Regulatory Capital Requirements [Abstract] Regulatory Matters Regulatory Capital Requirements under Banking Regulations [Text Block] Transfers and Servicing [Abstract] Schedule of Servicing Assets at Fair Value [Table] Schedule of Servicing Assets at Fair Value [Table] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] 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. Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Residential first mortgage Residential first mortgage loans sub-serviced for others [Member] This represents residential first mortgage loans sub-serviced for others. 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. Servicing Assets at Fair Value [Line Items] Servicing Assets at Fair Value [Line Items] Sub servicing/Servicing fees, ancillary income and late fees Contractually Specified Servicing Fees, Late Fees, and Ancillary Fees Earned in Exchange for Servicing Financial Assets Changes in fair value Servicing Asset at Fair Value, Period Increase (Decrease) (loss) gain 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 net return (loss) 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. 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), Derivatives Qualifying as Hedges, Net of 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 Investments, Debt and Equity Securities [Abstract] Investment Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [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 Payments to Acquire Available-for-sale Securities Collection of principal on investment securities HTM Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities Purchase of investment securities HTM and other Payments to Acquire 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 LFFI Payments for (Proceeds from) Loans and Leases Purchase of bank owned life insurance Payments to Acquire Life Insurance Policies 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 long term FHLB Advances Increase (Decrease) in Loans from Federal Home Loan Banks 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 (disbursement) 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. Net cash provided (used) by financing activities Net Cash Provided by (Used in) Financing Activities Net increase in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Beginning cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Ending cash and cash equivalents Supplemental disclosure of cash flow information Supplemental Cash Flow Information [Abstract] Non-cash reclassification of loans originated HFI to LHFS Transfer of Portfolio Loans and Leases to Held-for-sale Non-cash reclassification of mortgage loans HFS 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 Debt Disclosure [Abstract] 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] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] 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. Long-term LIBOR adjustable advances London Interbank Offered Rate (LIBOR) [Member] 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] Federal Home Loan Bank Advances, Rate (as a percent) Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End Short term debt FHLB advances and other Long-term Federal Home Loan Bank Advances, Current Current portion of fixed rate advances Long-term Federal Home Loan Bank Advances Federal Home Loan Bank Advances Advances from Federal Home Loan Banks Receivables [Abstract] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Class of Financing Receivable [Axis] Class of Financing Receivable, Type [Axis] Class of Financing Receivable [Domain] Class of Financing Receivable, Type [Domain] HELOC loans Home Equity Line of Credit [Member] Receivable Type [Axis] Receivable Type [Axis] Receivable [Domain] Receivable [Domain] Nonperforming Nonperforming Financial Instruments [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] Second mortgage Second Mortgage [Member] Residential first mortgage loans First Mortgage [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Loans held-for-investment Loans Receivable [Member] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Financing Receivable, Reclassification to Held-for-sale Financing Receivable, Reclassification to Held-for-sale Charge-offs related to sale of loans Financing Receivable, Significant Sales Net gain (loss) on sale of assets Gain (Loss) on Disposition of Other Assets Charge-offs Financing Receivable, Allowance for Credit Losses, Write-downs Unpaid principal balances Financing Receivable, Significant Purchases Loans Pledged as Collateral Loans Pledged as Collateral Unpaid principal balance Impaired Financing Receivable, Unpaid Principal Balance Statement of Financial Position [Abstract] Assets Assets [Abstract] Loans held-for-sale, fair value Loans Held-for-sale, Fair Value Disclosure Loans held-for-investment, fair value Loans Receivable, Fair Value Disclosure Liabilities and Stockholders’ Equity Liabilities and Equity [Abstract] Other liabilities, fair value Other Liabilities, Fair Value Disclosure Preferred Stock, Par or Stated Value Per Share Preferred Stock, Par or Stated Value Per Share Preferred Stock, Liquidation Preference Per Share Preferred Stock, Liquidation Preference Per Share Preferred Stock, Shares Authorized Preferred Stock, Shares Authorized Preferred Stock, Shares Issued Preferred Stock, Shares Issued Preferred Stock, Shares Outstanding Preferred Stock, Shares Outstanding 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 Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Accounting Policies [Abstract] Schedule of New Accounting Pronouncements and Changes in Accounting Principles Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Receivables Held-for-sale [Abstract] Financial Instruments Owned and Pledged as Collateral by Type [Axis] Financial Instruments Owned and Pledged as Collateral by Type [Axis] Financial Instruments Owned and Pledged as Collateral, Type [Domain] Financial Instruments