Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Hotel Hotel [Member] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Schedule of Financial Covenant Compliance Schedule Of Financial Covenant Compliance [Table Text Block] Schedule Of Financial Covenant Compliance Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Short-term Debt, Type Short-Term Debt, Type [Axis] Title of 12(b) Security Title of 12(b) Security Subsequent Events Subsequent Event [Member] Carrying value Reported Value Measurement [Member] Wtd. avg. spread Wtd. avg. credit spread Debt, Weighted Average Interest Rate Adjustment to Compensation, Amount Adjustment to Compensation Amount Pledged Status Pledged Status [Axis] Financial Instrument Financial Instrument [Axis] Schedule of Estimated Future Amortization Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense [Table Text Block] Minimum written notice Temporary Equity, Minimum Written Notice Temporary Equity, Minimum Written Notice Number of loans redeemed Number Of Loans Redeemed Number Of Loans Redeemed Discount rate Financing Receivable, Measurement Input Financing Receivable, Measurement Input Current-period realized loss on loan sales and REO conversions, year four Mortgage Loans On Real Estate, Realized Loss On Sales And Other Real Estate Conversion, Year Four, Originated, Three Years Before Current Fiscal Year Mortgage Loans On Real Estate, Realized Loss On Sales And Other Real Estate Conversion, Year Four, Originated, Three Years Before Current Fiscal Year 2 Risk Rating Two [Member] Risk rating two. Secured Credit Agreements and Secured Credit Facilities Secured Credit Agreements And Secured Credit Facilities [Member] Secured credit agreements and secured credit facilities. Origination and acquisition of loans held for investment Payments for (Proceeds from) Loans Receivable Excise tax percentage Excise Tax Percentage Excise tax percentage. Leasing commissions Leasing Commissions [Member] Leasing Commissions Consolidated Entities Consolidated Entities [Axis] Shares acquired, average cost (in USD per share) Shares Acquired, Average Cost Per Share Management Agreement, Termination Fee Management Agreement, Termination Fee [Member] Management Agreement, Termination Fee Allowance for credit losses Allowance For Credit Losses [Member] Allowance For Credit Losses Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Principal repayments of loans held for investment Proceeds from Principal Repayment, Loan and Lease, Held-for-Investment 2030 Share-Based Payment Arrangement, Tranche Four [Member] Share-Based Payment Arrangement, Tranche Four Depreciation and amortization Other Depreciation and Amortization Nonaccrual, number of loans Financing Receivable, Nonaccrual, Number Of Loans Financing Receivable, Nonaccrual, Number Of Loans Accumulated depreciation Asset Acquisition, Real Estate Owned, Accumulated Depreciation Asset Acquisition, Real Estate Owned, Accumulated Depreciation Related Party Transactions Related Party Transactions Disclosure [Text Block] Consolidated Entities Consolidated Entities [Domain] Real Estate Owned [Line Items] Real Estate Owned [Line Items] Real Estate Owned [Line Items] Secured financing agreements, net Secured Credit Agreements And Secured Revolving Credit Facilty [Member] Secured Credit Agreements And Secured Revolving Credit Facilty Amortized cost basis of loans by origination, prior Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Common stock, par value (in USD per share) Common Stock, Par or Stated Value Per Share Asset Acquisition Asset Acquisition [Axis] Beginning balance (in shares) Ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number 2027 Share-Based Payment Arrangement, Tranche One [Member] Allowance for credit losses excluded Financing Receivable, Allowance For Credit Loss, Excluding Accrued Interest And Off-Balance-Sheet, Credit Loss, Liability, Excluded Component Financing Receivable, Allowance For Credit Loss, Excluding Accrued Interest And Off-Balance-Sheet, Credit Loss, Liability, Excluded Component Principal balance of collateral UPB of collateral Debt Instrument, Collateral Amount Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Collaborative Arrangement and Arrangement Other than Collaborative Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Carrying value Securitized Debt Obligation Carrying Value Securitized Debt Obligation Carrying Value Number of reportable segments Number of Reportable Segments Land and land improvements Real estate owned - Land and land improvements Asset Acquisition, Land And Land Improvements Asset Acquisition, Land And Land Improvements Wtd. avg. term Weighted Average Term Weighted Average Term Short-term Debt, Type Short-Term Debt, Type [Domain] Concentration Risk [Table] Concentration Risk [Table] Entity Address, City or Town Entity Address, City or Town Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Class of Financing Receivable Class of Financing Receivable [Domain] Management Agreement, Incentive Compensation Management Agreement, Incentive Compensation [Member] Management Agreement, Incentive Compensation Receivables [Abstract] Receivables [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] TRTX 2025-FL7 TRTX 2025-FL7 [Member] TRTX 2025-FL7 Accrued PIK interest Paid In Kind Interest Accrued Paid-in-kind interest accrued. Intangible assets, net Intangible Asset, Finite-Lived, after Accumulated Amortization Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Income Tax [Table] Income Tax [Table] Income tax. Senior loans Senior Loans [Member] Income Tax [Line Items] Income Tax [Line Items] Income tax. Level II Fair Value, Inputs, Level 2 [Member] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] 2029 Lessor, Operating Lease, Payment to be Received, Year Three Days: 90 or more Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Specific reserve SEC Schedule, 12-09, Reserve, Specific Reserve [Member] SEC Schedule, 12-09, Reserve, Specific Reserve Citi Citi [Member] Citi Total other expenses Other Expenses Subsequent Event Type Subsequent Event Type [Axis] Debt covenant, maximum total debt to total assets ratio Debt Instrument, Covenant, Maximum Total Debt To Total Assets Ratio Debt Instrument, Covenant, Maximum Total Debt To Total Assets Ratio Debt Instrument [Table] Schedule of Long-Term Debt Instruments [Table] Outstanding principal balance Securitized Debt Obligations Securitized Debt Obligations 2029 Below Market Lease, Amortization Income, Year Three Use of Estimates Use of Estimates, Policy [Policy Text Block] Related Party Related and Nonrelated Parties [Axis] Schedule of Paid-in-Kind Interest Schedule Of Paid In Kind Interest Table [Table Text Block] Schedule of paid-in-kind interest. Mixed-Use Mixed Use Properties [Member] Mixed use properties. Supplemental disclosure of non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Allowance for credit losses Beginning balance Ending balance Carrying value Beginning balance, allowance for credit loss Ending balance, allowance for credit loss Loans held for investment Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Redemption price (in USD per share) Temporary Equity, Redemption Price Per Share SEC Schedule, 12-09, Valuation Allowances and Reserves SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Document Period End Date Document Period End Date Dividend payable (in USD per share) Dividends Payable, Amount Per Share Total allowance for credit losses Financing Receivable, Allowance For Credit Loss, Excluding Accrued Interest And Off-Balance-Sheet, Credit Loss, Liability Financing Receivable, Allowance For Credit Loss, Excluding Accrued Interest And Off-Balance-Sheet, Credit Loss, Liability Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding Debt face amount Commitment amount Commitment amount Debt Instrument, Face Amount Credit facility term Debt Instrument, Term Number of secured credit agreements Number Of Secured Credit Agreements Number of secured credit agreements. Tangible net worth Debt Instrument, Covenant, Tangible Net Worth Debt Instrument, Covenant, Tangible Net Worth Amortized cost of collateral Debt Instrument Amortized Cost Of Collateral, Excluding Interest Receivable Debt Instrument Amortized Cost Of Collateral, Excluding Interest Receivable Entity Shell Company Entity Shell Company Other real estate owned investments held by sub real estate investment trust Real Estate Owned, Held By Subsidiary Real Estate Owned, Held By Subsidiary Debt Instrument Interest Rate At 7.0% Debt Instrument Interest Rate At 7.0% [Member] Debt Instrument Interest Rate At 7.0% Mortgage loans payable Mortgage loans payable Mortgages [Member] Advances on loans held for investment Payments For Advances On Loans Held For Investment Payments for advances on loans held for investment. Earnings per Share Earnings Per Share [Text Block] Commercial Real Estate Loans Commercial Real Estate Loans [Member] Commercial real estate loans. Earnings Per Share [Abstract] Earnings Per Share [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Term extension Debt Instrument, Extension Term Line Of Credit Facility, Term Extension Total liabilities Total liabilities Liabilities Trading Symbol Trading Symbol One First Mortgage Loan One First Mortgage Loan [Member] One First Mortgage Loan Measurement Input, Discount Rate Measurement Input, Discount Rate [Member] Schedule Of Repurchase Agreement Counterparty [Table] Repurchase Agreement, Counterparty [Table] Number of asset-specific financing arrangements Number Of Asset-Specific Financing Arrangements Number Of Asset-Specific Financing Arrangements Allowance for credit losses Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] Management fees Management Agreement [Member] Management agreement. Percentage of loans open to repayment by borrower without penalty Percentage Of Loans Open To Repayment By Borrower Without Penalty Percentage of loans open to repayment by borrower without penalty. Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Company Selected Measure Name Company Selected Measure Name Number of loans Count (in loans) Number Of Loans Number of loans. Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Fair Value Measurements Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block] Concentration Risk [Line Items] Concentration Risk [Line Items] Unfunded loan commitments Unfunded commitment Unfunded Commitments Related To Loans Receivable Unfunded commitments related to loans receivable. Amortized cost basis of loans by origination, year one Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Credit Facility Credit Facility [Domain] Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Financing Receivable, nonaccrual Financing Receivable, Nonaccrual Debt covenant, minimum cash balance required Debt Covenant, Minimum Cash Balance Required Debt Covenant, Minimum Cash Balance Required Goldman Sachs Goldman Sachs Bank Goldman Sachs Bank [Member] Goldman Sachs Bank. Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Depreciable Life Property, Plant, and Equipment, Useful Life Collaborative Arrangement and Arrangement Other than Collaborative Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Dividends payable Dividends declared, not paid Dividends Payable Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Earnings per share Earnings Per Share, Basic and Diluted EPS [Abstract] Earnings Per Share, Basic and Diluted EPS Tax Credit Carryforward, Name [Domain] Tax Credit Carryforward, Name [Domain] Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Award Timing Predetermined Award Timing Predetermined [Flag] 6.25% Series C Cumulative Redeemable Preferred Stock Six Point Two Five Percentage Series C Cumulative Redeemable Preferred Stock [Member] Six point two five percentage series C cumulative redeemable preferred stock. Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Amortization of stock compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Level I Fair Value, Inputs, Level 1 [Member] Number of loans sold Number Of Loans Sold Number Of Loans Sold Loans accrued interest income Loans Accrued Interest Income Loans accrued interest income. Allowance for credit losses on unfunded loan commitments: Off-Balance-Sheet, Credit Loss, Liability [Roll Forward] Retired common stock Stock Repurchased and Retired During Period, Value Class of Financing Receivable Class of Financing Receivable [Axis] Servicing and asset management fees Servicing And Asset Management Fees Servicing and asset management fees. Preferred stock, par value (in USD per share) Preferred Stock, Par or Stated Value Per Share Fair value of financial liabilities Long-Term Debt, Fair Value Depreciation and amortization Depreciation Vesting Vesting [Domain] Plan Name [Domain] Plan Name [Domain] Debt-to-Equity Debt Instrument, Covenant, Maximum Debt To Equity Ratio Debt Instrument, Covenant, Maximum Debt To Equity Ratio Collateral Collateralized Securities [Member] Schedule of Overall Statistics for Loan Held for Investment Portfolio Schedule Of Loan Portfolio Table [Table Text Block] Schedule of loan portfolio. Building and building improvements Real estate owned - Building and building improvements Asset Acquisition, Building And Building Improvements Asset Acquisition, Building And Building Improvements Schedule of Estimated Future Amortization Below Market Lease, Future Amortization Income [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Realized loss on conversion Real Estate Owned, Amount of Loss at Acquisition Debt Instrument, Name Debt Instrument, Name [Domain] Accrued PIK interest Accrued PIK interest Financing Receivable, Excluding Accrued Interest, Paid-In -Kind Interest Financing Receivable, Excluding Accrued Interest, Paid-In -Kind Interest Outstanding borrowings Long-Term Line of Credit Expiration Date Trading Arrangement Expiration Date 2030 Long-Term Debt, Maturity, Year Four Significant Accounting Policies [Table] Significant Accounting Policies [Table] Significant accounting policies. Loans past due, trigger percentage Financing Receivable, Excluding Accrued Interest, Past Due, Trigger, Percentage Financing Receivable, Excluding Accrued Interest, Past Due, Trigger, Percentage Building Building [Member] Affiliated Entity Affiliated Entity [Member] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Thereafter Lessor, Operating Lease, Payment to be Received, after Year Five Debt issuance discount Debt Instrument, Unamortized Discount (Premium), Net Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Related Party Transaction Related Party Transaction [Axis] Total unrecognized compensation cost relating to unvested share-based compensation arrangements Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount 2027 Lessor, Operating Lease, Payment to be Received, Year One Change of Control Event Change Of Control Event [Member] Change of control event member. Number of loan investments Number Of Loan Investments Number Of Loan Investments Percentage multiplied by stockholders equity included in incentive management fee Percentage Multiplied By Stockholders Equity Included In Incentive Management Fee Percentage multiplied by stockholders' equity (included in incentive management fee). Investment Portfolio Financing Arrangements Corporate Financing Arrangements Debt Disclosure [Text Block] Deferred financing costs Deferred financing costs Debt Issuance Costs, Net Building improvements Building Improvements [Member] Quarterly principal due, percent Debt Instrument, Periodic Payment, Quarterly Principal Due, Percentage Debt Instrument, Periodic Payment, Quarterly Principal Due, Percentage PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Secured Debt Secured Debt [Member] Loan extinguishment upon conversion to REO SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Foreclosure Dividends, common stock, cash Dividends, Common Stock, Cash Wtd. avg. interest rate Debt Instrument, Interest Rate, Stated Percentage Total stockholders' equity Beginning Balance Ending Balance Equity, Attributable to Parent Financing receivables modified in the period as a percentage of total financing receivables Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage Light Transitional Light Transitional Loan [Member] Light transitional loan. Real Estate Real Estate [Domain] Real Estate Owned, Disclosure of Detailed Components [Abstract] Real Estate Owned, Disclosure of Detailed Components [Abstract] Assets Assets [Abstract] Tangible net worth, amount of equity Debt Instrument, Covenant, Tangible Net Worth, Amount Of Equity Debt Instrument, Covenant, Tangible Net Worth, Amount Of Equity Estimating credit losses in loan portfolio (in methods) Financing Receivable, Credit Loss, Number Of Methods Financing Receivable, Credit Loss, Number Of Methods Schedule of Amortized Cost and Results of Internal Risk Rating Review Performed for Loans Held for Investment Portfolio Financing Receivable Credit Quality Indicators [Table Text Block] Professional fees Professional Fees Insider Trading Policies and Procedures [Line Items] After 180 days from initial borrowing After One Eighty Days From Initial Borrowing [Member] After one eighty days from initial borrowing. Fixed Rate Contiguous Mezzanine Loans Fixed Rate Contiguous Mezzanine Loans [Member] Fixed Rate Contiguous Mezzanine Loans Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Other revenue from REO Real Estate Owned, Other Revenue From REO Real Estate Owned, Other Revenue From REO Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Office Property Mortgage Loan Office Property Mortgage Loan [Member] Office Property Mortgage Loan Number of operating segments Number of Operating Segments Entity Central Index Key Entity Central Index Key Weighted average maturity period Loans Held For Investment Weighted Average Maturity Period Loans held for investment, weighted average maturity period. Participating securities share in earnings Dividends, Common Stock, Stock Premium, discount and origination fees Premium Discount And Origination Fees Premium discount and origination fees. Accrued of common stock for dividends (in shares) Dividends Common Stock Paid-in-Kind Shares Dividends common stock paid-in-kind, shares. 