Offsetting Liabilities [Line Items] Offsetting Liabilities [Line Items] Unrealized (loss) gain on investments, net Unrealized loss (gain) on investments, net Unrealized (loss) gain on investments, net Unrealized Gain (Loss) on Investments Statistical Measurement [Domain] Statistical Measurement [Domain] Mortgage-Back Securities Investment, Policy [Policy Text Block] Schedule of Notional Amounts of Outstanding Derivative Positions Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Debt Securities, Available-for-sale Debt Securities, Available-for-Sale [Table Text Block] Underlying Asset Class [Axis] Underlying Asset Class [Axis] Measurement Input, Default Rate Measurement Input, Default Rate [Member] Award Timing Predetermined Award Timing Predetermined [Flag] Entity File Number Entity File Number Additional Paid-in Capital Additional Paid-in Capital [Member] Interest rate swaps Interest Rate Swap [Member] Tabular List, Table Tabular List [Table Text Block] Noncash or Part Noncash Acquisition, Investments Acquired Noncash or Part Noncash Acquisition, Investments Acquired Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Adjustments for tax withholding on share-based compensation Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Position Position [Axis] Gross unrealized loss Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Net income (loss) per common share-basic (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Dividends declared (in dollars per share) Preferred Stock, Dividends Per Share, Declared Disclosure of Repurchase Agreements [Abstract] Disclosure of Repurchase Agreements [Abstract] Schedule of Stock by Class [Table] Stock, Class of Stock [Table] Measurement Input, Discount Rate Measurement Input, Discount Rate [Member] Other comprehensive income (loss) Total other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax Increase in accrued interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Measurement Input Type [Domain] Measurement Input Type [Domain] Adjustment to Compensation, Amount Adjustment to Compensation Amount Implied cost basis, TBA Cost Basis,TBA Represents the forward price to be paid for the underlying security as if settled. Share-based compensation expense Share-Based Payment Arrangement, Noncash Expense Employee Stock Option Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Other general and administrative Other General and Administrative Expense Realized gain on sales of investments, net Debt and Equity Securities, Realized Gain (Loss) Grantee Status [Domain] Grantee Status [Domain] Dividends on common stock Dividends, Common Stock, Cash Measurement Frequency [Axis] Measurement Frequency [Axis] Insider Trading Policies and Procedures [Line Items] Common Stock, Shares Authorized Common Stock, Shares Authorized Hedging Designation [Domain] Hedging Designation [Domain] Stock issuance, shares Stock Issued During Period, Shares, New Issues Total liabilities and shareholders’ equity Liabilities and Equity Fair Value, Measurements, Recurring Fair Value, Recurring [Member] Total derivatives liabilities Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value LIABILITIES AND SHAREHOLDERS’ EQUITY Liabilities and Equity [Abstract] ATM Offering ATM Offering [Member] ATM Offering Cover [Abstract] Maximum Maximum [Member] Financial Instruments Received as Collateral Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Security Not Offset Accounting Policies [Abstract] Accounting Policies [Abstract] Gross Amount Offset in the Balance Sheet Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Asset Offset Restricted Stock [Member] Restricted Stock [Member] TBA securities Forward Contracts [Member] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Dividends Payable [Line Items] Dividends Payable [Line Items] Proceeds from sales of trading securities Proceeds from Sale, Debt Security, Trading, and Equity Security, FV-NI, Held-for-Investment Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Liquidation preference per share (in dollars per share) Preferred Stock, Liquidation Preference Per Share Liabilities: Liabilities [Abstract] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Entity Shell Company Entity Shell Company Interest-Only-Strip [Member] Interest-Only-Strip [Member] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Interest expense Interest Expense, Operating Comprehensive income (loss) to common shareholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Measurement Input Type [Axis] Measurement Input Type [Axis] Gross unrealized loss, investment, fair value option Gross unrealized loss, investment, fair value option Amount of accumulated unrealized loss on investments in debt securities measured at fair value with change in fair value recognized in net income (trading). 