Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Incurred operating expenses Incurred Operating Expenses Incurred Operating Expenses Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Management fees paid in shares Adviser elected to receive Stock Issued During Period, Value, Issued for Services Subsequent Event Subsequent Event [Member] Net Income per Class of Common Stock - Diluted Net Income (Loss) Available to Common Stockholders, Diluted Document Fiscal Year Focus Document Fiscal Year Focus Reimbursement rate, term Organization And Offering, Reimbursement Rate, Term Organization And Offering, Reimbursement Rate, Term Floor interest rate Debt Instrument, Floor Interest Rate Debt Instrument, Floor Interest Rate Weighted Average Rate Debt, Weighted Average Interest Rate DEPENDENCE ON EXTERNAL ADVISER Dependence On External Adviser [Text Block] Dependence On External Adviser Adjustment to Compensation, Amount Adjustment to Compensation Amount Financial Instrument [Axis] Financial Instrument [Axis] Segment Reporting [Abstract] Repurchase limit, percent of aggregate NAV per month Share Repurchase Program, Total Repurchase Limit, Percent Of Aggregate NAV Per Month Share Repurchase Program, Total Repurchase Limit, Percent Of Aggregate NAV Per Month Common shares Common Stock, Value, Issued Settlement of prior period funding activity Settlement Of Prior Period Funding Activity Settlement Of Prior Period Funding Activity Accrued commissions and fees Accrued Commissions And Fees Current Accrued Commissions And Fees Current Line of Credit Line of Credit [Member] Entity Ex Transition Period Entity Ex Transition Period Restatement Determination Date Restatement Determination Date Repurchase limit, percent of aggregate NAV per quarter Share Repurchase Program, Total Repurchase Limit, Percent Of Aggregate NAV Per Quarter Share Repurchase Program, Total Repurchase Limit, Percent Of Aggregate NAV Per Quarter Financing Receivable [Roll Forward] Financing Receivable [Roll Forward] Financing Receivable Residential transition loan acquisition and funding activities Residential Transitional Loan Origination And Funding Activities Residential Transitional Loan Origination And Funding Activities RTL-C LLC RTL-C LLC [Member] RTL-C LLC Amendment Flag Amendment Flag Consolidated Entities [Axis] Consolidated Entities [Axis] RTL VIE RTL VIE [Member] RTL VIE Other revenues Revenue Not from Contract with Customer, Other Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Common, Beneficial Interest Common, Beneficial Interest [Member] Common, Beneficial Interest Net Distributions Declared per Common Share (in USD per share) Common Stock, Dividends, Per Share, Declared Net Common Stock, Dividends, Per Share, Declared Net Renovation Renovation [Member] Renovation RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Consolidated Entities [Domain] Consolidated Entities [Domain] Performance, hurdle rate Performance Fee, Hurdle Rate Performance Fee, Hurdle Rate Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Entity Address, State or Province Entity Address, State or Province PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par value (in USD per share) Par value (in USD per share) Common Stock, Par or Stated Value Per Share Assets: Assets, Fair Value Disclosure [Abstract] Outstanding principal amount Notional Amount Derivative, Notional Amount Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Schedule of Due to Related Parties Schedule of Related Party Transactions [Table Text Block] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Number of reportable segments Number of Reportable Segments Audit Committee Member Audit Committee Member [Member] Audit Committee Member Entity Address, City or Town Entity Address, City or Town Carrying Value / Fair Value Derivative, Fair Value, Net Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Statement of Financial Position [Abstract] Title and Position [Domain] Title and Position [Domain] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Accounting Basis of Accounting, Policy [Policy Text Block] Class of Stock [Axis] Class of Stock [Axis] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Net Income per Class of Common Stock - Basic Net Income (Loss) Available to Common Stockholders, Basic Accounts receivable and other assets Total Accounts Receivable and Other Assets Accounts and Other Receivables, Net, Current Distribution reinvestment Stock Issued During Period, Value, Dividend Reinvestment Plan Level 2 Fair Value, Inputs, Level 2 [Member] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] NQMs Non Qualified Mortgage Loans [Member] Non Qualified Mortgage Loans Common Class J-2 Common Class J-2 [Member] Common Class J-2 Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] 90+ Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Other expenses Other Expenses Subsequent Event Type [Axis] Subsequent Event Type [Axis] Collateralized Debt Obligations Collateralized