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] Minimum cash reserve percentage Debt Covenant, Aggregate Recourse Indebtedness Multiplier Debt Covenant, Aggregate Recourse Indebtedness Multiplier 2026 Long-Term Debt, Maturity, Remainder of Fiscal Year TRTX 2025-FL7 F L 7 Notes [Member] F L 7 Notes Ownership Ownership [Axis] Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Axis] 5 Risk Rating Five [Member] Risk rating five. Dividends, preferred stock, cash Dividends, Preferred Stock, Cash Dividend rate (in percent) Preferred Stock, Dividend Rate, Percentage Current-period realized loss on loan sales and REO conversions, year three Mortgage Loans On Real Estate, Realized Loss On Sales And Other Real Estate Conversion, Year Three, Originated, Two Years Before Current Fiscal Year Mortgage Loans On Real Estate, Realized Loss On Sales And Other Real Estate Conversion, Year Three, Originated, Two Years Before Current Fiscal Year Realized loss on loan write-offs, loan sales, and REO conversions Current-period realized loss on loan write-offs related to REO conversions Mortgage Loans On Real Estate, Realized Loss On Sales And Other Real Estate Conversions Mortgage Loans On Real Estate, Realized Loss On Sales And Other Real Estate Conversions Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Management fee payable per quarter Management Fee Payable Per Quarter Management fee payable per quarter. All Individuals All Individuals [Member] Dividends paid Payments of Dividends Management fee payable per annum Management Fee Payable Per Annum Management fee payable per annum. Collateralized Loan Obligation Proceeds Held at Trustee Collateralized Loan Obligation Proceeds Held At Trustee Policy [Policy Text Block] Collateralized loan obligation proceeds held at trustee. Unrecognized compensation cost, recognition period Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Thereafter Long-Term Debt, Maturity, After Year Four Long-Term Debt, Maturity, After Year Four Statement [Line Items] Statement [Line Items] Total assets Total assets Assets Debt Instrument Interest Rate At 7.5% Debt Instrument Interest Rate At 7.5% [Member] Debt Instrument Interest Rate At 7.5% Interest expense Interest expense Interest Expense, Operating Subordinated and mezzanine loans Subordinated And Mezzanine Loans [Member] Subordinated and mezzanine loans. Internal Credit Assessment Internal Credit Assessment [Domain] Percentage of annual base management fee Percentage Of Management Fee On Stockholders Equity Percentage of management fee on stockholders equity. Stock-based Compensation Share-Based Payment Arrangement [Text Block] PEO PEO [Member] Commercial Mortgage Loans Commercial Mortgage Loans [Member] Commercial mortgage loans. Beginning Balance (in shares) Ending Balance (in shares) Shares, Outstanding 2028 Long-Term Debt, Maturity, Year Two Maximum redeemable window Temporary Equity, Maximum Redeemable Window Temporary Equity, Maximum Redeemable Window HSBC Facility HSBC Facility [Member] HSBC Facility Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Accumulated deficit Retained Earnings [Member] Revolving Credit Facility Revolving Credit Facility [Member] Loans held for investment, aggregate unpaid principal balance percentage Loans Held For Investment Aggregate Unpaid Principal Balance Percentage Loans held for investment, aggregate unpaid principal balance percentage. Unamortized loan fees included in Loans Held for Investment Unamortized deferred financing costs Financing Receivable, Unamortized Loan Cost (Fee) Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Earnings per common share, diluted (in USD per share) Earnings Per Share, Diluted Debt Instrument, Interest Rate at 7.1% Debt Instrument Interest Rate At 7.1% [Member] Debt Instrument Interest Rate At 7.1% Internal Credit Assessment Internal Credit Assessment [Axis] Variable lease payments Operating Lease, Variable Lease Income Credit loss (expense) benefit, net Financing Receivable, Credit Loss, Expense (Reversal) Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Intangible Asset, Finite-Lived [Line Items] Intangible Asset, Finite-Lived [Line Items] Ownership Ownership [Domain] Amortized cost basis of loans by origination, year four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Loans Held for Investment Financing Receivable, Held-for-Investment [Policy Text Block] Liquidation preference (in USD per share annually) Temporary equity liquidation preference per share annually Temporary equity liquidation preference per share annually. Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Debt Instrument Interest Rate At 6.9% Debt Instrument Interest Rate At 6.9% [Member] Debt Instrument Interest Rate At 6.9% Manhattan, NY Manhattan, NY [Member] Manhattan, NY Stock repurchased value Stock Repurchased During Period, Value Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Accrued interest payable Increase (Decrease) in Interest Payable, Net Reinvestment period Debt Instrument, Reinvestment Period Debt Instrument, Reinvestment Period Weighted average minimum term Lessor, Operating Lease, Term of Contract Schedule of Future Principal Payments Schedule of Maturities of Long-Term Debt [Table Text Block] Other income, net Noninterest Income, Other Cash escrowed Escrow Deposit Multifamily Multifamily [Member] Payment of deferred financing costs Payment For Proceeds From Financing Costs Payment for (proceeds from) financing costs. Related Party Transaction Related Party Transaction [Domain] TPG Capital BD, LLC T P G Capital B D L L C [Member] Tpg capital bd, llc. Collateral Held Collateral Held [Axis] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Schedule of Activity in Allowance for Credit Losses for Loans Held for Investment Financing Receivable, Allowance for Credit Loss [Table Text Block] Common stock, issued (in shares) Common Stock, Shares, Issued Arlington Heights, IL Arlington Heights, IL [Member] Arlington Heights, IL Accounts receivable Increase (Decrease) in Accounts Receivable Class Of Stock [Line Items] Class of Stock [Line Items] TRTX 2022-FL5, Loans TRTX 2022-FL5, Loans [Member] TRTX 2022-FL5, Loans Undistributed net income attributable to common stockholders Undistributed Earnings (Loss) Available to Common Shareholders, Basic Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Recourse guarantee percentage Recourse Guarantee Percentage Recourse guarantee percentage. Gain on sale of real estate owned, net Gain on sale of real estate owned, net Gains (Losses) on Sales of Investment Real Estate Real Estate Owned [Table] Real Estate Owned [Table] Real Estate Owned. Office Property Office Property [Member] Office Property Total loan commitment Loan commitment Loan Commitment Principal Amount Loan commitment principal amount. Rental property operating expenses Real Estate Owned, Operating Expense Real Estate Owned, Operating Expense Termination Date Trading Arrangement Termination Date Plano, TX Plano, TX [Member] Plano, TX Subsequent Events [Abstract] Subsequent Events [Abstract] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] U.S. federal corporate tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] TRTX 2025-FL6 F L 6 Notes [Member] F L 6 Notes Line of Credit Facility, Lender Line of Credit Facility, Lender [Domain] Capital expenditures related to real estate owned Real Estate Owned, Capital Expenditures Real Estate Owned, Capital Expenditures Fair Value as of Grant Date Award Grant Date Fair Value Capital loss carryforward Tax Credit Carryforward, Amount Above-market lease intangibles, net Asset Acquisition, Above-Market Lease Intangibles Asset Acquisition, Above-Market Lease Intangibles Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Remaining authorized, amount Share Repurchase Program, Remaining Authorized, Amount 4 Risk Rating Four [Member] Risk rating four. Arrangement Duration Trading Arrangement Duration Liquidation preference (in USD per share) Temporary Equity, Liquidation Preference Per Share Unamortized premium (discount) and loan origination fees, net Financing Receivable, Unamortized Loan Cost (Fee) and Purchase Premium (Discount) Taxable income distribution percentage Temporary Equity Taxable Income Percentage Temporary equity taxable income percentage. Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Other revenue Noninterest Income, Other [Abstract] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Total intangible assets Intangible Asset, Finite-Lived, before Accumulated Amortization Collateral loan investments Collateral Loan And Real Estate Owned Investments [Member] Collateral Loan And Real Estate Owned Investments Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount After 135 days from initial borrowing After One Thirty Five Days from Initial Borrowing [Member] After one thirty five days from initial borrowing. Financing Structured Finance [Member] Increase (decrease) in allowance for credit loss for macroeconomic events Financing Receivable Allowance For Credit Loss Increase (Decrease) From Macroeconomic Events Financing Receivable Allowance For Credit Loss Increase (Decrease) From Macroeconomic Events Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Share vesting installment period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Intangible Asset, Finite-Lived, Class Intangible Asset, Finite-Lived, Class [Domain] West West [Member] West. Schedule of Fair Value of Financial Assets and Liabilities Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Award Type Award Type [Domain] Weighted average all-in yield Financing Receivable, before Allowance for Credit Loss, Average Yield Level 3 Inputs Level III Fair Value, Inputs, Level 3 [Member] Asset pledged as collateral Asset Pledged as Collateral [Member] 2027 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One Geographical Geographical [Axis] Restricted cash Restricted Cash Total Lessor, Operating Lease, Payment to be Received Other assets Other assets Other Assets Days: 30-59 Financial Asset, 30 to 59 Days Past Due [Member] Legal Entity Legal Entity [Axis] Cash, cash equivalents and restricted cash at beginning of period Cash, cash equivalents and restricted cash at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Schedule of Finite-Lived Intangible Assets [Table] Intangible Asset, Finite-Lived [Table] Accrued PIK interest Accrued Paid-In-Kind Interest Accrued Paid-In-Kind Interest Non-NEOs Non-NEOs [Member] 2028 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two Credit Losses Credit Loss, Financial Instrument [Policy Text Block] Schedule of Borrowings and Corresponding Collateral Schedule of Debt Schedule of Debt [Table Text Block] Cash Asset Acquisition, Cash Asset Acquisition, Cash South South [Member] South. 