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Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) [Member] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Emerging Growth Company Entity Emerging Growth Company Common stock, dividends, per share, declared Common Stock, Dividends, Per Share, Declared Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Cash Posted as Collateral Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Cash collateral posted to counterparties Restricted Cash and Cash Equivalent Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] 5-7 years 5-7 years [Member] 5-7 years Total gains (losses), net Nonoperating Gains (Losses) Common Stock, Shares, Outstanding Balance, Common shares outstanding Balance, Common shares outstanding Common Stock, Shares, Outstanding Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items] Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items] Interest Rate Swaption Interest Rate Swaption [Member] Repurchase Agreements Transfers and Servicing of Financial Assets, Transfers of Financial Assets, Financings, Policy [Policy Text Block] Document Information [Table] Document Information [Table] PEO PEO [Member] Noninterest Expense [Abstract] Noninterest Expense [Abstract] Fair value through net income Debt Securities, Trading Tenor [Domain] Tenor [Domain] Tenor [Domain] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Rollforward] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Share-Based Payment Arrangement [Abstract] Cash including cash collateral posted to counterparties at beginning of period Cash including cash collateral posted to counterparties at end of period Total cash including cash posted to counterparties shown on consolidated statement of cash flows Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Derivative assets TBA securities Derivative Asset Fair value, 12 Months or Longer Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Not Designated as Hedging Instrument, Economic Hedge Not Designated as Hedging Instrument, Economic Hedge [Member] Dividend, payment rate, additional basis spread on variable rate Dividend, Payment Rate, Additional Basis Spread on Variable Rate Dividend, Payment Rate, Additional Basis Spread on Variable Rate Increase in accrued interest payable Increase (Decrease) in Interest Payable, Net Document Information [Line Items] Document Information [Line Items] Preferred Stock, Shares Issued Preferred Stock, Shares Issued Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Hedging Relationship [Axis] Hedging Relationship [Axis] Offsetting [Abstract] Offsetting [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Total Liabilities, Fair Value Disclosure Notional Amount Notional Amount Beginning Notional Amount-Long (Short) Ending Notional Amount-Long (Short) Derivative, Notional Amount Issuer Type [Domain] Issuer Type [Domain] Issuer Type [Domain] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] City Area Code City Area Code Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Preferred stock dividends Preferred Stock Dividends, Income Statement Impact Level 3 Mortgage Loans, FV option, Measurement Input Loan, Held-for-Sale, Measurement Input Contingencies Commitments and Contingencies, Policy [Policy Text Block] Net Amount Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, after Offset and Deduction Awards outstanding, beginning of period (in shares) Awards outstanding, end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Variation margin receivable, derivative Variation Margin Receivable, Derivative Investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Accrued interest receivable Interest Receivable Repayments of repurchase agreement borrowings Repayments of Short-Term Debt Realized gain on sales of investments, net Debt Securities, Realized Gain (Loss) Preferred Stock, Par or Stated Value Per Share Preferred Stock, Par or Stated Value Per Share Subsequent Event Subsequent Event [Member] Net interest income Interest Income (Expense), Operating Other liabilities Other Liabilities Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount 10-year 10-year [Member] 10-year Gross Amount of Recognized Liabilities Derivative Liability, Subject to Master Netting Arrangement, before Offset Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Equity Components [Axis] Equity Components [Axis] Organization Nature of Operations [Text Block] 15-20 years 15-20 Years [Member] 15-20 Years Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Additions Derivative, Notional Amount, Derivative Instruments Added Aggregate notional amount entered into in the period specified by the derivative(s). Expressed as an absolute value. Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] Organization and Summary of Significant Accounting Policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Supplemental Disclosure of Cash Activity: Supplemental Cash Flow Information [Abstract] Amortized cost Debt Securities, Available-for-Sale, Amortized Cost Other Performance Measure, Amount Other Performance Measure, Amount Entity Address, State or Province Entity Address, State or Province Mortgage loans Loans Receivable, Fair Value Disclosure Measurement Input, Constant Prepayment Rate Measurement Input, Constant Prepayment Rate [Member] Net increase in cash, including cash posted to counterparties Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation Derivative Instrument [Axis] Derivative Instrument [Axis] Individual: Individual [Axis] Additional paid-in capital Additional Paid in Capital, Common Stock Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Amortization of investment premiums, net Amortization Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Maturity Information [Domain] Maturity Information [Domain] Maturity Information [Domain] Cash paid for interest on repurchase agreements Interest Paid, Excluding Capitalized Interest, Operating Activity Schedule of Assets and Associated Liabilities Accounted for as Secured Borrowings [Table] Transfer and Servicing, Asset and Liability Accounted for as Secured Borrowing [Table] Document Fiscal Year Focus Document Fiscal Year Focus Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Shareholders' Equity and Share-based Compensation Shareholders' Equity and Share-Based Payments [Text Block] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Other amortization and depreciation Other Depreciation