Owned and Pledged as Collateral, Type [Domain] Consumer loans Consumer Loan [Member] Mortgage Loans on Real Estate, Description, Loan Category [Axis] 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. Loans held-for-sale Loans Receivable Held-for-sale, Net, Not Part of Disposal Group Net gain (loss) on loan sales Gain (Loss) on Sales of Loans, Net Loans held-for-sale, other Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Other Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 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 [Line Items] 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 Junior subordinated notes 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) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Investment securities Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] Cash Flow Hedges 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) AOCI Attributable to Parent, Net of Tax [Roll Forward] Beginning balance Stockholders' Equity Attributable to Parent Unrealized gain (loss) 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 (benefit) 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 Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Preferred Stock Preferred Stock [Member] Common Stock Common Stock [Member] Additional Paid in Capital Additional Paid-in Capital [Member] Retained Earnings (Accumulated Deficit) Retained Earnings [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance, shares Shares, Outstanding Total other comprehensive income (loss) Stock-based compensation, value Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Stock-based compensation, shares Stock Issued During Period, Shares, Share-based Compensation, Gross Warrant exercise Adjustments to Additional Paid in Capital, Warrant Exercised This element represents the adjustment to additional paid in capital during the period, that is, the amount related to the warrant exercised. Warrant exercise, shares Adjustments to Additional Paid in Capital, Warrant Exercised, Shares Adjustments to Additional Paid in Capital, Warrant Exercised, Shares Ending balance, shares Extinguishment of Debt [Axis] Extinguishment of Debt [Axis] Extinguishment of Debt, Type [Domain] Extinguishment of Debt, Type [Domain] Federal Home Loan Bank Advances Federal Home Loan Bank Advances [Member] 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] Payments made to FHLB Payments for Federal Home Loan Bank Advances 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 Cash received on hedge 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 Organization, Consolidation and Presentation of Financial Statements [Abstract] Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Earnings Per Share [Abstract] Schedule of Earnings (Loss) Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] 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] Recurring Fair Value, Measurements, Recurring [Member] 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] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Weighted Average Weighted Average [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] 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. FICO Score Long-term Debt, FICO Score Long-term Debt, FICO Score Loans and Leases Receivable Disclosure [Abstract] Debt instrument, term (in years) Debt Instrument, Term 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. Repossessed assets and associated claims Other Real Estate, Foreclosed Assets, and Repossessed Assets Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] 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] 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 Sales of AFS securities Available-for-sale Securities, Sold at Par Purchase of investment securities HTM Proceeds from sale of held-to-maturity securities Proceeds from Sale of Held-to-maturity Securities Reverse repurchase agreements Securities for Reverse Repurchase Agreements Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Fair Value Available-for-sale 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, 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 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 Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Available-for-Sale Securities, Unrealized Loss Position with Duration Under 12 Months, Number of Securities Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year Available-for-Sale Securities, Unrealized Loss Position with Duration Under 12 Months, Unrealized Loss Available-for-sale 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 Trading and Available-for-Sale Securities [Table] Schedule of Trading and Available-for-Sale Securities [Table] Tabular schedule of trading and available-for-sale securities. Corporate debt obligations Corporate Debt Securities [Member] Schedule of Trading and Available-for-sale Securities [Line Items] Schedule of Trading and Available-for-sale Securities [Line Items] Tabular schedule of trading and available-for-sale securities. Investment securities Available-for-sale Securities [Abstract] Amortized Cost Available-for-sale Securities, Amortized Cost Basis Gross Unrealized Gains Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Losses Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Fair Value Available-for-sale Securities Held-to-maturity Securities [Abstract] Held-to-maturity Securities [Abstract] Amortized Cost Held-to-maturity Securities Gross Unrealized Gains Held-to-maturity Securities, Accumulated Unrecognized Holding Gain Gross Unrealized Losses Held-to-maturity Securities, Accumulated Unrecognized Holding Loss Fair Value Held-to-maturity Securities, Fair Value Other than temporary impairments Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Securities Sold Segment Reporting [Abstract] Segment Information Segment Reporting Disclosure [Text Block] 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] Other assets Other Assets [Member] Other liabilities Other Liabilities [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] Futures Future [Member] Mortgage backed securities forwards Mortgage Backed Securities, Other [Member] Rate lock commitments Interest Rate Lock Commitments [Member] Interest rate swaps and swaptions Interest Rate Swaps and Swaptions [Member] Interest Rate Swaps and Swaptions [Member] Interest rate swaps Interest Rate Swap [Member] Derivative [Line Items] Derivative [Line Items] Derivative asset, Notional Amount Derivative Asset, Notional Amount Derivative asset, Fair Value Derivative Asset, Fair Value, Gross Asset Derivative liability, Notional Amount Derivative Liability, Notional Amount Derivative liability, Fair Value Derivative Liability, Fair Value, Gross Liability 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 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] Income Tax Disclosure [Abstract] Provision for income taxes Income Tax Expense (Benefit) Effective tax provision rate (as a percent) Effective Income Tax Rate Reconciliation, Percent Unrecognized tax benefits, recognition period (in months) Unrecognized Tax Benefits, Period Recognized The period in which the unrecognized tax benefits will result in an impact to the company. 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] 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. Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 3 Fair Value, Inputs, Level 3 [Member] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] Second mortgage loans Rate lock commitments Liability Class [Axis] Liability Class [Axis] Liability Class [Domain] Fair Value by Liability Class [Domain] DOJ litigation settlement Litigation Settlement Liability [Member] This represents the litigation settlement liability associated with the DOJ settlement agreement. 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 Unrealized Gains / (Losses) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Total Realized Gains / (Losses) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Realized Gain (Loss) Included in Earnings. Amount of gain (loss) recognized in the income statement for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing that are realized. Total unrealized gains/(losses) recorded in OCI Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) 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 Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Total unrealized gains/(losses) recorded in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Total realized gains/(losses) recorded in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Realized Gain (Loss) Included in Earnings Amount of gain (loss) recognized in the income statement for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing that are realized. Total unrealized gains/(losses) recorded in OCI Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) 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 Nonrecurring Fair Value, Measurements, Nonrecurring [Member] Level 2 Fair Value, Inputs, Level 2 [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] Interest income on loans 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. Loans held-for-sale 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 (less than for $1 million) 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. 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-backed securities forwards Mortgage-backed Securities, US Government Agencies [Member] The category includes U.S. government sponsored agencies with underlying mortgage-backed products. 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 Loans held-for-investment Mortgage servicing rights Servicing Asset at Fair Value, Amount Total derivative assets Derivative Asset Total assets at fair value Liabilities, Fair Value Disclosure [Abstract] Liabilities, Fair Value Disclosure [Abstract] Derivative liabilities Derivative Liability Warrant liabilities Warrant Liabilities, Fair Value Disclosure This element represents the warrant liabilities reported on the balance sheet at period end measured at fair value by the entity. 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. Total liabilities at fair value Financial and Nonfinancial Liabilities, Fair Value Disclosure Schedule of Loans 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 Greater Past Due Financing Receivables, Equal to Greater than 90 Days Past Due [Member] Residential first mortgage HELOC commitments Other Consumer Other Financing Receivable1 [Member] Consumer Other Financing Receivable1 [Member] Consumer loans Consumer Portfolio Segment [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. 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. Warehouse lending Warehouse Agreement Borrowings [Member] Commercial loans Commercial Portfolio Segment [Member] Loans Past Due [Line Items] Financing Receivable, Recorded Investment, Past Due [Line Items] Loans, Aging [Abstract] Financing Receivable, Recorded Investment, Aging [Abstract] Total Past Due Financing Receivable, Recorded Investment, Past Due Current Financing Receivable, Recorded Investment, Current Total Investment Loans Loans and Leases Receivable, Net of Deferred Income 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 Accrued interest on nonaccrual loans Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans 90 Days and Still Accruing Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing 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. Valuation Technique [Axis] Valuation Technique [Axis] Valuation Technique [Domain] Valuation Technique [Domain] 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] HELOC loans HELOC loans [Member] HELOC loans [Member] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Held-for-sale Disposal Group, Held-for-sale, Not Discontinued Operations [Member] Litigation settlement Lower range Upper range 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) Fair Value Inputs, Discount Rate 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 Loans Held-for-Investment Financing Receivables [Text Block] Commitments and Contingencies Disclosure [Abstract] 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. 