2027 Long-Term Debt, Maturity, Year One Long-term Debt, Type Long-Term Debt, Type [Domain] Schedule of Share-based Compensation Arrangements by Share-based Payment Award Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block] Payments to retire common stock Payments for Repurchase of Common Stock Statistical Measurement Statistical Measurement [Axis] Award Type Award Type [Axis] 2026 (remaining) Lessor, Operating Lease, Payment to be Received, Remainder of Fiscal Year Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accumulated deficit Retained Earnings (Accumulated Deficit) Allowance for credit losses increase due to loan origination Financing Receivable, Excluding Accrued Interest, Allowance For Credit Loss, Loan Originated Financing Receivable, Excluding Accrued Interest, Allowance For Credit Loss, Loan Originated Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Proceeds from secured financing agreements Proceeds from Issuance of Secured Debt Common Stock, par value $0.001 per share Common Stock Common Stock [Member] Total loans past due Financial Asset, Past Due [Member] Total liabilities and stockholders' equity Liabilities and Equity % of loan UPB Percentage Of Loans And Leases Receivable Unpaid Principal Balance Percentage of loans and leases receivable unpaid principal balance. Employee Stock Option Share-Based Payment Arrangement, Option [Member] TRTX 2025-FL6 TRTX 2025-FL6 [Member] TRTX 2025-FL6 Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category [Axis] Related Party Related and Nonrelated Parties [Domain] Tabular List, Table Tabular List [Table Text Block] Vesting Vesting [Axis] Amount of redeemed or repurchased equity Debt Instrument, Covenant, Amount Of Redeemed Or Repurchased equity Debt Instrument, Covenant, Amount Of Redeemed Or Repurchased equity Additional paid-in-capital Additional Paid in Capital 2029 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three 2026 (remaining) Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year 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] Allowance for credit losses on loan commitments Allowance For Credit Losses On Loan Commitments Allowance for credit losses on loan commitments. Collateralized loan obligation proceeds held at trustee Collateralized Loan Obligation Proceeds Held At Trustee Collateralized loan obligation proceeds held at trustee. Long-Lived Asset, Class Long-Lived Asset, Class [Domain] Cash assumed from conversion of loans held for investment to real estate owned Proceeds From Loan, Held-For-Investment Converted To Real Estate Owned Proceeds From Loan, Held-For-Investment Converted To Real Estate Owned Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Conversion to real estate owned of loans held for investment - REO Real Estate Owned, Transfer to Real Estate Owned Leasing commissions, net Asset Acquisition, Leasing Commissions Asset Acquisition, Leasing Commissions Property, Plant, and Equipment [Table] Property, Plant, and Equipment [Table] Preferred stock Preferred Stock, Value, Issued Amortized cost of collateral Debt Instrument Amortized Cost Of Collateral Debt instrument amortized cost of collateral. Adjustment to Compensation: Adjustment to Compensation [Axis] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activity Interest Coverage Debt Instrument, Covenant, Minimum Interest Coverage Ratio Debt Instrument, Covenant, Minimum Interest Coverage Ratio Participating securities' share in earnings Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Days: 60-89 Financial Asset, 60 to 89 Days Past Due [Member] Credit Facility Credit Facility [Axis] One Mortgage Loans One Mortgage Loans [Member] One Mortgage Loans Amortized cost Financing Receivable, Excluding Accrued Interest, Before Allowance For Credit Loss [Roll Forward] Financing Receivable, Excluding Accrued Interest, Before Allowance For Credit Loss Name Measure Name Incentive management fee Incentive Management [Member] Incentive Management. Pay vs Performance Disclosure [Line Items] Minimum cash liquidity Debt Instrument, Covenant, Minimum Cash Liquidity Debt Instrument, Covenant, Minimum Cash Liquidity Debt Debt [Member] Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Domain] Debt Instrument [Line Items] Debt Instrument [Line Items] Net counterparty exposure Debt Instrument Counterparty Amount At Risk Debt instrument counterparty amount at risk. Current portion of income tax expense Current Federal, State and Local, Tax Expense (Benefit) Additional paid-in-capital Additional Paid-in Capital [Member] Accrued paid in kind interest outstanding Beginning balance Ending balance Paid In Kind Interest Outstanding Paid-in-kind interest outstanding. Non-Accrual Loans and Loans Held for Sale Financing Receivable [Policy Text Block] 2031 Lessor, Operating Lease, Payment to be Received, Year Five Accrued interest and fees receivable Interest Receivable Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Real estate owned properties acquired (in properties) Asset Acquisition, Number Of Properties Asset Acquisition, Number Of Properties Accrued deferred financing costs Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction Company Selected Measure Amount Company Selected Measure Amount Related party transaction, calendar quarters (in calendar quarters) Related Party Transaction, Number Of Calendar Quarters Related Party Transaction, Number Of Calendar Quarters Accounts and Financing Receivables [Table] Accounts and Financing Receivables [Table] Post-IPO Management Agreement Post I P O Management Agreement [Member] Post-IPO management agreement. Loan repayment principal amount Loan Repayment Principal Amount Loan repayment principal amount. Sale of real estate owned Proceeds from Sale, Real Estate, Held-for-Investment Repurchase Agreement Counterparty [Line Items] Repurchase Agreement Counterparty [Line Items] Non-PEO NEO Non-PEO NEO [Member] Number of loans modified during the period Financing Receivable, Number Of Loans Modified During The Period Financing Receivable, Number Of Loans Modified During The Period Award Timing Method Award Timing Method [Text Block] Loan extinguishment upon conversion to REO Loan Extinguishment Upon Conversion to Real Estate Owned Loan Extinguishment Upon Conversion to Real Estate Owned Net change in cash, 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] 2028 Lessor, Operating Lease, Payment to be Received, Year Two 2029 Share-Based Payment Arrangement, Tranche Three [Member] Net income Net income Net income Net Income (Loss) Attributable to Parent Long-term Debt, Type Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Bridge Bridge Loan [Member] Capital expenditures related to real estate owned Payment for Acquisition, Real Estate, Held-for-Investment Above-market lease intangibles Above Market Leases [Member] Restatement Determination Date: Restatement Determination Date [Axis] Moderate Transitional Moderate Transitional Loan [Member] Moderate transitional loan. Number of loans converted to REO and from asset specific financing to mortgage loans Number Of Loans Converted To Real Estate Owned, And Converted From Asset-Specific Financing To Mortgage Loan Number Of Loans Converted To Real Estate Owned, And Converted From Asset-Specific Financing To Mortgage Loan Net income (loss) from REO Profit (Loss) from Real Estate Operations Loans originated and acquired Loans originated and acquired Financing Receivable, Excluding Accrued Interest, Additions Financing Receivable, Excluding Accrued Interest, Additions Schedule of Information Related to Secured Credit Agreements Schedule Of Information Related To Secured Credit Agreements Table [Table Text Block] Schedule of information related to secured credit agreements. Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Wells Fargo Wells Fargo Wells Fargo Bank [Member] Wells Fargo Bank. Weighted average number of common shares outstanding Weighted Average Number of Shares Outstanding, Diluted [Abstract] Total Debt to Total Assets Debt Instrument, Covenant, Maximum Debt To Asset Ratio Debt Instrument, Covenant, Maximum Debt To Asset Ratio Asset Acquisition [Table] Asset Acquisition [Table] Statistical Measurement Statistical Measurement [Domain] Cash and Cash Equivalents Cash and Cash Equivalents, Unrestricted Cash and Cash Equivalents, Policy [Policy Text Block] Unpaid principal balance refinanced Financing Receivable, Unpaid Principal Balance Financing Receivable, Unpaid Principal Balance Investment Portfolio Financing Arrangements Investment Portfolio Financing Arrangements [Member] Investment Portfolio Financing Arrangements Document Fiscal Year Focus Document Fiscal Year Focus Shares of common stock expected to vest (in shares) Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Expected To Vest In Period Share based compensation arrangement by share based payment award, number of shares expected to vest in period. Life Science Life Science [Member] Life Science. Common stock Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Underwriting discount and commissions Investment Banking, Advisory, Brokerage, and Underwriting Fees and Commissions Mortgage loans payable, net Asset Acquisition, Mortgage Loan Payable, Net Asset Acquisition, Mortgage Loan Payable, Net Common stock ($0.001 par value per share; 302,500,000 and 302,500,000 shares authorized, respectively; 75,826,954 and 78,318,722 shares