and Amortization Schedule of Gain (Loss) on Securities [Table] Schedule of Gain (Loss) on Securities [Table] Entity Interactive Data Current Entity Interactive Data Current Increase in cash collateral posted by counterparties Increase (Decrease) Cash Collateral from Counterparties WAVG Period of Recognition Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Equity [Abstract] Equity [Abstract] Derivative Instruments Derivatives, Policy [Policy Text Block] Segment Reporting Segment Reporting Disclosure [Text Block] 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] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Maturity Information [Axis] Maturity Information [Axis] Maturity Information Schedule of Underlying Assets of Repurchase Agreements when Amount of Repurchase Agreements Exceeds 10 Percent of Assets Schedule of Underlying Assets of Repurchase Agreements when Amount of Repurchase Agreements Exceeds 10 Percent of Assets [Table Text Block] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Repurchase agreements Repurchase Agreements, Resale Agreements, Securities Borrowed, and Securities Loaned Disclosure [Text Block] Share-Based Payment Arrangement, Nonvested Award, Cost Share-Based Payment Arrangement, Nonvested Award, Cost [Table Text Block] Amortized cost Debt Securities, Trading, Amortized Cost Entity Central Index Key Entity Central Index Key PEO Name PEO Name Gain (loss) on derivative instruments, net Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Residential Mortgage Backed Securities [Member] Residential Mortgage-Backed Securities [Member] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Arrangement Duration Trading Arrangement Duration Method of stock issuance [Axis] Method of stock issuance [Axis] Method of stock issuance Debt Securities, Trading, and Equity Securities, FV-NI Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block] Schedule of Derivative Instruments in Statement of Financial Position, Fair Value Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Settlements, Terminations, or Pair-Offs Derivative, Notional Amount, Derivative Instruments Maturing, Settled, Terminated, or Paired-Off Notional amount of derivative instrument maturing, settled, terminated, or paired-off during the period. Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Local Phone Number Local Phone Number Class of Stock [Domain] Class of Stock [Domain] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Remaining Compensation Cost Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Subsequent Event Type [Axis] Subsequent Event Type [Axis] Long position Long [Member] Less than 30 days Maturity Less than 30 Days [Member] Assets [Abstract] Assets [Abstract] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Purpose of Interest Rate Derivative Instruments Not Designated as Hedging Instruments Purpose of Interest Rate Derivative Instruments Not Designated as Hedging Instruments Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Variation margin payable, derivative Variation Margin Payable, Derivative Stockholders' Equity Attributable to Parent [Abstract] Equity, Attributable to Parent [Abstract] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Borrowings under repurchase agreements Proceeds from Short-Term Debt Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Adjustments for tax withholding on share based compensation (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Total Debt Securities, Trading and Available-for-Sale Mortgage-backed securities (including pledged of $23,669,753 and $14,593,470, respectively), at fair value Financial Instruments, Owned, Mortgages, Mortgage-Backed and Asset-Backed Securities, at Fair Value Derivatives Derivative Instruments and Hedging Activities Disclosure [Text Block] Gross Amount of Recognized Assets Derivative Asset, Subject to Master Netting Arrangement, before Offset Method of stock issuance [Domain] Method of stock issuance [Domain] Method of stock issuance [Domain] Fair Value as of Grant Date Award Grant Date Fair Value Entity Registrant Name Entity Registrant Name Dividend equivalent rights Dividend equivalent rights [Member] Dividend equivalent rights Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table] Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table] Compensation and benefits Labor and Related Expense MBS Debt Security, Mortgage-Backed, Available-for-Sale, Fair Value Disclosure Non-Agency MBS Mortgage-Backed Securities, Issued by Private Enterprises [Member] Incremental common shares attributable to dilutive effect of share-based payment arrangements Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Document Quarterly Report Document Quarterly Report Fair value, Less than 12 Months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Stock issuance costs Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs Total Assets, Fair Value Disclosure Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Number of operating segments Number of Operating Segments Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Not Designated as Hedging Instrument, Trading Not Designated as Hedging Instrument, Trading [Member] Granted (in dollars 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 Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Exchange Traded Options Exchange Traded Options [Member] Net Amount Derivative Liability, Subject to Master Netting Arrangement, after Offset and Deduction Other assets Prepaid Expense and Other Assets Restatement Determination Date: Restatement Determination Date [Axis] Shared-based compensation, net of amortization, after