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 [Line Items] Loss Contingencies [Line Items] Unused Commitments to Extend Credit Unused Commitments to Extend Credit 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] 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 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 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 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 Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Series C Preferred Stock Series C Preferred Stock [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Preferred Stock, Redemption Amount Preferred Stock, Redemption Amount Accumulated Other Comprehensive Income (Loss) Stockholders' Equity Note Disclosure [Text Block] Schedule of Segment Reporting Information, by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Recently Issued Accounting Pronouncements Description of New Accounting Pronouncements Not yet Adopted [Text Block] Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] Central Counterparty Clearing House Central Counterparty Clearing House [Member] Central Counterparty Clearing House [Member] Derivative Asset [Abstract] Derivative Asset [Abstract] Gross Amount Gross Amounts Netted in the Statement of Financial Position Derivative Asset, Fair Value, Gross Liability Net Amount Presented in the Statement of Financial Position 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 [Abstract] Derivative Liability [Abstract] Gross Amount Gross Amounts Netted in the Statement of Financial Position Derivative Liability, Fair Value, Gross Asset Net Amount Presented in the Statement of Financial Position 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 Collateral Already Posted, Aggregate Fair Value Collateral Already Posted, Aggregate Fair Value Schedule of Derivative Financial Instruments Schedule of Derivative Instruments [Table Text Block] Offsetting of Derivatives Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of Changes in Fair Value of Derivative Instruments Derivative Instruments, Gain (Loss) [Table 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 Total interest income Interest and Dividend Income, Operating Interest Expense Interest Expense [Abstract] Deposits Interest Expense, Deposits Short-term Federal Home Loan Bank advances and other Interest Expense, Short-term Borrowings Long-term Federal Home Loan Bank advances Interest Expense, Federal Home Loan Bank and Federal Reserve Bank Advances, Long-term Other long-term debt Interest Expense, Other Total interest expense Interest Expense Net interest income Interest Income (Expense), Net Provision (benefit) for loan losses Provision for Loan, Lease, and Other Losses Net interest income after provision (benefit) for loan losses Interest Income (Expense), after Provision for Loan Loss Noninterest Income Noninterest Income [Abstract] Net gain on loan sales Loan fees and charges Fees and Commissions, Other Deposit fees and charges Fees and Commissions, Depositor Accounts Loan administration income Bank Servicing Fees Net return (loss) on mortgage servicing rights Gain Loss on Sales of Mortgage Servicing Rights Net gain (loss) resulting from the sales of mortgage servicing rights. Representation and warranty (provision) benefit Representation and Warranty Reserve Expense, Change in Estimate The amount of representation and warrant reserve for the expected losses related to loans that may be required to repurchase (or the indemnity payments we may have to make to purchasers) and account adjustments to previous estimates of expected losses on loans sold. Other noninterest income Noninterest Income, Other Operating Income (Loss) Noninterest Income, Other Operating Income (Loss) Total noninterest income Noninterest Income Noninterest Expense Noninterest Expense [Abstract] Compensation and benefits Labor and Related Expense Commissions Noninterest Expense Commission Expense Occupancy and equipment Occupancy and Equipment Expense Amount of net occupancy expense that may include items, such as depreciation of facilities and equipment, lease expenses, property taxes and property and casualty insurance expense. This also represents equipment expense including depreciation, repairs, rentals, and service contract costs and equipment purchases which do not qualify for capitalization in accordance with the entity's accounting policy. This item may also include furniture expenses. Loan processing expense Loan Processing Fee Legal and professional expense Professional Fees Other noninterest expense Selling, General and Administrative Expense Total noninterest expense Noninterest Expense Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Provision (benefit) for income taxes Net income Net income per share Basic (in dollars per share) Earnings Per Share, Basic Diluted (in dollars per share) Earnings Per Share, Diluted Weighted average shares outstanding Weighted Average Number of Shares Outstanding, Basic [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Earnings Per Share Earnings Per Share [Text Block] 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. Representation and Warranty Reserve Disclosures [Abstract] The disclosure for the reserve for the expected losses related to loans sold into the secondary mortgage market that may be required to repurchase, includes both estimate of expected losses and adjustments to previous estimates of expected losses. Schedule of Representation and Warranty Reserve Activity Schedule of Representation and Warranty Reserve Activity [Table Text Block] Rollforward of activities in the liability for representation and warranty reserve (loan repurchase