Debt Obligations [Member] Schedule of Long-Term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Class of Treasury Stock [Table] Class of Treasury Stock [Table] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Related and Nonrelated Parties [Axis] Related and Nonrelated Parties [Axis] Weighted Average Loan Balance to Value/After Repair Value Financing Receivable, Weighted Average Committed Loan Balance To Value Financing Receivable, Weighted Average Committed Loan Balance To Value Derivative assets Future [Member] Construction Construction [Member] Carrying Value / Fair Value Long-Term Debt Distribution reinvestment (in shares) Stock Issued During Period, Shares, Dividend Reinvestment Plan Carrying Value Notes Receivable, Fair Value Disclosure Document Period End Date Document Period End Date TRS-W VIE TRS-W VIE [Member] TRS-W VIE Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Outstanding Face Debt Instrument, Face Amount EQUITY AND EARNINGS PER SHARE Equity [Text Block] Net Income per Common Share Earnings Per Share, Basic [Abstract] NAV Net Assets Expenses Costs and Expenses [Abstract] NAV potential percentage purchased Net Assets, Potential Purchase Percentage Net Assets, Potential Purchase Percentage Stock repurchase program, share purchase period Stock Repurchase Program, Shares Purchase Period Stock Repurchase Program, Shares Purchase Period Carrying Value Beginning balance Ending balance Financing Receivable, before Allowance for Credit Loss Total Liabilities Liabilities, Fair Value Disclosure Entity Shell Company Entity Shell Company Shares authorized (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Management fees paid in shares (in shares) Adviser elected to receive (in shares) Stock Issued During Period, Shares, Issued for Services Director fee Director Fee Name Outstanding Recovery, Individual Name Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Directors fees, portion paid in shares, value of shares Directors Fees, Portion Paid In Shares, Value Of Shares Issued Directors Fees, Portion Paid In Shares, Value Of Shares Issued Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Total Liabilities Liabilities Liabilities Discount Rate Measurement Input, Discount Rate [Member] Schedule of Accounts Payable and Other Liabilities Other Liabilities [Table Text Block] 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] Common Class I Common Class I [Member] Common Class I Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Weighted Average Number of Common Shares Outstanding Weighted Average Number of Shares Outstanding, Basic [Abstract] Company Selected Measure Name Company Selected Measure Name Acquisition and funding activities Payments to Acquire Finance Receivables Asset Class [Domain] Asset Class [Domain] Credit Facility [Domain] Credit Facility [Domain] Related Party Transactions [Abstract] Cash Flows From Operating Activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Sales commissions and fees Sales Commissions and Fees Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Margin Finance Facility Margin Finance Facility [Member] Margin Finance Facility Underlying Security Market Price Change Underlying Security Market Price Change, Percent DERIVATIVES AND HEDGING Derivative Instruments and Hedging Activities Disclosure [Text Block] Entities [Table] Entities [Table] Mortgage Receivable Mortgage Receivable [Member] Common Class S And T Common Class S And T [Member] Common Class S And T Effect of dilutive Class E unvested shares (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment Award Timing Predetermined Award Timing Predetermined [Flag] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Share-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Level 1 Fair Value, Inputs, Level 1 [Member] Residential mortgage loan acquisition and funding activities Residential Mortgage Loan Origination And Funding Activities Residential Mortgage Loan Origination And Funding Activities Organization, Consolidation and Presentation of Financial Statements [Abstract] Changes in Assets and Liabilities: Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract] Fair Value Debt Instrument, Collateral, Fair Value Disclosure Debt Instrument, Collateral, Fair Value Disclosure Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table] Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table] All Executive Categories All Executive Categories [Member] Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Repayments of secured financings Repayments of Long-Term Lines of Credit Capital Unit [Line Items] Capital Unit [Line Items] Grants in period per trustee (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period Per Trustee Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period Per Trustee Plan Name [Domain] Plan Name [Domain] Reconciliation of Cash and Cash Equivalents and Restricted Cash: Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract] Paydowns Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements % of Loan Count Financing Receivable, Portfolio Segment, Percent Of Portfolio, Loan Count Financing Receivable, Portfolio Segment, Percent Of Portfolio, Loan Count Other Income (Loss) Operating Income (Loss) [Abstract] Annual fee cap, as a percent of aggregate servicing fees Fee Rate, Cap, Percentage Of Aggregate Servicing Fees Fee Rate, Cap, Percentage Of Aggregate Servicing Fees Schedule of Basic and Diluted EPS Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Overhead expenses Overhead Expenses Overhead Expenses Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Common Class T Common Class T [Member] Common Class T SEGMENT REPORTING Segment Reporting [Text Block] INVESTMENTS IN LOANS Investment in Debt and Equity Securities and Other Trading Assets [Text Block] Minimum Minimum [Member] Expiration Date Trading Arrangement Expiration Date VARIABLE INTEREST ENTITIES Variable Interest Entity Disclosure [Text Block] Liabilities Liabilities [Abstract] Current Financial Asset, Less Than 90 Days Past Due [Member] Financial Asset, Less Than 90 Days Past Due Restricted cash Restricted Cash and Cash Equivalent Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] 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] Shareholder servicing fees Payments For Distribution Fees Payments For Distribution Fees Due to related parties Due to Related Parties Other Liabilities Shareholder servicing fees Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Default Rate Measurement Input, Default Rate [Member] Derivative [Table] Derivative [Table] Proceeds from issuance of common shares Gross Proceeds Proceeds from Issuance of Common Stock Common Class S Common Class S [Member] Common Class S Operating Expenses Operating Expenses [Policy Text Block] Operating Expenses Sale of common shares (in shares) Sale of Stock, Number of Shares Issued in Transaction Exercise Price Award Exercise Price Cash Flows From Investing Activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Related Party Transaction [Axis] Related Party Transaction [Axis] Document Quarterly Report Document Quarterly Report Performance, catch-up, annual percentage of adjusted capital Performance Fee, Catch-Up, Annual Percentage Of Adjusted Capital Performance Fee, Catch-Up, Annual Percentage Of Adjusted Capital Residential transition loans, at fair value Transitional Loans Receivable, Fair Value Transitional Loans Receivable, Fair Value 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] Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] Margin Finance Agreement Margin Finance Agreement [Member] Margin Finance Agreement Repayments and sales Proceeds from Collection of Finance Receivables SECURED FINANCINGS Debt Disclosure [Text Block] Interest payable Interest Payable Equity, Capital Unit or Share [Table] Equity, Capital Unit or Share [Table] UPB Financing Receivable, after Allowance for Credit Loss Management fees Management fees Management Fee Expense Management fees paid in shares Management Fee, Paid With Issuance Of Stock Management Fee, Paid With Issuance Of Stock Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Measurement Input Type [Domain] Measurement Input Type [Domain] Other factors Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Fair Value, Recurring Basis, Unobservable Input, Reconciliation, Asset (Liability), Gain (Loss), Statement Of Income, Extensible List Not Disclosed Flag Fair Value, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement Of Income Extensible List Not Disclosed Flag Fair Value, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement Of Income Extensible List Not Disclosed Flag Due to (from) servicer Due To (From) Servicer Due To (From) Servicer Sale of stock, consideration received Sale of Stock, Consideration Received on Transaction Adoption Date Trading Arrangement Adoption Date Management Agreement Management Agreement [Member] Management Agreement Total Shareholders’ Equity Beginning balance Ending balance Equity, Attributable to Parent TRS-W Repurchase Agreement TRS-W Repurchase Agreement [Member] TRS-W Repurchase Agreement Assets Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Other Liabilities Disclosure [Abstract] Weighted Average Asset Yield Weighted Average Yield Weighted Average Yield Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Weighted average maturities Derivative, Average Remaining Maturity Insider Trading Policies and Procedures [Line Items] Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Carrying Value Over (Under) UPB Financing Receivable, Over (Under) Face Amount Financing Receivable, Over (Under) Face Amount Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Number of operating segments Number of Operating Segments Antidilutive securities (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Financial Asset, Aging [Domain] Financial Asset, Aging [Domain] Accounts receivable and other assets Increase (Decrease) in