forfeitures, value Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Non-PEO NEO Non-PEO NEO [Member] Allowance for credit loss Debt Securities, Available-for-Sale, Allowance for Credit Loss Position Position [Domain] 30 to 90 days Maturity 30 to 90 Days [Member] Schedule of Interest Rate Derivatives Schedule of Interest Rate Derivatives [Table Text Block] Dividend rate, percent Preferred Stock, Dividend Rate, Percentage Gross unrealized gain Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Offsetting Assets Offsetting Assets [Table Text Block] Name Trading Arrangement, Individual Name Underlying Asset Class [Domain] Underlying Asset Class [Domain] Award Type [Domain] Award Type [Domain] Equity Awards Adjustments Equity Awards Adjustments [Member] Maturity Greater than 90 Days Maturity Greater than 90 Days [Member] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Compensation Amount Outstanding Recovery Compensation Amount Share-Based Payment Arrangement, Activity Share-Based Payment Arrangement, Activity [Table Text Block] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Offsetting Assets [Table] Offsetting Assets [Table] Preferred Stock Preferred Stock [Member] Investments [Line Items] Schedule of Investments [Line Items] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Name Awards Close in Time to MNPI Disclosures, Individual Name Awards outstanding, beginning of period (in dollars per share) Awards outstanding, end of period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Dividend payable component [Axis] Dividend payable component [Axis] Dividend payable component Carrying Value Derivative Instruments Not Designated as Hedging Instruments, Carrying Value, Net Represents the fair value of the instrument, net of its cost not yet paid. Number of Securities, 12 Months or Longer Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Financial Instruments [Domain] Financial Instruments [Domain] Tenor [Axis] Tenor [Axis] Tenor of instrument Performance Shares [Member] Performance Shares [Member] Mortgage-Backed Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Repurchase Agreements and Similar Transactions, Maturity Periods [Domain] Repurchase Agreements and Similar Transactions, Maturity Periods [Domain] Gain (Loss) on Derivative Instruments Held for Trading Purposes, Net Gain (Loss) on Derivative Instruments Held for Trading Purposes, Net Principal payments received on mortgage loans held for investment Proceeds from Principal Repayment, Loan and Lease, Held-for-Investment Pledging Purpose [Domain] Pledging Purpose [Domain] Minimum Minimum [Member] Net Amount Derivative Asset, Subject to Master Netting Arrangement, after Offset and Deduction Cash collateral posted by counterparties Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset 30-year 30-year [Member] 30-year Net Income (Loss) Per Common Share Earnings Per Share, Policy [Policy Text Block] Consolidation and Variable Interest Entities Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block] Dividend payable component [Domain] Dividend payable component [Domain] Dividend payable component [Domain] Company Selected Measure Name Company Selected Measure Name Gross Amount Offset in the Balance Sheet Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Nonvested awards expected to settle on their vesting date (percent) Share-Based Compensation Arrangement by share-Based Payment Award, Awards Expected to Settle, Percent Share-Based Compensation Arrangement by share-Based Payment Award, Awards Expected to Settle, Percent Accrued interest payable Interest Payable Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Dividends payable Dividends Payable All Executive Categories All Executive Categories [Member] Schedule of Assets Sold under Agreements to Repurchase [Table] Asset Sold under Agreement to Repurchase [Table] Share-Based Payment Arrangement, Employee Share-Based Payment Arrangement, Employee [Member] Weighted average common shares-diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Realized Gain (Loss) on Investments Realized Gain (Loss) on Investments [Table Text Block] Net receipts (payments) on derivative instruments Payments for (Proceeds from) Derivative Instrument, Investing Activities Preferred Stock, Liquidation Preference, Value Preferred Stock, Liquidation Preference, Value Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Derivative [Table] Derivative [Table] Entity Small Business Entity Small Business Cash paid for stock issuance costs Payments of Stock Issuance Costs Preferred Stock, Shares Outstanding (in shares) Balance, Preferred shares outstanding (in shares) Balance, Preferred shares outstanding (in shares) Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Document Transition Report Document Transition Report Preferred stock, par value $0.01 per share; 50,000,000 shares authorized; 4,460,000 and 4,460,000 shares issued and outstanding, respectively ($111,500 and $111,500 aggregate liquidation preference, respectively) Preferred Stock, Value, Outstanding Underlying Securities Award Underlying Securities Amount Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount 7-10 years 7-10 years [Member] 7-10 years 3-5 years 3-5 years [Member] 3-5 years Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Hedging Designation [Axis] Hedging Designation [Axis] Investments [Table] Schedule of Investments [Table] Scenario [Axis] Scenario [Axis]  Total shareholders’ equity Balance Balance Equity, Including Portion Attributable to Noncontrolling Interest Margin deposit assets Margin Deposit Assets Document Type Document Type Level 3 Fair Value, Inputs, Level 3 [Member] Net Income (Loss) Per Common Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Derivative Contract [Domain] Derivative, Name [Domain] Derivative Contract [Domain] Proceeds from issuance of common stock Proceeds from Issuance of Common Stock Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period All Individuals All Individuals [Member] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Name Forgone Recovery, Individual Name (Gain) loss on derivative instruments, net Unrealized Gain (Loss) on Derivatives Statistical Measurement [Axis] Statistical Measurement [Axis] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount 5-year 5-year [Member] 5-year Payments related to tax withholding for share-based compensation Payment, Tax Withholding, Share-Based Payment Arrangement Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Debt Securities, Trading and Available-for-sale [Abstract] Debt Securities, Trading and Available-for-Sale [Abstract] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Other comprehensive income: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Alternative [Abstract] Schedule of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] Net income (loss) to common shareholders Net (loss) income to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Derivative, average fixed interest rate Derivative, Average Fixed Interest Rate Derivative Instruments, Gain (Loss) Derivative Instruments, Gain (Loss) [Table Text Block] Change in other assets and liabilities, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Total operating expenses Operating Expenses Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Level 1 Fair Value, Inputs, Level 1 [Member] Net income (loss) per common share-diluted (in dollars per share) Earnings Per Share, Diluted Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Interest income Interest Income, Operating Title of 12(b) Security Title of 12(b) Security Preferred stock dividends Dividends, Preferred Stock, Cash Dividends [Axis] Dividends [Axis] Earnings Per Share [Abstract] Notional amount of nonderivative instruments Notional balance Represents the predetermined dollar amount that acts as the basis for calculating the interest payments received by the investor, even though the investor never receives that actual principal amount. It's a way to measure the size of the position and its exposure to interest rate fluctuations. Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Derivatives [Roll Forward] Derivatives [Roll Forward] Derivatives Realized loss on sale of MBS - FVO Debt Securities, Trading, Realized Loss Asset-backed Securities, Securitized Loans and Receivables Asset-Backed Securities, Securitized Loans and Receivables [Member] Implied market value, TBA Market value, TBA Represents the current estimated fair value of the security underlying the forward contract. Preferred Stock Including Additional Paid in Capital Preferred Stock Including Additional Paid in Capital [Member] Gross unrealized gain, investment, fair value option Gross unrealized gain, investment, fair value option Amount of gross unrealized gains on investments in debt securities measured at fair value with change in fair value recognized in net income (trading). Gain (Loss) on Securities [Line Items] Gain (Loss) on Securities [Line Items] Award Timing Disclosures [Line Items] unpaid dividends unpaid dividends [Member] Dividends not yet paid out to common and preferred stockholders, excluding dividend equivalent rights on share-based compensation. 10-15 years 10-15 years [Member] 10-15 years Measurement Frequency [Domain] Measurement Frequency [Domain] Unrealized (loss) gain on available-for-sale investments OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Measurement Input, Loss Severity Measurement Input, Loss Severity [Member] Gross Amount of Recognized Liabilities Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, before Offset Repurchase agreements Net Amount of Liabilities Presented in the Balance Sheet Securities Sold under Agreements to Repurchase Net income (loss) Net Income (Loss) Attributable to Parent Subsequent Event [Table] Subsequent Event [Table] Dividends [Domain] Dividends [Domain] Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] Expiration Date Trading Arrangement Expiration Date Due to counterparties Other Payable to Broker-Dealer and Clearing Organization Preferred stock, Shares Authorized (in shares) Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Adoption Date Trading Arrangement Adoption Date Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Entity Current Reporting Status Entity Current Reporting Status Derivative [Line Items] Derivative [Line Items] Cash Posted as Collateral Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Offsetting Liabilities Offsetting Liabilities [Table Text Block] Cash collateral posted by counterparties Cash collateral posted by counterparties The amount of cash received from a particular counterparty in excess of the amount pledged to the same counterparty for margin requirements on derivative instruments. Accumulated deficit Retained Earnings (Accumulated Deficit) Financial Instrument [Axis] Financial Instrument [Axis] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Executive Category: Executive Category [Axis] Gross Unrealized Losses, 12 Months or Longer Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Purchases of investments Payment for Acquisition, Trading Security, Held-for-Investment Other operating expenses Other Operating Income (Expense), Net Debt Securities, Trading, Realized Gain Debt Securities, Trading, Realized Gain Number of Securities, Less than 12 Months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions Current Fiscal Year End Date Current Fiscal Year End Date Class of Stock [Axis] Class of Stock [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Gross Unrealized Losses, Less than 12 Month Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Number of shares available for grant (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Statement [Table] Statement [Table] Fair Value Net asset position Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value Derivative liabilities TBA securities Derivative Liability Adjustments to reconcile net income (loss) to cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Series C Preferred Stock Series C Preferred Stock [Member] 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] Antidilutive unvested RSUs and PSUs (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount All Adjustments to Compensation All Adjustments to Compensation [Member] Unrealized gain (loss) on other investments Unrealized gain (loss) on other investments Unrealized gain (loss) on other investments resulting from change in fair value during the period recorded within net income. Amendment Flag Amendment Flag Share-based incentive plan, number of shares authorized for issuance Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Termination Date Trading Arrangement Termination Date Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Cash and Cash Equivalents Cash and Cash Equivalents, Unrestricted Cash and Cash Equivalents, Policy [Policy Text Block] Due from counterparties Receivable from Broker-Dealer and Clearing Organization Derivative, Fair Value, Net Derivative, Fair Value, Net Dividends Payable [Table] Dividends Payable [Table] Weighted average common shares-basic (in shares) Weighted Average Number of Shares Outstanding, Basic Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Subsequent Events [Abstract] Segment Reporting [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Entity Tax Identification Number Entity Tax Identification Number Share-Based Payment Arrangement, Nonemployee Share-Based Payment Arrangement, Nonemployee [Member] Grantee Status [Axis] Grantee Status [Axis] Scenario [Domain] Scenario [Domain] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Short position Short [Member] Common Stock, Par or Stated Value Per Share Common Stock, Par or Stated Value Per Share Cost Derivative Instruments Not Designated as Hedging Instruments, Asset, at Cost Basis Derivative Instruments Not Designated as Hedging Instruments, Asset, at Cost Basis Common Stock, Shares, Issued Common Stock, Shares, Issued Issuer Type [Axis] Issuer Type [Axis] Whether issued by government sponsored entity or private entity. Commercial Mortgage Backed Securities [Member] Commercial Mortgage-Backed Securities [Member] Asset Pledged as Collateral with Right Asset Pledged as Collateral with Right [Member] Use of Estimates Use of Estimates, Policy [Policy Text Block] Agency MBS Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] Dividends paid Payments of Dividends Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Subsequent Event, Description Subsequent Event, Description Gross Amount Offset in the Balance Sheet Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Subsequent Events Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] Security Exchange Name Security Exchange Name  Total liabilities Liabilities Derivative assets Derivative Instruments Not Designated as Hedging Instruments, Carrying Value Derivative Instruments Not Designated as Hedging Instruments, Carrying Value Dividend, payment rate, original basis spread on variable rate Dividend, Payment Rate, Original Basis Spread on Variable Rate Dividend, Payment Rate, Original Basis Spread on Variable Rate Fair Value of Collateral Pledged Transfers Accounted for as Secured Borrowings, Assets, Carrying Amount Common stock, par value $0.01 per share, 720,000,000 and 360,000,000 shares authorized, respectively; 237,414,259 and 174,814,912 shares issued and outstanding, respectively Common Stock, Value, Outstanding Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Pledging Purpose [Axis] Pledging Purpose [Axis] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Principal payments received on trading securities Proceeds from Maturity, Repayment, and Call, Debt Security, Trading, Held-for-Investment Offsetting Assets [Line Items] Offsetting Assets [Line Items] Offsetting Repurchase Agreement Liabilities Offsetting Repurchase Agreement Liabilities [Table Text Block] Tabular disclosure of repurchase agreements that are subject to underlying agreements with master netting or similar arrangements, including amounts Company elects not to offset. Financial Instruments Posted as Collateral Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Security Not Offset Stock issuance, value Stock Issued During Period, Value, New Issues Statement [Line Items] Statement [Line Items] Financial Instruments Posted as Collateral Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Security Not Offset Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Average Fixed Receive Rate Derivative, Swaption Interest Rate Cash and cash equivalents Cash and Cash Equivalent Subsequent Event [Line Items] Subsequent Event [Line Items] Common Stock Common Stock [Member] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Fair value through OCI Debt Securities, Available-for-Sale Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Chief Executive Officer [Member]