Contingencies [Line Items] Commitments to extend credit Unused Commitments to Extend Credit Individually evaluated Financing Receivable, Individually Evaluated for Impairment Collectively evaluated Financing Receivable, Collectively Evaluated for Impairment Total loans Individually evaluated Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Collectively evaluated Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Total allowance for loan losses Revenue, Initial Application Period Cumulative Effect Transition [Table] Revenue, Initial Application Period Cumulative Effect Transition [Table] Products and Services [Axis] Products and Services [Axis] Products and Services [Domain] Products and Services [Domain] Deposit account and other banking income Deposit Account and Other Banking Income [Member] Deposit Account and Other Banking Income [Member] Interchange fees Interchange Fees [Member] Interchange Fees [Member] Wealth management Wealth Management [Member] Wealth Management [Member] Revenue, Initial Application Period Cumulative Effect Transition Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Revenue Revenue from Contract with Customer, Excluding Assessed Tax Loans held-for-sale Loans held-for-sale, other Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Other Income Taxes Income Tax Disclosure [Text Block] Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Accumulated other comprehensive income, cash flow hedge 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] Reclassification out of accumulated other comprehensive income Reclassification out of Accumulated Other Comprehensive Income [Member] Interest income (expense) Interest Income (Expense) [Member] Interest Income (Expense) [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Effect of Fair Value Hedges on Results of Operations [Abstract] Effect of Fair Value Hedges on Results of Operations [Abstract] Hedged items Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Derivatives designated as hedging instruments Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments Amount of gain (loss) reclassified from AOCI into income Net gain (loss) recognized in income on derivative instruments Derivative, Gain (Loss) on Derivative, Net Schedule of Regulatory Capital Ratios Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] Schedule of New Accounting Pronouncements and Changes in Accounting Principles Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Revenue Disaggregation of Revenue [Table Text Block] Document and Entity Information [Abstract] Document and Entity Information. Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Number of Accounts Financing Receivable, Modifications, Number of Contracts Pre-Modification Unpaid Principal Balance Financing Receivable, Modifications, Pre-Modification Recorded Investment Post-Modification Unpaid Principal Balance Financing Receivable, Modifications, Post-Modification Recorded Investment Increase in Allowance at Modification Allowance for Loan and Lease Losses, Adjustments, Other Number of loans modified in previous 12 months that have defaulted Financing Receivable, Modifications, Subsequent Default, Number of Contracts Modifications subsequent to default Financing Receivable, Modifications, Subsequent Default, Recorded Investment Valuation Technique [Axis] Valuation Technique [Axis] Valuation Technique [Domain] Valuation Technique [Domain] Fair value of underlying collateral Fair Value of Underlying Collateral [Member] A valuation technique used in the fair value of underlying collateral. Repossessed assets Foreclosed Assets [Member] The real estate, land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement. Lower range Minimum [Member] Upper range Maximum [Member] Fair Value Inputs, Assets, Quantitative Information [Line Items] Loss severity (as a percent) Fair Value Inputs, Loss Severity Schedule of Segment Reporting Information, by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] DOJ Agreement Payment Terms [Axis] Payment Terms [Axis] The payment terms associated with legal litigation. Payment Terms [Domain] Payment Terms [Domain] The payment terms associated with a litigation settlement. Additional payments Subsequent Payments [Member] Additional payments contingent upon the occurrence of certain future events as a result of litigation settlement. Litigation Settlement, by Nature [Axis] Litigation Settlement, by Nature [Axis] Litigation Settlement, by Nature [Axis] Litigation Settlement, by Nature [Domain] Litigation Settlement, by Nature [Domain] [Domain] for Litigation Settlement, by Nature [Axis] Litigation settlement, initial payment Litigation Settlement, Initial Payment Litigation Settlement, Initial Payment Annual payments (up to) Litigation Settlement, Expense Tier 1 leverage capital ratio Business acquisition threshold Business Acquisition Threshold, Percent Business Acquisition Threshold, Percent Fair value option, discount rate Fair Value Inputs, Discount Rate Litigation settlement liability Litigation Settlement Liability This amount represents the litigation settlement liability reported on the balance sheet at period end relating to the DOJ settlement. Accrued reserve for contingent liabilities Loss Contingency Accrual Letter of credit, reserve amount Letter of Credit, Reserve, Amount The total amount of the reserve on letters of credit outstanding as of the reporting date. Fair Value Inputs, Assets and Liabilities, Quantitative Information [Table] Fair Value Inputs, Assets and Liabilities, Quantitative Information [Table] Schedule of the inputs used in the fair value measurement of assets and liabilities. This disclosure may include, but is not limited to, the fair value of the asset or liability, valuation technique used to measure fair value, the inputs used to measure fair value, the ranges of the inputs, and the weighted averages of the inputs. Discounted cash flows Discounted Cash Flow Method [Member] The valuation technique using the discounted cash flow method. Consensus pricing Consensus Pricing [Member] Consensus Pricing [Member] Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] [Line Items] Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] [Line Items] Fair value, Assets Fair value, Liabilities Fair Value Inputs [Abstract] Fair Value Inputs [Abstract] Discount rate (as a percent) Constant prepayment rate (as a percent) Fair Value Inputs, Prepayment Rate CDR rate (as a percent) Fair Value Inputs, Probability of Default Weighted average cost to service per loan Fair Value Inputs, Weighted Average Cost to Service per Loan The fair value unobservable input of weighted average cost to service per loan used in the fair value measurement of mortgage servicing rights. Origination pull-through rate (as a percent) Fair Value Inputs, Pull-through Rate The fair value unobservable input of the percentage that measures the dollar volume of loans delivered versus the dollar volume of loans committed for delivery. Asset growth rate (as a percent) Fair Value Inputs Asset Growth Rate Fair Value Inputs Asset Growth Rate Fair value input, beta Fair Value Input, Beta Fair Value Input, Beta Fair value inputs, equity volatility Fair Value Inputs, Equity Volatility Fair Value Inputs, Equity Volatility Transfers of assets or liabilities at fair value between fair value levels Fair Value, Assets and Liabilities, Transfers Between Fair Value Levels Amount of transfer of financial instrument classified as an asset into (out of) the levels within the fair value hierarchy. Other Liabilities Disclosure [Abstract] Restricted Stock Restricted Stock Units (RSUs) [Member] Shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Non-vested balance at beginning of period (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