losses) Maximum outstanding at any month end Federal Home Loan Bank, Advances, Activity for Period, Maximum Outstanding at any Month End The maximum balance outstanding of Federal Home Loan Bank advances at any month end during the period. Average outstanding balance Federal Home Loan Bank, Advances, Activity for Year, Average Balance of Agreements Outstanding Average remaining borrowing capacity Federal Home Loan Bank, Advances, Average Unused Borrowing Capacity Average amount of advances or credit lines available from the Federal Home Loan Bank. Weighted average interest rate (as a percent) Federal Home Loan Bank, Advances, Activity for Year, Average Interest Rate for Year Schedule of Impaired Loans [Table] Schedule of Impaired Financing Receivable [Table] Impaired Loans [Line Items] 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 Average Recorded Investment Impaired Financing Receivable, Average Recorded Investment Interest Income Recognized Impaired Financing Receivable, Interest Income, Cash Basis Method Borrowings Debt Disclosure [Text Block] 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 Total, 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 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 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 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 Futures U.S. Treasury and euro dollar futures [Member] U.S. Treasury and euro dollar futures which are foreign exchange forward traded on an exchange for options or future contracts to buy or sell a certain currency, at a specified date, at a fixed exercise exchange rate. Rate lock commitments and forward agency and loan sales Rate Lock Commitments and Forward Agency and Loan Sales [Member] Securities collateralized by other rate lock commitments, forward agency and loan sales. Net (loss) gain on loan sales Net Gain on Loan Sales [Member] Represents the net gain on loan sales. Other noninterest income Other non-interest income [Member] Represents other forms of revenue earned, excluding interest, which is not otherwise specified in the taxonomy. Net gain (loss) recognized in income on derivative instruments Derivative, Gain (Loss) on Derivative, Net Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Warrants and Rights Note Disclosure [Abstract] Warrants and Restricted Stock Units Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Summary of Contractual Amount of Significant Commitments Other Commitments [Table Text Block] Fair Value Inputs, Assets, Quantitative Information [Table] Fair Value Inputs, Assets, Quantitative Information [Table] 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. Fair value of underlying collateral Fair Value of Underlying Collateral [Member] A valuation technique used in the fair value of underlying collateral. Fair Value Inputs, Assets, Quantitative Information [Line Items] Fair Value Inputs, Assets, Quantitative Information [Line Items] Loss severity (as a percent) Fair Value Inputs, Loss Severity Schedule of Troubled Debt Restructurings [Table] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Troubled Debt Restructurings [Line Items] Financing Receivable, Modifications [Line Items] 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 Schedule of Loans Held-for-investment, Credit Quality Indicator [Table] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] 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 Loans held-for-investment [Line Items] Financing Receivable, Recorded Investment [Line Items] Loans held-for-investment Financing Receivable, Gross Total loans 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 Representation and Warranty Reserve [Roll Forward] Representation and Warranty Reserve [Roll Forward] Tabular disclosure of an entity's representation and warranty reserve that occurred during the period to encapsulate the roll forward presentations of an entity's representation and warranty reserve by type of cost and in total, and explanation of changes that occurred in the period. Balance at beginning of period Representation and warranty reserve Represents the reserve for the expected losses related to loans sold into the secondary mortgage market that may be required to repurchase, includes both estimate of expected losses and adjustments to previous estimates of expected losses. Gain on sale reduction for representation and warranty liability Representation and Warranty Reserve, Addition, New Sales The amount represents the increase in the representation and warranty reserve related to estimated expected mortgage loan repurchase losses related to new sales. Representation and warranty provision (benefit) Representation and Warranty, Reserve Change in Estimate The amount of representation and warrant reserve for the expected losses related to loans that may be required to repurchase (or the indemnity payments we may have to make to purchasers) and account adjustments to previous estimates of expected losses on loans sold. Total Representation and Warranty Reserve, Additions The total provision of estimate of expected losses for the reserve for the expected losses related to loans sold into the secondary mortgage market that may be required to repurchase. Balance at end of period 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] DOJ Agreement DOJ Agreement [Member] Agreement with the Department of Justice as a result of a litigation settlement. 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. Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Bank Subsidiaries [Member] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] Litigation settlement, initial payment Litigation Settlement, Initial Payment Litigation Settlement, Initial Payment Litigation settlement payment amount Litigation Settlement, Amount Annual payments (up to) Litigation Settlement, Expense 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 Litigation Settlement, Terms (less than) Litigation Settlement, Terms Litigation Settlement, Terms 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. Selling commitments Other Commitment 2017 Federal Home Loan Bank, Advances, Maturities Summary, Due in Remainder of Fiscal Year 2018 Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Two 2019 Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Three 2020 Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Four Thereafter Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Five 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. Assets Cash Cash and Due from Banks Interest-earning deposits Interest-bearing Deposits in Banks and Other Financial Institutions Total cash and cash equivalents Investment securities held-to-maturity Loans held-for-sale ($4,511 and $3,145 measured at fair value, respectively) Loans held-for-investment ($13 and $72 measured at fair value, respectively) 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 Mortgage servicing rights 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 Other assets Other Assets Total assets Assets 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 Representation and warranty reserve 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, 70,000,000 shares authorized; 57,043,565 and 56,824,802 shares issued and outstanding, respectively Common Stock, Value, Outstanding Additional paid in capital Additional Paid in Capital Accumulated other comprehensive (loss) income 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 Disclosure of Transfer of Securitizations or Asset-backed Financing Financial Assets Accounted for as Sale [Abstract] Variable Interest Entities (VIEs) 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). Other Liabilities Disclosure [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] Restricted Stock Restricted Stock Units (RSUs) [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 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, shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted, shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested, shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Canceled and forfeited, shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Non-vested balance at end of period, shares Weighted — Average Grant-Date Fair Value per Share Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Non-vested balance at beginning of period (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vested (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Canceled and forfeited (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Non-vested balance at end of period (in usd per share) Deferred cumulative preferred stock dividends Deferred Cumulative Preferred Stock Dividends This represents deferred quarterly dividend payments to third parties on cumulative perpetual preferred stock issued and outstanding. Net income applicable to common stockholders Net income available for Common Stock, EPS Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Weighted average shares Weighted average common shares outstanding 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 Earnings per common share Earnings Per Share, Basic [Abstract] Basic earnings per common share (in usd per share) 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 (loss) earnings per share (in usd per share) Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] 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 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 Schedule of Servicing Assets at Fair Value Schedule of Servicing Assets at Fair Value [Table Text Block] Schedule of Sensitivity Analysis of Fair Value Schedule of Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets [Table Text Block] Schedule of Servicing Assets at Fair Value, Servicing Fees Schedule of Servicing Assets at Fair Value, Servicing Fees [Table Text Block] Tabular disclosure of contractual servicing fees, including late fees and ancillary income, for each type of loan serviced. Schedule of Regulatory Capital Ratios Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] Private-label Securitizations [Table] Schedule of Securitization or Asset-backed Financing Arrangements, Financial Asset for which Transfer is Accounted as Sale [Table] FSTAR 2007-1 Mortgage Securitization FSTAR 2007-1 Mortgage Securitization [Member] The securitization trust is collateralized by second mortgage loans, which is unconsolidated as a variable interest entity. Private-label Securitizations [Line Items] Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items] Number of unconsolidated VIEs Variable Interest Entity, Number of Entities Variable Interest Entity, Number of Entities Number of mortgage securitization trust loans Mortgage Loans on Real Estate, Number of Loans Aggregate principal balance Principal Amount Outstanding on Loans Securitized or Asset-backed Financing Arrangement Commercial Borrower Commercial Borrower [Member] Loans and Leases Receivable, Net Amount [Abstract] Loans and Leases Receivable, Net Amount [Abstract] Total Investment Loans Servicing Asset at Fair Value [Roll Forward] Servicing Asset at Fair Value, Amount [Roll Forward] Balance at beginning of period 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 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 Balance at end of period Representation and Warranty Reserve Representation and Warranty Reserve Disclosure [Text Block] The entire disclosure for representation and warranty reserve, including a tabular reconciliation of the changes in the representation and warranty reserve liability for the reporting period. Legal Proceedings, Contingencies and Commitments Commitments and Contingencies Disclosure [Text Block] Performing Performing Financial Instruments [Member] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] 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. Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]