Accounts Receivable and Other Operating Assets Entity Central Index Key Weighted Average Weighted Average [Member] All Adjustments to Compensation All Adjustments to Compensation [Member] Residential Transition Loans and Residential Mortgage Loans Residential Transition Loans And Residential Mortgage Loans [Policy Text Block] Residential Transition Loans And Residential Mortgage Loans Equity [Abstract] 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] Income Taxes Income Tax, Policy [Policy Text Block] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Income Statement [Abstract] Shareholders’ Equity Equity, Attributable to Parent [Abstract] Document Transition Report Document Transition Report Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Investment, Name [Axis] Investment, Name [Axis] Trustee fee payable Trustee Fee Payable Trustee Fee Payable Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Proceeds from settlement of prior period repayment activity Proceeds From Settlement Of Financing Activities Proceeds From Settlement Of Financing Activities Rate Debt Instrument, Basis Spread on Variable Rate City Area Code City Area Code All Individuals All Individuals [Member] SUBSEQUENT EVENTS Subsequent Events [Text Block] Measurement input Debt Securities, Trading, Measurement Input Secured financings Debt Instrument, Fair Value Disclosure Distributions to shareholders Payments of Dividends % of Carrying Value Financing Receivable, Portfolio Segment, Percent Of Portfolio, Carrying Value Financing Receivable, Portfolio Segment, Percent Of Portfolio, Carrying Value Name Forgone Recovery, Individual Name Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Annual rate Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Distribution fees Distribution Fee Expense Distribution Fee Expense Statement [Line Items] Statement [Line Items] Total Assets Assets Assets Entity [Domain] Entity [Domain] Interest expense Interest Expense, Operating Variable Interest Entity, Not Primary Beneficiary Variable Interest Entity, Not Primary Beneficiary [Member] Mortgage loans Loan, Mortgage, Held-for-Sale, Fair Value Disclosure Accounts payable and other liabilities Accounts Payable and Other Accrued Liabilities Secured Financings Secured Financing [Policy Text Block] Secured Financing Common shares issued (in shares) Stock Issued During Period, Shares, New Issues PEO PEO [Member] Shareholder servicing fee Management and Service Fees, Rate Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Cash and Cash Equivalents and Restricted Cash Cash and Cash Equivalents, Policy [Policy Text Block] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Grant date fair value Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Weighted Average Grant Date Fair Value, Amount Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Weighted Average Grant Date Fair Value, Amount Retained Earnings (Accumulated Deficit) Retained Earnings [Member] Total Expenses Operating Expenses Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Schedule of Weighted Averages of Inputs Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Diluted (in USD per share) Earnings Per Share, Diluted Realized and unrealized (loss) gain on residential transition loans and mortgage loans, at fair value Realized and unrealized gain (loss) on residential transition loans and mortgage loans, at fair value Realized And Unrealized Gain (Loss) on Loans Receivable at Fair Value Realized And Unrealized Gain (Loss) on Loans Receivable at Fair Value Entity Current Reporting Status Entity Current Reporting Status Derivatives and Hedging Derivatives, Methods of Accounting, Hedging Derivatives [Policy Text Block] Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Liabilities: Liabilities, Fair Value Disclosure [Abstract] Class E Par Value Common Class E Common Class E [Member] Common Class E Performance, catch-up division rate Performance Fee, Catch-Up, Division Rate Performance Fee, Catch-Up, Division Rate Percentage of offering price Sales Commissions And Fees, Percentage Of Offering Price Sales Commissions And Fees, Percentage Of Offering Price Borrowings under secured financings Proceeds from Long-Term Lines of Credit Residential transition loan paydowns Residential Transitional Loan Paydowns Residential Transitional Loan Paydowns Cash Flows From Financing Activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Consolidated Entity, Excluding Consolidated VIE Consolidated Entity, Excluding Consolidated VIE [Member] Financial Instruments [Domain] Financial Instruments [Domain] Derivative assets, at fair value Derivative assets Derivative Asset Trustee Compensation Trustee Plan [Member] Trustee Plan Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount Common shares issued Stock Issued During Period, Value, New Issues UPB Debt Instrument, Unpaid Principal Balance Of Collateral Debt Instrument, Unpaid Principal Balance Of Collateral Related Party Transaction [Table] Related Party Transaction [Table] Title and Position [Axis] Title and Position [Axis] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Unrealized gain on derivatives Derivative, Gain (Loss) on Derivative, Net Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Total Other Income (Loss) Operating Income (Loss) Schedule of Aggregate Distributions Declared Dividends Declared [Table Text Block] Current Fiscal Year End Date Current Fiscal Year End Date Other factors Loans-Held-For Investment, Fair Value Adjustment, Other Factors Gain (Loss) Loans-Held-For Investment, Fair Value Adjustment, Other Factors Gain (Loss) Performance, catch-up, quarterly percentage of adjusted capital Performance Fee, Catch-Up, Quarterly Percentage Of Adjusted Capital Performance Fee, Catch-Up, Quarterly Percentage Of Adjusted Capital Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Derivative [Line Items] Derivative [Line Items] Related Party Transaction [Domain] Related Party Transaction [Domain] Weighted Average Original Life (Months) Weighted Average Life, Months Weighted Average Life, Months Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement Of Income, Extensible List Not Disclosed Flag Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement Of Income, Extensible List Not Disclosed Flag Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement Of Income, Extensible List Not Disclosed Flag Distributions declared on common shares Adjustments to Additional Paid in Capital, Dividends in Excess of Retained Earnings 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] Common stock, dividends (in USD per share) Common Stock, Dividends, Per Share, Declared Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Common stock, issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Beginning balance Ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Schedule of Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] Entity Information [Line Items] Entity Information [Line Items] Due to Adviser, net Due To Advisor Due To Advisor Equity Components [Axis] Equity Components [Axis] Related Party Related Party [Member] Settlement to servicer for funding activity Settlement To Servicer For Funding Activity Settlement To Servicer For Funding Activity Entity Interactive Data Current Entity Interactive Data Current Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Small Business Entity Small Business Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive Income (Loss), Net of Tax, Attributable to Parent OTHER ASSETS AND OTHER LIABILITIES Other Assets And Liabilities Disclosure [Text Block] Other Assets And Liabilities Disclosure Termination Date Trading Arrangement Termination Date Noncontrolling Interest [Table] Noncontrolling Interest [Table] Subsequent Events [Abstract] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Residential Mortgage Loans Residential Mortgage Loans [Member] Residential Mortgage Loans Loan Count SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Number of Loans Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Distribution payable Distribution Payable MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Document Type Document Type 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] Percentage of transaction price Sales Commissions And Fees, Percentage Of Transaction Price Sales Commissions And Fees, Percentage Of Transaction Price Fair Value as of Grant Date Award Grant Date Fair Value Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Subsequent Event [Line Items] Subsequent Event [Line Items] Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Risks and Uncertainties Risks And Uncertainties [Policy Text Block] Risks And Uncertainties Stock repurchase program, early purchase deduction, percent Stock Repurchase Program, Early Purchase Deduction, Percent Of Transaction Price Stock Repurchase Program, Early Purchase Deduction, Percent Of Transaction Price Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Commitments and Contingencies (Note 12) Commitments and Contingencies Total Revenues Revenues Reimbursement payable Organization And Offering, Reimbursement Payable Organization And Offering, Reimbursement Payable Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Performance, annualized hurdle rate Performance Fee, Annualized Hurdle Rate Performance Fee, Annualized Hurdle Rate Shareholder Servicing Fees payable Distribution Fee Payable Distribution Fee Payable Accounts payable and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Changes in unrealized gains (losses) included in earnings related to financial assets still held at the reporting date Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Changes In Unrealized Gain (Loss) Included in Earnings Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Changes In Unrealized Gain (Loss) Included in Earnings Vesting period (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Residential mortgage loans, at fair value Mortgage Loans