issued and outstanding, respectively) Common Stock, Value, Issued SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category [Domain] Schedule of Long-Term Debt Instruments Schedule of Long-Term Debt Instruments [Table Text Block] 2026 (remaining) Below Market Lease, Amortization Income, Remainder of Fiscal Year Line of Credit Line of Credit [Member] Restatement Determination Date Restatement Determination Date Schedule of Secured Credit Agreements Secured by Mortgage Loan Investments, CRE Debt Securities and Counterparty Concentration Risks Summary Of Characteristics Of Secured Credit Facilities Tables [Table Text Block] Summary of characteristics of secured credit facilities. In-place lease intangibles Leases, Acquired-in-Place [Member] Loans Held for Investment and the Allowance for Credit Losses Financing Receivables [Text Block] Issuance price percentage Debt Instrument, Issuance Price, Percentage Debt Instrument, Issuance Price, Percentage After 90 days from initial borrowing After Ninety Days From Initial Borrowing [Member] After ninety days from initial borrowing. Amendment Flag Amendment Flag Percentage of quarterly base management fee Percentage Of Management Fee On Stockholders Equity Per Quarter Percentage of management fee on stockholders equity per quarter. Management Agreement, Incentive Compensation From Earnings Management Agreement, Incentive Compensation From Earnings [Member] Management Agreement, Incentive Compensation From Earnings Industrial Industrial [Member] Industrial. Current-period realized loss on loan sales and REO conversions, prior Mortgage Loans On Real Estate, Realized Loss On Sales And Other Real Estate Conversion, Originated More Than Five Years Before Current Fiscal Year Mortgage Loans On Real Estate, Realized Loss On Sales And Other Real Estate Conversion, Originated More Than Five Years Before Current Fiscal Year Unfunded Loan Commitments Off-Balance-Sheet Credit Exposure, Policy [Policy Text Block] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Days to extended maturity Debt Instrument Counterparty Extended Maturity Days Debt instrument counterparty extended maturity days. Entity Address, State or Province Entity Address, State or Province Series C Preferred Stock Series C Preferred Stock [Member] PEO Total Compensation Amount PEO Total Compensation Amount Financial assets Assets, Fair Value Disclosure [Abstract] Depreciation and amortization Real Estate Owned, Depreciation And Amortization Real Estate Owned, Depreciation And Amortization Accrued expenses and other liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Preferred Stock, Undefined Class Preferred Stock Undefined Class [Member] Preferred stock undefined class. Basic (in shares) Weighted average common shares outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Preferred stock dividends and participating securities' share in earnings Preferred Stock Dividends And Participating Securities Share In Earnings Loss Preferred stock dividends and participating securities share in earnings (loss). Total Secured Debt Schedule of Management Fees and Incentive Management Fees Incurred and Paid Pursuant to Management Agreement Schedule of Related Party Transactions [Table Text Block] Other expenses Other Expenses [Abstract] SEC Schedule, 12-09, Valuation Allowances and Reserves Type SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] Paid In Kind Interest [Roll Forward] Paid In Kind Interest [Roll Forward] Paid In Kind Interest Unfunded loan commitments Unfunded Loan Commitment [Member] East East [Member] East. Total cost of debt instrument, percent Debt Instrument, Cost, Percent Debt Instrument, Cost, Percent Deferred revenue Increase (Decrease) in Deferred Revenue Accrued interest and fees receivable Increase (Decrease) in Accrued Interest Receivable, Net Total other revenue Noninterest Income Reimbursable expenses remained outstanding Reimbursable Expenses Remained Outstanding Reimbursable expenses remained outstanding. Aggregate net assest Asset Acquisition, Consideration Transferred Liquidation preference (in USD per share quarterly) Temporary equity liquidation preference per share quarterly Temporary Equity Liquidation Preference Per Share Quarterly Holdco T P G R E Finance Trust Holdco Limited Liability Company [Member] TPG RE Finance Trust Holdco, LLC. Document Information [Line Items] Document Information [Line Items] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Class of Stock Class of Stock [Axis] Net income attributable to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Estimated fair value of loans held for investment Loans Held For Investment Fair Value Disclosure Nonrecurring Loans held for investment fair value disclosure nonrecurring. Sub-REIT Sub Real Estate Investment Trust [Member] Sub real estate investment trust. Total accumulated amortization Intangible Asset, Finite-Lived, Accumulated Amortization Maximum commitment amount Line of Credit Facility, Maximum Borrowing Capacity Dividends on preferred stock Dividends, preferred stock Dividends, Preferred Stock 2030 Below Market Lease, Amortization Income, Year Four Loans held for investment, net Loans pledged as collateral Beginning balance Ending balance Carrying value Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Realized loss on loan write-off Financing Receivable, Allowance for Credit Loss, Writeoff Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Earnings per Common Share Earnings Per Share, Policy [Policy Text Block] Accrued capital expenditures related to real estate owned Capital Expenditures Incurred but Not yet Paid Collateralized loan obligation proceeds held at trustee Collateralized Loan Obligation Proceeds Held At Trustee1 Collateralized loan obligation proceeds held at truste1. Real estate owned, net Asset Acquisition, Real Estate Owned, Net Asset Acquisition, Real Estate Owned, Net Accrued costs from issuance of common stock Stock Issuance Costs Incurred But Not Yet Paid Stock Issuance Costs Incurred But Not Yet Paid Common Stock, Undefined Class Common Stock Undefined Class [Member] Common stock undefined class. Collateralized loan obligations, net Amount payable Carrying value Total Long-Term Debt Amortized cost basis of loans by origination, year three Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 3 Risk Rating Three [Member] Risk rating three. Cash flows due to changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Threshold period of delinquency Threshold Period Of Delinquency To Consider Loan Nonperforming And Place On Nonaccrual Status Threshold period of delinquency to consider loan non-performing and place loan on non-accrual status. Loan commitment capitalized interest Loan Commitment Capitalized Interest Costs Loan commitment capitalized interest costs. 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] BMO Facility BMO Facility [Member] BMO Facility Amortized cost Amortized Cost [Member] Amortized Cost Stockholders' Equity Equity [Text Block] Security Exchange Name Security Exchange Name Maximum period permits to finance eligible loans Maximum Period Permits To Finance Eligible Loans Maximum period permits to finance eligible loans. Valuation Approach and Technique Valuation Approach and Technique [Axis] Fixed Rate Subordinate First Mortgage Loan Fixed Rate Subordinate First Mortgage Loan [Member] Fixed Rate Subordinate First Mortgage Loan Number of shares authorized under the plan (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized REIT Subsidiaries Real Estate Investment Trust Subsidiaries [Member] Real estate investment trust subsidiaries. Period following amendment not subject to margin calls Debt Instrument, Period Following Amendment, Not Subject To Margin Calls Debt Instrument, Period Following Amendment, Not Subject To Margin Calls Segments Segment Reporting, Policy [Policy Text Block] Schedule of Property, Plant and Equipment Property, Plant, and Equipment [Table Text Block] Interest income and interest expense Interest Income (Expense), Operating [Abstract] Name Outstanding Recovery, Individual Name Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Geographical Geographical [Domain] 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] Significant Accounting Policies [Line Items] Significant Accounting Policies [Line Items] Significant accounting policies. Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Asset Management Services, Charges Asset Management Services, Charges [Member] Asset Management Services, Charges Amortization of deferred financing costs and debt issuance discount Amortization of debt issuance costs and discounts Amortization of Debt Issuance Costs and Discounts Number of lenders provided credit facility Number Of Lenders Number of lenders provided credit facility. Company transfers rights to counter party with option to buy back Company Transfers Rights To Counter Party With Option to Buy Back [Member] Company Transfers Rights To Counter Party With Option to Buy Back Equity interest percentage by parent Subsidiary, Ownership Percentage, Parent Midwest Midwest [Member] Midwest. Various Various [Member] Various. Outstanding principal balance Balance outstanding Principal balance Total Long-Term Debt, Gross Management Agreement, Average Annual Incentive Compensation Management Agreement, Average Annual Incentive Compensation [Member] Management Agreement, Average Annual Incentive Compensation Carrying value Financing Receivable, Excluding Accrued Interest, After Allowance For Credit Losses [Abstract] Financing Receivable, Excluding Accrued Interest, After Allowance For Credit Losses Related Party Transactions [Abstract] Related Party Transactions [Abstract] Investment Portfolio Financing Arrangements ,Corporate Financing Arrangements and Deferred Financing Costs Debt, Policy [Policy Text Block] Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Chicago, IL Chicago, IL [Member] Chicago, IL Diluted (in shares) Weighted average common shares outstanding, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] General reserve SEC Schedule, 12-09, Reserve, General Reserve [Member] SEC Schedule, 12-09, Reserve, General Reserve Entity Emerging Growth Company Entity Emerging Growth Company Related Party Transaction [Line Items] Related Party Transaction [Line Items] Proceeds from collateralized loan obligations Proceeds from Issuance of First Mortgage Bond Loans held for investment Amortized cost Amortized cost Beginning balance Ending balance Total Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Underlying Security Market Price Change Underlying Security Market Price Change, Percent 2028 Below Market Lease, Amortization Income, Year Two Money market funds Cash Equivalent, Money Market Fund, Carrying Value Schedule of Loans Held for Investment Portfolio Activity Summary Of Activity In Loan Portfolio Table [Table Text Block] Summary of activity in loan portfolio. Reversal of credit losses, net Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) Loan modified in the period Financing Receivable, Modified in Period, Amount Allowance for credit loss, (decrease) increase Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Period Increase (Decrease) Amount incurred and reimbursable Reimbursable Expenses Incurred Reimbursable expenses incurred. Principal repayments of loans held for investment held by servicer/trustee, net Principal Repayments Of Loans Held For Investment Held By Servicer Trustee Net Principal Repayments Of Loans Held For Investment Held By Servicer Trustee Net Accounts Receivable from Servicer/Trustee Accounts Receivable From Servicer Trustee Policy [Policy Text Block] Accounts Receivable from Servicer/Trustee. Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Amortization and accretion of premiums, discounts and loan origination fees, net Amortization And Accretion Of Premiums Discounts And Loan Origination Fees Net Amortization and accretion of premiums discounts and loan origination fees net. Barclays Barclays Bank P L C [Member] Barclays bank PLC. Measurement Input, Cap Rate Measurement Input, Cap Rate [Member] Collateral Held Collateral Held [Domain] Beginning balance (in USD per share) Ending balance (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 All Executive Categories All Executive Categories [Member] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Unpaid principal balance Outstanding principal Total unpaid principal balance Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Revenue from real estate owned operations Revenue from real estate owned operations Revenue From Real Estate Owned Operations Revenue From Real Estate Owned Operations Four Mortgage Loans Four Mortgage Loans [Member] Four Mortgage Loans REO, unpaid principal balance Real Estate Owned, Unpaid Principal Balance Real Estate Owned, Unpaid Principal Balance Schedule of Loans Held for Investment Portfolio by Property/ Loan Category Type Summary of Loans Held for Investment Portfolio by Property/ Loan Category Type [Table Text Block] Summary of Loans Held for Investment Portfolio by Property/ Loan Category Type Asset Acquisition Asset Acquisition [Domain] Houston, TX Houston, TX [Member] Houston, TX Accrued interest, location Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Schedule of Calculation of Basic and Diluted Earnings per Common Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Schedule of Real Estate Owned, Revenue and Expenses Schedule Of Real Estate Owned, Revenue And Expenses [Table Text Block] Schedule Of Real Estate Owned, Revenue And Expenses Initial advance rate Initial Advance Rate Initial advance rate. Minimum Minimum [Member] Real estate owned, term Real Estate Owned, Term Real Estate Owned, Term Liabilities Liabilities [Abstract] 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] Accrued interest Financing Receivable, Accrued Interest, after Allowance for Credit Loss Payable to affiliates Payable to affiliates Other Liabilities Institutional Lender Institutional Lender [Member] Institutional Lender Dividends on common stock Dividends, common stock Dividends, Common Stock 2027 Below Market Lease, Amortization Income, Year One Real Estate Owned Real Estate Owned [Text Block] Term out period Debt Instrument, Term-Out Period Debt Instrument, Term-Out Period Collection of principal Collection of principal Financing Receivable, Excluding Accrued Interest, Proceeds Financing Receivable, Excluding Accrued Interest, Proceeds Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Common stock, authorized (in shares) Common Stock, Shares Authorized Concentration of Credit Risk Concentration Risk Disclosure [Text Block] Individual assessment, number of loans Financing Receivable, Individual Assessment, Number Of Loans Financing Receivable, Individual Assessment, Number Of Loans Exercise Price Award Exercise Price Authorized shares for repurchase (in shares) Share Repurchase Program, Authorized, Amount Document Quarterly Report Document Quarterly Report Asset-specific financing arrangements Asset-Specific Financing Arrangements [Member] Asset-Specific Financing Arrangements 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] Below-market lease intangibles, net Asset Acquisition, Below Market Leases Asset Acquisition, Below Market Leases Lender Name Lender Name [Axis] Proceeds from partial principal payments Proceeds from Collection of Finance Receivables Asset-specific financing arrangements Other Secured Debt [Member] Other Secured Debt Accrued interest payable Accrued interest payable Interest Payable Management fee Management Fee Expense Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity Component Equity Component [Domain] Measurement Input Type [Domain] Measurement Input Type [Domain] Fair value of financial assets Loans Receivable, Fair Value Disclosure Adoption Date Trading Arrangement Adoption Date Accrued interest and fees receivable Accrued interest and fees receivable Accrued Interest And Fees Receivable Accrued interest and fees receivable. Percent of stockholders' equity Debt Instrument Counterparty Amount At Risk Percent Of Stockholders Equity Debt instrument counterparty amount at risk percent of stockholders equity. Counterparty Name Counterparty Name [Domain] Payments for underwriting expense Payments for Underwriting Expense Number of loans accrued paid in kind interest outstanding Number Of Loans Paid In Kind Interest Outstanding Number Of Loans Paid In Kind Interest Outstanding Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Terminal Capitalization Rate Terminal Capitalization Rate [Member] Terminal Capitalization Rate Accounting Policies [Abstract] Accounting Policies [Abstract] Expenses from real estate owned operations Expenses from real estate owned operations Expenses From Real Estate Owned Operations Expenses From Real Estate Owned Operations Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Payments of costs from issuance of common stock Payments of Stock Issuance Costs Interest income Interest Income, Operating Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Accounts receivable from servicer/trustee Accounts Receivable From Servicer Or Trustee Accounts receivable from servicer or trustee. Minimum cash liquidity of recourse indebtedness Debt Instrument, Covenant, Cash Liquidity Of Recourse Indebtedness Debt Instrument, Covenant, Cash Liquidity Of Recourse Indebtedness Unused borrowing capacity fee, threshold percentage Debt Instrument, Unused Borrowing Capacity Fee, Borrowing Threshold Unused fee based on target utilization rate. Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Total rental income Operating Lease, Lease Income Financial Asset, Aging Financial Asset, Aging [Domain] Related party transaction, period Related Party Transaction, Period Related Party Transaction, Period Underlying Asset Class Underlying Asset Class [Axis] All Adjustments to Compensation All Adjustments to Compensation [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 Preferred stock, aggregate liquidation preference Preferred Stock, Liquidation Preference, Value Percentage of loans subject to yield maintenance or other prepayment restrictions Percentage Of Loans Subject To Yield Maintenance Or Other Prepayment Restrictions Percentage of loans subject to yield maintenance or other prepayment restrictions. TRTX 2026-FL8 TRTX 2026-FL8 [Member] TRTX 2026-FL8 Income Statement [Abstract] Income Statement [Abstract] Document Transition Report Document Transition Report Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Schedule of Amortization of Lease Intangibles Intangible Asset, Finite-Lived [Table Text Block] Incentive management fee percentage of core earnings less seven percent of stockholders equity Incentive Management Fee Percentage Of Core Earnings Less Seven Percent Of Stockholders Equity Incentive management fee percentage of Core Earnings less seven percent of stockholders' equity. Floating rate loans Percentage Of Loans And Leases Receivable Percentage of loans and leases receivable. City Area Code City Area Code Document Information [Table] Document Information [Table] Subsequent Events Subsequent Events [Text Block] Collateral Assets Collateral Assets [Member] Collateral Assets Total accumulated amortization Below Market Lease, Accumulated Amortization Name Forgone Recovery, Individual Name Capital Markets Services, Charges Capital Markets Services, Charges [Member] Capital Markets Services, Charges Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] 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] Entity Entity [Domain] Aggregate fair value Total Asset Acquisition, Assets Acquired and Liabilities Assumed, Net Asset Acquisition, Assets Acquired and Liabilities Assumed, Net Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Dividend percentage Temporary Equity Dividend Rate Percentage Temporary equity dividend rate percentage. Stock-based Compensation Share-Based Payment Arrangement [Policy Text Block] 1 Risk Rating One [Member] Risk rating one. Other assets Increase (Decrease) in Other Operating Assets Real estate owned, net Real Estate Owned Real estate owned. Issuance of common stock, net (in shares) Stock Issued During Period, Shares, New Issues Measurement Basis [Axis] Measurement Basis [Axis] Assumed working capital Asset Acquisition, Assumed Working Capital Asset Acquisition, Assumed Working Capital Retired common stock (in shares) Retirement of common stock (in shares) Stock Repurchased and Retired During Period, Shares F L 8 Notes F L 8 Notes [Member] F L 8 Notes Below-market lease intangibles Below Market Lease, Net, Amortization Income, Fiscal Year Maturity [Abstract] 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 Number of secured credit facilities Number Of Loans Refinanced Number Of Loans Refinanced Subsequent Event Type Subsequent Event Type [Domain] 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 Stockholders' Equity Stockholders' Equity, Policy [Policy Text Block] Series A Preferred Stock Series A Preferred Stock [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Revenue Recognition Revenue Recognition, Interest [Policy Text Block] Entity Current Reporting Status Entity Current Reporting Status Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Financial liabilities Liabilities, Fair Value Disclosure [Abstract] 2025 Equity Incentive Plan Two Thousand Twenty Five Equity Incentive Plan [Member] Classification of common stock representing ownership interest in a corporation. Adjustment to reconcile net income to net cash flows from operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] 2029 Long-Term Debt, Maturity, Year Three Asset Acquisitions 2026 Asset Acquisitions 2026 [Member] Asset Acquisitions 2026 Weighted average term to extended maturity (in years) Financing Receivable, Modified, Weighted-Average Term Increase from Modification Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Unused borrowing capacity fee Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Financial Instruments Financial Instruments [Domain] Other comprehensive income Other Comprehensive Income (Loss), Tax [Abstract] Amortized cost basis of loans by origination, year five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Schedule Of Variable Interest Entities And Collateralized Loan Obligation [Line Items] Schedule Of Variable Interest Entities And Collateralized Loan Obligation [Line Items] Schedule Of Variable Interest Entities And Collateralized Loan Obligation [Line Items] Intangible Asset, Finite-Lived, Class Intangible Asset, Finite-Lived, Class [Axis] San Antonio, TX San Antonio, TX [Member] San Antonio, TX Underlying Securities Award Underlying Securities Amount Fair value Estimate of Fair Value Measurement [Member] Issuance of common stock, net Stock Issued During Period, Value, New Issues Extended Maturity and Interest Rate Reduction Extended Maturity and Interest Rate Reduction [Member] Cash Cash Preferred Stock Preferred Stock [Member] Schedule Of Related Party Transactions By Related Party [Table] Related Party Transaction [Table] Schedule of Geographic Composition of Loans Held for Investment Based on Current UPB and Loan Commitment Schedules Of Concentration Of Risk By Geographic Composition Of Loans Held For Investment Table [Table Text Block] Schedules of concentration of risk by geographic composition of loans held for investment. Expected loss reserve for unfunded loan commitments Beginning balance, allowance for credit loss Ending balance, allowance for credit loss Unfunded loan commitments Off-Balance-Sheet, Credit Loss, Liability Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Current Fiscal Year End Date Current Fiscal Year End Date Interest for underpayment of income taxes Unrecognized Tax Benefits, Interest on Income Taxes Expense BMO Harris Bank BMO Harris Bank [Member] BMO Harris Bank Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Increase of allowance for credit losses, net (see Note 3) Allowance for credit losses Allowance for credit losses Allowance (reversal) for credit losses, net Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal) Current-period realized loss on loan sales and REO conversions, year two Mortgage Loans On Real Estate, Realized Loss On Sales And Other Real Estate Conversion, Year Two, Originated, Fiscal Year Before Current Fiscal Year Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Write Off, Fiscal Year Before Current Fiscal Year 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] Dividend declared (in USD per share) Dividends declared (in USD per share) Common Stock, Dividends, Per Share, Declared Entity File Number Entity File Number Office Building Office Office Building [Member] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Preferred stock, dividends declared (in USD per share) Preferred Stock, Dividends Per Share, Declared Measure: Measure [Axis] Term Loan B Term Loan B [Member] Term Loan B Schedule of Variable Interest Entities Assets and Liabilities Schedule of Variable Interest Entities [Table Text Block] Weighted average risk rating Weighted Average Risk Rating Weighted average risk rating. Equity Components Equity Components [Axis] Related Party Related Party [Member] Schedule of REO Asset Acquired on the Acquisition Date Asset Acquisition [Table Text Block] Reserve for uncertain income tax positions Deferred Tax Assets, Valuation Allowance Entity Interactive Data Current Entity Interactive Data Current Entity Small Business Entity Small Business Comprehensive net income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Two Mortgage Loans Two Mortgage Loans [Member] Two Mortgage Loans Fees Incurred Management Fees And Incentive Management Fees Incurred Management fees and incentive management fees incurred. Unamortized discount Unamortized discount Debt Instrument, Unamortized Discount Weighted average amortization period Intangible Asset, Finite-Lived, Acquired, Weighted-Average Amortization Period Property, Plant, and Equipment [Line Items] Property, Plant, and Equipment [Line Items] Schedule of Awarded Shares Vesting Period Schedule Of Awarded Shares Vesting Period [Table Text Block] Schedule of awarded shares vesting period. Number of mortgage loans SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Number of Loans Net interest income Interest Income (Expense), Operating MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Penalties for underpayment of income taxes Unrecognized Tax Benefits, Income Tax Penalties Expense 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] Weighted average credit spread Financing Receivable, Weighted Average Credit Spread Loans and leases receivable weighted average credit spread. Accrued PIK interest Paid-in-Kind Interest Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Percentage of senior mortgage loan transferred to third-party Percentage Of Senior Mortgage Loan Transferred To Third Party Percentage of senior mortgage loan transferred to third-party. Subsequent Event [Line Items] Subsequent Event [Line Items] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Pledged Status Pledged Status [Domain] Commitments and contingencies - see Note 15 Commitments and Contingencies Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] 2030 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four Secured credit agreements Secured Revolving Credit Facility Secured Credit Agreements [Member] Secured credit agreements. Executive Category: Executive Category [Axis] Loan performance (in loans) Number Of Performance Loan Number of performance loan. Secured revolving credit facility Revolver Secured Revolving Credit Facility [Member] Secured revolving credit facility. Counterparty Name Counterparty Name [Axis] Liabilities and stockholders’ equity Liabilities and Equity [Abstract] 2030 Lessor, Operating Lease, Payment to be Received, Year Four Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Schedule Of Variable Interest Entities [Table] Variable Interest Entity [Table] Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] TRTX 2022-FL5, Investment-Grade Bonds TRTX 2022-FL5, Investment-Grade Bonds [Member] TRTX 2022-FL5, Investment-Grade Bonds Amortization of above and below-market leases Amortization of above and below Market Leases PEO Name PEO Name Schedule of Maturities Schedule Of Maturities [Text Block] Schedule of maturities. Accrued expenses and other liabilities Accrued expenses Accrued Liabilities and Other Liabilities Taxes paid Income Tax Paid, before Refund Received Bank of America Bank of America Bank Of America [Member] Bank of America. Long-Lived Asset, Class Long-Lived Asset, Class [Axis] Below-market lease intangibles Off-Market Favorable Lease [Member] Payments on secured financing agreements/Payments on asset-specific financing arrangements Repayments of Secured Debt Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Allowance for credit losses for loans held for investment: Accounts Receivable, Allowance for Credit Loss [Roll Forward] Schedule of Aging Analysis for Loans Held for Investment Portfolio by Class of Loans Financing Receivable, Past Due [Table Text Block] Current Financial Asset, Not Past Due [Member] 2031 Below Market Lease, Amortization Income, Year Five One Multifamily Loan One Multifamily Loan [Member] One Multifamily Loan Minimum lease payments Operating Lease, Lease Income, Lease Payments 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] Debt instrument recourse percentage Debt Instrument Recourse Percentage Debt Instrument Recourse Percentage TRTX 2022-FL5 F L 5 Notes [Member] FL 5 notes. Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] 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] Business and Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Debt Instrument Debt Instrument [Axis] Subsequent Event [Table] Subsequent Event [Table] Stock compensation expense Stock compensation expense Share-Based Payment Arrangement, Noncash Expense Corporate Financing Arrangements Corporate Financing Arrangements [Member] Corporate Financing Arrangements Payable to affiliates Increase (Decrease) in Due to Affiliates Incentive management fee Related Party Transaction, Amounts of Transaction Schedule Of Variable Interest Entities And Collateralized Loan Obligation [Table] Schedule Of Variable Interest Entities And Collateralized Loan Obligation [Table] Schedule of variable interest entities and collateralized loan obligation. Maximum written notice Temporary Equity, Maximum Written Notice Temporary Equity, Maximum Written Notice Period before remittance by servicer (less than) Account Receivable, Period Before Remittance Account Receivable, Period Before Remittance Earnings per common share, basic (in USD per share) Earnings Per Share, Basic Measurement Input Type Measurement Input Type [Axis] Deferred revenue Deferred revenue Deferred Revenue Self Storage Self Storage [Member] Self Storage Allowance for credit losses: Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Abstract] Insider Trading Arrangements [Line Items] Wtd. avg. maturity Debt Instrument Weighted Average Maturity Period Debt instrument weighted average maturity period. Current-period realized loss on loan sales and REO conversions, year five Mortgage Loans On Real Estate, Realized Loss On Sales And Other Real Estate Conversion, Year Five, Originated, Four Years Before Current Fiscal Year Mortgage Loans On Real Estate, Realized Loss On Sales And Other Real Estate Conversion, Year Five, Originated, Four Years Before Current Fiscal Year 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] Real Estate, Type of Property Real Estate, Type of Property [Axis] Maximum current availability Debt Instrument, Unused Borrowing Capacity, Amount Fair Value Measurement [Domain] Fair Value Measurement [Domain] Allowance for credit loss, decrease from full loan repayments Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery Thirteen Mortgage Loans Thirteen Mortgage Loans [Member] Thirteen Mortgage Loans % of loan commitment Percentage Of Loan Commitment Principal Amount Percentage of loan commitment principal amount. Other assets, net Asset Acquisition, Assets, Other Asset Acquisition, Assets, Other Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Cover [Abstract] Proceeds from asset-specific financing arrangements Proceeds from Issuance of Other Long-Term Debt Equity Awards Adjustments Equity Awards Adjustments [Member] Asset Acquisition [Line Items] Asset Acquisition [Line Items] Schedule of Future Minimum Lease Payments Lessor, Operating Lease, Payment to be Received, Maturity [Table Text Block] Proceeds from issuance of preferred stock and preference stock Proceeds from Issuance of Preferred Stock and Preference Stock Plan Name [Axis] Plan Name [Axis] Underlying Asset Class Underlying Asset Class [Domain] Schedule of Loans Held for Investment Portfolio by Loan Seniority Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Loan Pledged As Collateral Loan Pledged As Collateral [Member] Loan Pledged As Collateral Payments on collateralized loan obligations Repayments of First Mortgage Bond 2031 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Five Preferred stock dividends Dividends Preferred Stock Paid And Accrued Dividends preferred stock paid and accrued. Stockholders' equity Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Unfunded commitments related to loans held for investment Unfunded Commitments Loans Held For Investment Unfunded commitments loans held for investment. Multifamily Properties Multifamily Properties [Member] Multifamily Properties Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period General and administrative General and Administrative Expense Total loan repayments Total Loan Repayments Total loan repayments. Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Number of properties owned Number of Real Estate Properties Class of Stock Class of Stock [Domain] Real estate owned - Tenant improvements Asset Acquisition, Tenant Improvements Asset Acquisition, Tenant Improvements Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Total intangible liabilities Below Market Lease, Gross One Industrial Loan One Industrial Loan [Member] One Industrial Loan Real estate owned Asset Acquisition, Real Estate Owned, Gross Asset Acquisition, Real Estate Owned, Gross Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Fees Paid Management Fees And Incentive Management Fees Paid Management fees and incentive management fees paid. Income Taxes Income Tax Disclosure [Text Block] Current-period realized loss on loan sales and REO conversions, year one Mortgage Loans On Real Estate, Realized Loss On Sales And Other Real Estate Conversion, Year One, Originated, Current Fiscal Year Mortgage Loans On Real Estate, Realized Loss On Sales And Other Real Estate Conversion, Year One, Originated, Current Fiscal Year Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Entity Filer Category Entity Filer Category Additional fundings Additional fundings Financing Receivable, Excluding Accrued Interest, Other Additions Financing Receivable, Excluding Accrued Interest, Other Additions Total liabilities Asset Acquisition, Liabilities Assumed Asset Acquisition, Liabilities Assumed Variable Interest Entities and Collateralized Loan Obligations Variable Interest Entities And Collateralized Loan Obligation Disclosure [Text Block] The entire disclosure for variable interest entities and collateralized loan obligation. Other liabilities Asset Acquisition, Liabilities, Other Asset Acquisition, Liabilities, Other Total assets Asset Acquisition, Assets Acquired Asset Acquisition, Assets Acquired Financial Asset, Aging Financial Asset, Aging [Axis] Capital Loss Carryforward, Expiring 2028 Capital Loss Carryforward, Expiring 2028 [Member] Capital Loss Carryforward, Expiring 2028 Intangible liabilities, net Below Market Lease, Net Entity Address, Address Line Two Entity Address, Address Line Two Schedule Of Stock By Class [Table] Stock, Class of Stock [Table] Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Entity Address, Address Line One Entity Address, Address Line One 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 Weighted average gross spread percentage Loans Held For Investment Weighted Average Gross Credit Spread Loans held for investment weighted average gross credit spread. Income tax expense, net Income Tax Expense (Benefit) Collateralized loan obligations Collateralized Loan Obligations [Member] Risks and Uncertainties [Abstract] Risks and Uncertainties [Abstract] Unamortized discounts included in loans held for investment at amortized cost Financing Receivable, Unamortized Purchase Premium (Discount) Principles of Consolidation Consolidation, Policy [Policy Text Block] Related party transaction, multiplier Related Party Transaction, Multiplier Related Party Transaction, Multiplier Loans written off related to a REO conversion Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Variable Interest Entity, Primary Beneficiary Variable Interest Entity, Primary Beneficiary [Member] Unamortized deferred financing costs Unamortized Debt Issuance Expense Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Valuation Technique, Discounted Cash Flow Valuation Technique, Discounted Cash Flow [Member] Statement [Table] Statement [Table] 2028 Share-Based Payment Arrangement, Tranche Two [Member] Conversion to real estate owned of loans held for investment - Other liabilities Real Estate Owned, Transfer to Real Estate Owned, Other Liabilities Real Estate Owned, Transfer to Real Estate Owned, Other Liabilities Amortized cost basis of loans by origination, year two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Amortization of origination fees and discounts Amortization of origination fees and discounts Financing Receivable, Unamortized Loan Cost (Fees) and Purchase Premium (Discount) Financing Receivable, Unamortized Loan Cost (Fees) and Purchase Premium (Discount) Management Agreement, Incentive Compensation From Equity Management Agreement, Incentive Compensation From Equity [Member] Management Agreement, Incentive Compensation From Equity In-place lease intangibles, net Asset Acquisition, Acquired In-Place Lease Intangibles Asset Acquisition, Acquired In-Place Lease Intangibles Real Estate Owned Financing Receivable, Real Estate Acquired Through Foreclosure [Policy Text Block]