Receivable, Fair Value Mortgage Loans Receivable, Fair Value Liabilities and Shareholders’ Equity Liabilities and Equity [Abstract] 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] All Award Types Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Level 3 Fair Value, Inputs, Level 3 [Member] Residential mortgage loans, at fair value Residential Mortgage Loans Receivable, Fair Value Residential Mortgage Loans Receivable, Fair Value Supplemental Disclosure of Noncash Investing and Financing Activities: Supplemental Cash Flow Information [Abstract] Accounts payable and other liabilities Total Accounts Payable and Other Liabilities Accounts Payable and Accrued Liabilities Class J Par Value Common Class J Common Class J [Member] Common Class J PEO Name PEO Name Potential purchase value Sale Of Stock, Potential Purchase Value Sale Of Stock, Potential Purchase Value Restricted cash Restricted Cash Paid in cash or vested Directors Fees, Portion Paid In Cash, Value Of Shares Issued Directors Fees, Portion Paid In Cash, Value Of Shares Issued Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Distribution reinvestment Proceeds From Distributions Reinvestment Proceeds From Distributions Reinvestment Entity Tax Identification Number Entity Tax Identification Number Legal Entity [Axis] Legal Entity [Axis] Schedule of Financing Receivable, Past Due Financing Receivable, Past Due [Table Text Block] Other Liability, Related Party [Extensible Enumeration] Other Liability, Related Party [Extensible Enumeration] Cash and cash equivalents and restricted cash, beginning of period Cash and cash equivalents and restricted cash, end of period Total Cash and Cash Equivalents and Restricted Cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Trustee compensation Trustee Compensation Expense Trustee Compensation Expense Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] 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] ORGANIZATION Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Debt Instrument [Axis] Debt Instrument [Axis] Subsequent Event [Table] Subsequent Event [Table] Share-based compensation Share-Based Payment Arrangement, Noncash Expense Schedule of Secured Financing Agreements Schedule of Debt [Table Text Block] Investment, Name [Domain] Investment, Name [Domain] Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] 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] Basic (in USD per share) Earnings Per Share, Basic Performance fee, percentage of core earnings Performance Fee, Percentage Of Core Earnings Performance Fee, Percentage Of Core Earnings Equity, Class of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Measurement Input Type [Axis] Measurement Input Type [Axis] Statistical Measurement [Axis] Statistical Measurement [Axis] Due to related parties Increase (Decrease) in Due to Related Parties Insider Trading Arrangements [Line Items] Award Type Award Type [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accounts receivable Accounts Receivable, after Allowance for Credit Loss, Current Retained earnings (accumulated deficit) Retained Earnings (Accumulated Deficit) Performance fee percentage Performance Fee Percentage, Minimum Threshold Performance Fee Percentage, Minimum Threshold 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] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Shares Common Stock [Member] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Financing and other fees Financing And Other Fees Financing And Other Fees Noncontrolling Interest [Abstract] Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Common Class S, T, D, I, J, And J-2 Common Class S, T, D, I, J, And J-2 [Member] Common Class S, T, D, I, J, And J-2 Loss Severity/ Incidence Measurement Input, Loss Severity [Member] Equity Awards Adjustments Equity Awards Adjustments [Member] Schedule of Shares Issued Schedule of Shares Issued [Table Text Block] Schedule of Shares Issued Total Liabilities and Shareholders’ Equity Liabilities and Equity Prepayment Rate Measurement Input, Prepayment Rate [Member] Employee Stock Option Share-Based Payment Arrangement, Option [Member] Acquisition and funding activities Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Fair Value, Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss), Statement Of Income, Extensible List Not Disclosed Flag Fair Value, Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss), Statement Of Income, Extensible List Not Disclosed Flag Fair Value, Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss), Statement Of Income, Extensible List Not Disclosed Flag Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Fund commitments Mortgage Loans, Committed To Fund Mortgage Loans, Committed To Fund Asset Class [Axis] Asset Class [Axis] RTL-C Repurchase Agreement RTL-C Repurchase Agreement [Member] RTL-C Repurchase Agreement Plan Name [Axis] Plan Name [Axis] Related and Nonrelated Parties [Domain] Related and Nonrelated Parties [Domain] Weighted Average Life (Years) Weighted Average Life (Years) Debt Instrument, Collateral, Weighted Average Life Debt Instrument, Collateral, Weighted Average Life Schedule of Accounts, Notes, Loans and Financing Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Fair Value Debt Securities, Trading Residential transition loans, at fair value Residential Transition Loans Receivable, Fair Value Residential Transition Loans Receivable, Fair Value Tabular List, Table Tabular List [Table Text Block] Organization and Offering Expenses Start-up Activities, Cost Policy [Policy Text Block] Additional paid-in capital Additional Paid in Capital Secured financings, at fair value Secured Financings, At Fair Value Secured Financings, At Fair Value Name Awards Close in Time to MNPI Disclosures, Individual Name 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] General and administrative expenses General and Administrative Expense Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Deduction from early purchase deduction, percent Stock Repurchase Program, Deduction From Early Purchase Deduction, Percent Stock Repurchase Program, Deduction From Early Purchase Deduction, Percent Adjustment to Compensation: Adjustment to Compensation [Axis] Class of Stock [Domain] Class of Stock [Domain] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Residential Transition Loans RTLs Residential Transition Loans [Member] Residential Transition Loans Schedule of Distributions Schedule of Stock by Class [Table Text Block] Credit Facility [Axis] Credit Facility [Axis] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total Assets Assets, Fair Value Disclosure Name Measure Name Common Class D Common Class D [Member] Common Class D Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Receivable from servicer for repayment activity Receivable From Servicer For Repayment Activity Receivable From Servicer For Repayment Activity Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Interest income Interest and Fee Income, Financing Receivable Additional Paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Directors fees cash paid Directors Fees, Portion Paid In Cash Directors Fees, Portion Paid In Cash Offering and organizational payables Offering And Organizational Costs, Payable Offering And Organizational Costs, Payable Common Class J And J-2 Common Class J And J-2 [Member] Common Class J And J-2 Accrued interest receivable Interest Receivable Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Share repurchase program, period Share Repurchase Program, Minimum Period Prior To Repurchase Share Repurchase Program, Minimum Period Prior To Repurchase Realized and unrealized gain on derivatives Realized and unrealized gain on derivatives Gain (Loss) on Derivative Instruments, Net, Pretax Share-based Compensation Compensation Related Costs, Policy [Policy Text Block] VIE's percentage Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage Company Selected Measure Amount Company Selected Measure Amount Financial Asset, Aging [Axis] Financial Asset, Aging [Axis] Investments, Debt and Equity Securities [Abstract] Realization of cash flows Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) Outstanding floating-rate secured financings Derivative Notional Amount As A Percentage Of Hedged Asset Or Liability Derivative Notional Amount, Hedged Asset Or Liability As A Percentage Residential mortgage loan paydowns Residential Mortgage Loan Paydowns Residential Mortgage Loan Paydowns Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Realization of cash flows Financing Receivable, Realized Gain (Loss) On Cash Flows Financing Receivable, Realized Gain (Loss) On Cash Flows Adjustments to Reconcile Net Income to Net Cash from Operating Activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Noncash Item [Abstract] Audit Committee Chairman Audit Committee Chairman [Member] Audit Committee Chairman Award Timing Method Award Timing Method [Text Block] Consolidation Consolidation, Policy [Policy Text Block] Net increase in cash and cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Net Income by Class of Common Share Net Income (Loss) Attributable to Parent [Abstract] Variable Interest Entity, Primary Beneficiary Variable Interest Entity, Primary Beneficiary [Member] Net Income and Comprehensive Income Net income Net income Net Income (Loss) Attributable to Parent Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Bridge Bridge Loan [Member] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Schedule of Accounts Receivable and Other Assets Schedule of Other Assets [Table Text Block] Revenues Revenues [Abstract] Construction/interest holdbacks and draws Financing Receivable, Construction, Holdbacks, And Draws Financing Receivable, Construction, Holdbacks, And Draws SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation and Significant Accounting Policies [Text Block] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract]