Entity Central Index Key Available-for-sale securities, unamortized premium (discount), net. Available for sale securities debt maturities within five years amortized cost. Amount after adjustments of available-for-sale debt securities at cost, maturing after the fifth fiscal year following the latest fiscal year. Available for sale securities debt maturities within five years fair value. Fair value of available-for-sale debt securities maturing after the fifth fiscal year following the latest fiscal year. Cover [Abstract] Document Information [Table] Document Information [Table] Class of Stock Statement Class Of Stock [Axis] Class of Stock Class Of Stock [Domain] Common class undefined. Common Stock Common Class Undefined [Member] Class A Common Stock Common Class A [Member] Document Information [Line Items] Document Information [Line Items] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Document Quarterly Report Document Quarterly Report Document Transition Report Document Transition Report Title of each class Security12b Title Trading Symbol Trading Symbol Name of each exchange on which registered Security Exchange Name Entity Registrant Name Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Incorporation, State or Country Code Entity Incorporation State Country Code Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Shell Company Entity Shell Company Entity File Number Entity File Number Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address Address Line1 Entity Address, Address Line Two Entity Address Address Line2 Entity Address, City or Town Entity Address City Or Town Entity Address, State or Province Entity Address State Or Province Entity Address, Postal Zip Code Entity Address Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Accounts receivable from servicer or trustee. Asset-specific financings. Statement Of Financial Position [Abstract] Statement [Table] Statement [Table] Common stock undefined class. Common Stock, Undefined Class Common Stock Undefined Class [Member] Statement [Line Items] Statement [Line Items] ASSETS Assets [Abstract] Cash and Cash Equivalents Cash And Cash Equivalents At Carrying Value Restricted Cash Restricted Cash Accounts Receivable Accounts Receivable Net Accounts Receivable from Servicer/Trustee Accounts Receivable From Servicer Or Trustee Accrued Interest Receivable Interest Receivable Loans Held for Investment, net (includes $3,897,526 and $2,219,574 pledged as collateral under secured revolving repurchase and secured credit agreements) Loans And Leases Receivable Net Reported Amount Investment in Available-for-Sale Debt Securities (includes $604,053 and $36,307 pledged as collateral under secured revolving repurchase agreements) Available For Sale Securities Other Assets, Net Other Assets Total Assets Assets LIABILITIES AND STOCKHOLDERS EQUITY Liabilities And Stockholders Equity [Abstract] Liabilities Liabilities [Abstract] Accrued Interest Payable Interest Payable Current And Noncurrent Accrued Expenses Accrued Liabilities Current And Noncurrent Secured Revolving Repurchase, Senior Secured, and Secured Credit Agreements (net of deferred financing costs of $14,081 and $10,448) Securities Sold Under Agreements To Repurchase Collateralized Loan Obligations (net of deferred financing costs of $6,745 and $12,447) Secured Debt Asset-Specific Financings (net of deferred financing costs of $443 and $129) Asset Specific Financings Term Loan Facility (net of deferred financing costs of $0 and $758) Long Term Loans Payable Payable to Affiliates Due To Affiliate Current And Noncurrent Deferred Revenue Deferred Revenue Dividends Payable Dividends Payable Current And Noncurrent Total Liabilities Liabilities Commitments and Contingencies—See Note 14 Commitments And Contingencies Stockholders’ Equity: Stockholders Equity [Abstract] Preferred Stock ($0.001 par value per share; 100,000,000 shares authorized; 125 and 0 shares issued and outstanding, respectively) Preferred Stock Value Common Stock Value Common Stock Value Additional Paid-in-Capital Additional Paid In Capital Accumulated Deficit Retained Earnings Accumulated Deficit Accumulated Other Comprehensive Gain (Loss) Accumulated Other Comprehensive Income Loss Net Of Tax Total Stockholders' Equity Stockholders Equity Total Liabilities and Stockholders' Equity Liabilities And Stockholders Equity Underlying Asset Class Underlying Asset Class [Axis] Underlying Asset Class Underlying Asset Class [Domain] Collateralized Loan Obligation Collateralized Loan Obligations [Member] Debt Instrument Debt Instrument [Axis] Debt Instrument, Name Debt Instrument Name [Domain] Term loan facility. Term Loan Facility Term Loan Facility [Member] Asset specific financings. Asset-specific Financing Asset Specific Financings [Member] Investment Type Investment Type [Axis] Investments Investment Type Categorization [Member] Repurchase Agreements Repurchase Agreements [Member] Variable Interest Entities Variable Interest Entities By Classification Of Entity [Axis] Variable Interest Entity, Classification Classification Of Variable Interest Entity [Domain] Variable Interest Entity, Primary Beneficiary Variable Interest Entity Primary Beneficiary [Member] Loans pledged as collateral Loans Pledged As Collateral Available-for-sale securities pledged as collateral Debt Securities Available For Sale Restricted Deferred financing costs Deferred Finance Costs Net Preferred stock, par value Preferred Stock Par Or Stated Value Per Share Preferred stock, authorized shares Preferred Stock Shares Authorized Preferred stock, shares issued Preferred Stock Shares Issued Preferred stock, shares outstanding Preferred Stock Shares Outstanding Common stock, par value Common Stock Par Or Stated Value Per Share Common stock, authorized shares Common Stock Shares Authorized Common stock, shares issued Common Stock Shares Issued Common stock, shares outstanding Common Stock Shares Outstanding Total assets Total liabilities Servicing and asset management fees. Income Statement [Abstract] INTEREST INCOME Interest Income Expense Net [Abstract] Interest Income Interest Income Operating Interest Expense Interest Expense Net Interest Income Interest Income Expense Net OTHER REVENUE Noninterest Income Other [Abstract] Other Income, net Noninterest Income Other Total Other Revenue Noninterest Income OTHER EXPENSES Other Expenses [Abstract] Professional Fees Professional Fees General and Administrative General And Administrative Expense Servicing and Asset Management Fees Servicing And Asset Management Fees Management Fee Management Fee Expense Incentive Management Fee Incentive Fee Expense Total Other Expenses Other Expenses Income Before Income Taxes Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Income Tax (Expense) Income, net Income Tax Expense Benefit Net Income Net Income Loss Preferred Stock Dividends Preferred Stock Dividends Income Statement Impact Net Income Attributable to TPG RE Finance Trust, Inc. Net Income Loss Available To Common Stockholders Basic Basic Earnings per Common Share Earnings Per Share Basic Diluted Earnings per Common Share Earnings Per Share Diluted Weighted Average Number of Common Shares Outstanding Weighted Average Number Of Shares Outstanding [Abstract] Basic: Weighted Average Number Of Shares Outstanding Basic Diluted: Weighted Average Number Of Diluted Shares Outstanding OTHER COMPREHENSIVE INCOME Other Comprehensive Income Loss Tax [Abstract] Unrealized Gain (Loss) on Available-for-Sale Debt Securities Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax Comprehensive Net Income Comprehensive Income Net Of Tax Series A preferred stock issued during period shares new issues. Issuance of Series A Preferred Stock. Dividends on Class A common stock. Statement Of Stockholders Equity [Abstract] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Preferred Stock Preferred Stock [Member] Common Stock Common Stock [Member] Additional Paid-in-Capital Additional Paid In Capital [Member] Accumulated Deficit Retained Earnings [Member] Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income [Member] Balance Balance, Shares Shares Outstanding Issuance of Common Stock Stock Issued During Period Value New Issues Issuance of Common Stock, Shares Stock Issued During Period Shares New Issues Conversions of Class A Common Stock to Common Stock Stock Issued During Period Shares Conversion Of Convertible Securities Repurchase of Common Stock for Net Settlement of Share Based Compensation Taxes Stock Repurchased And Retired During Period Value Repurchases of Common Stock for Net Settlement of Share Based Compensation Taxes, Shares Stock Repurchased And Retired During Period Shares Redemption of Series A Preferred Stock Stock Redeemed Or Called During Period Value Redemption of Series A Preferred Stock, Shares Stock Redeemed Or Called During Period Shares Issuance of Series A Preferred Stock Series A Preferred Stock Issued During Period Value New Issues Issuance of Series A Preferred Stock, Shares Series A Preferred Stock Issued During Period Shares New Issues Equity Issuance, Shelf Registration, and Equity Distribution Agreement Transaction Costs Adjustments To Additional Paid In Capital Stock Issued Issuance Costs Amortization of Share Based Compensation Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Net Income Other Comprehensive Income (Loss) Other Comprehensive Income Loss Net Of Tax Dividends on Preferred Stock Dividends Preferred Stock Dividends on Common Stock (Dividends Declared per Share) Dividends Common Stock Dividends on Class A Common Stock (Dividends Declared per Share) Dividends On Class A Common Stock Balance Balance, Shares Common stock dividends declared per share Common Stock Dividends Per Share Declared Amortization and accretion of premiums discounts and loan origination fees net. Payments for advances on loans held for investment. Payment for (proceeds from) financing costs. Payments for retirement of preferred stock. Payments for retirement of common stock. Payment of equity issuance and equity distribution agreement transaction costs. Principal repayments of loans held for investment held by servicer trustee net. Principal repayments of available-for-sale debt securities held by servicer/trustee, net. Accrued equity issuance, shelf registration and equity distribution agreement transaction costs. Accrued share based compensation taxes. Statement Of Cash Flows [Abstract] Preferred Class A Preferred Class A [Member] Cash Flows from Operating Activities: Net Cash Provided By Used In Operating Activities [Abstract] Adjustment to Reconcile Net Income to Net Cash Provided by Operating Activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Amortization and Accretion of Premiums, Discounts and Loan Origination Fees, net Amortization And Accretion Of Premiums Discounts And Loan Origination Fees Net Amortization of Deferred Financing Costs Amortization Of Financing Costs Loss on Sales of Loans Held for Investment and Available-for-Sale Debt Securities Gain Loss On Sale Of Investments Stock Compensation Expense Share Based Compensation Cash Flows Due to Changes in Operating Assets and Liabilities: Increase Decrease In Operating Capital [Abstract] Accounts Receivable Increase Decrease In Accounts Receivable Accrued Interest Receivable Increase Decrease In Accrued Interest Receivable Net Accrued Expenses Increase Decrease In Accrued Liabilities Accrued Interest Payable Increase Decrease In Interest Payable Net Payable to Affiliates Increase Decrease In Due To Affiliates Deferred Fee Income Increase Decrease In Deferred Revenue Other Assets Increase Decrease In Other Operating Assets Net Cash Provided by Operating Activities Net Cash Provided By Used In Operating Activities Cash Flows from Investing Activities: Net Cash Provided By Used In Investing Activities [Abstract] Origination and Acquisition of Loans Held for Investment Payments For Proceeds From Loans Receivable Advances on Loans Held for Investment Payments For Advances On Loans Held For Investment Principal Repayments of Loans Held for Investment Proceeds From Principal Repayments On Loans And Leases Held For Investment Sales Proceeds from Loans Held for Investment Proceeds From Sale Of Loans Held For Investment Purchase of Available-for-Sale Debt Securities Payments To Acquire Available For Sale Securities Debt Sales and Principal Repayments of Available-for-Sale Debt Securities Proceeds From Sale And Maturity Of Available For Sale Securities Net Cash (Used in) Investing Activities Net Cash Provided By Used In Investing Activities Cash Flows from Financing Activities: Net Cash Provided By Used In Financing Activities [Abstract] Payments on Collateralized Loan Obligations Repayments Of First Mortgage Bond Proceeds from Collateralized Loan Obligations Proceeds From Issuance Of First Mortgage Bond Payments on Secured Financing Agreements Repayments Of Secured Debt Proceeds from Secured Financing Agreements Proceeds From Issuance Of Secured Debt Payment of Deferred Financing Costs Payment For Proceeds From Financing Costs Payments to Redeem Series A Preferred Stock Payments For Retirement Of Preferred Stock Payments to Repurchase Common Stock Payments For Retirement Of Common Stock Proceeds from Issuance of Preferred Stock Proceeds From Issuance Of Preferred Stock And Preference Stock Proceeds from Issuance of Common Stock Proceeds From Issuance Of Common Stock Payment of Equity Issuance and Equity Distribution Agreement Transaction Costs Payment Of Equity Issuance And Equity Distribution Agreement Transaction Costs Dividends paid Payments Of Dividends Net Cash Provided by Financing Activities Net Cash Provided By Used In Financing Activities Net Change in Cash, Cash Equivalents, and Restricted Cash Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Cash, Cash Equivalents and Restricted Cash at Beginning of Period Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Cash, Cash Equivalents and Restricted Cash at End of Period Supplemental Disclosure of Cash Flow Information: Supplemental Cash Flow Information [Abstract] Interest Paid Interest Paid Net Taxes Paid Income Taxes Paid Supplemental Disclosure of Non-Cash Investing and Financing Activities: Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] 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 Available-for-Sale Debt Securities Held by Servicer/Trustee, net Principal Repayments Of Available For Sale Debt Securities Held By Servicer Trustee Net Dividends Declared, not paid Accrued Equity Issuance, Shelf Registration, and Equity Distribution Agreement Transaction Costs Accrued Equity Issuance Shelf Registration And Equity Distribution Agreement Transaction Costs Accrued Deferred Financing Costs Debt Issuance Costs Incurred During Noncash Or Partial Noncash Transaction Accrued Share Based Compensation Taxes Accrued Share Based Compensation Taxes Unrealized Gain (Loss) on Available-for-Sale Debt Securities Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax Organization Consolidation And Presentation Of Financial Statements [Abstract] Business and Organization Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] Accounting Policies [Abstract] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Loans held for investment. Receivables [Abstract] Loans Held for Investment Loans Held For Investment [Text Block] Investments Debt And Equity Securities [Abstract] Available-for-Sale Debt Securities Investments In Debt And Marketable Equity Securities And Certain Trading Assets Disclosure [Text Block] The entire disclosure for variable interest entities and collateralized loan obligation. Variable Interest Entities and Collateralized Loan Obligations Variable Interest Entities And Collateralized Loan Obligation Disclosure [Text Block] Debt Disclosure [Abstract] Secured Revolving Repurchase Agreements, Senior Secured and Secured Credit Agreements, Term Loan Facility, and Asset-Specific Financings Repurchase Agreements Resale Agreements Securities Borrowed And Securities Loaned Disclosure [Text Block] Schedule of maturities. Schedule of Maturities Schedule Of Maturities [Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Measurement Inputs Disclosure [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Related Party Transactions [Abstract] Related Party Transactions Related Party Transactions Disclosure [Text Block] Earnings Per Share [Abstract] Earnings per Share Earnings Per Share [Text Block] Stockholders Equity Note [Abstract] Stockholders' Equity Stockholders Equity Note Disclosure [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Share-based Incentive Plan Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Commitments And Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments And Contingencies Disclosure [Text Block] Risks And Uncertainties [Abstract] Concentration of Credit Risk Concentration Risk Disclosure [Text Block] Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Basis of Presentation Basis Of Accounting Policy Policy [Text Block] Use of Estimates Use Of Estimates Principles of Consolidation Consolidation Policy [Text Block] Revenue Recognition Revenue Recognition Policy [Text Block] Loans Held for Investment Finance Loan And Lease Receivables Held For Investment Policy Commercial Mortgage-Backed and Commercial Real Estate Collateralized Loan Obligation Securities Marketable Securities Policy Portfolio financing arrangements policy. Portfolio Financing Arrangements Portfolio Financing Arrangements Policy Policy [Text Block] Fair Value Measurements Fair Value Measurement Policy Policy [Text Block] Income Taxes Income Tax Policy [Text Block] Earnings per Common Share Earnings Per Share Policy [Text Block] Share-Based Compensation Share Based Compensation Option And Incentive Plans Policy Deferred Financing Costs Debt Policy [Text Block] Cash and Cash Equivalents Cash And Cash Equivalents Policy [Text Block] Restricted Cash Cash And Cash Equivalents Restricted Cash And Cash Equivalents Policy Accounts Receivable from Servicer/Trustee. Accounts Receivable from Servicer/Trustee Accounts Receivable From Servicer Trustee Policy [Text Block] Recently Issued Accounting Pronouncements New Accounting Pronouncements Policy Policy [Text Block] Schedule of Mortgage Loan Investment Portfolio Schedule Of Accounts Notes Loans And Financing Receivable [Text Block] Summary of activity in loan portfolio. Summary of Loan Portfolio Activity Summary Of Activity In Loan Portfolio Table [Text Block] Summary of Carrying Values and Results of Internal Risk Rating Review Financing Receivable Credit Quality Indicators Table [Text Block] Details of Carrying and Fair Values Of CMBS And CRE CLO Investment Portfolio Available For Sale Securities [Text Block] Commercial Mortgage-Backed Securities Investments by Contractual Maturity Investments Classified By Contractual Maturity Date Table [Text Block] Summary of Variable Interest Entities Assets and Liabilities Schedule Of Variable Interest Entities [Text Block] Schedule of Borrowings and Corresponding Collateral Schedule Of Debt Table [Text Block] Schedule of information related to secured revolving repurchase agreements, senior secured and secured credit agreements, and asset-specific financings. Debt Instrument [Table] Debt Instrument [Table] Financial Instrument Financial Instrument [Axis] Financial Instruments Transfers And Servicing Of Financial Instruments Types Of Financial Instruments [Domain] Commercial mortgage loans. Commercial Mortgage Loans Commercial Mortgage Loans [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Schedule of Information Related to Secured Revolving Repurchase Agreements, Senior Secured and Secured Credit Agreements, and Asset-Specific Financings Schedule Of Information Related To Secured Revolving Repurchase Agreements Senior Secured And Secured Credit Agreements And Asset Specific Financings Table [Text Block] Summary of Repurchase Agreements Secured by Commercial Mortgage Loans, CMBS, CRE CLO Investments, Long - term Borrowings, and Counterparty Concentration Schedule Of Repurchase Agreement Counterparties With Whom Repurchase Agreements Exceed10 Percent Of Stockholders Equity [Text Block] Schedule of Future Principal Payments Schedule Of Maturities Of Long Term Debt Table [Text Block] Summary of Financial Assets and Liabilities Not Carried at Fair Value On Recurring Basis Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis Table [Text Block] Summary of Management Fees and Incentive Management Fees Incurred and Paid Pursuant to Management Agreement Schedule Of Related Party Transactions Table [Text Block] Schedule of Calculation of Basic and Diluted Earnings per Common Share Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Loans And Leases Receivable Disclosure [Table] Loans And Leases Receivable Disclosure [Table] Concentration Risk Type Concentration Risk By Type [Axis] Concentration Risk Type Concentration Risk Type [Domain] Loan category. Loan Category Loan Category [Member] Loans And Leases Receivable Disclosure [Line Items] Loans And Leases Receivable Disclosure [Line Items] Summary of Loan Portfolio by Property/ Loan Category Type Schedules Of Concentration Of Risk By Risk Factor [Text Block] Schedules of concentration of risk by geographic composition of loans held for investment. Summary 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 [Text Block] Threshold period of delinquency to consider loan non-performing and place loan on non-accrual status. Number of loans on non-accrual status. Threshold period of delinquency Threshold Period Of Delinquency To Consider Loan Nonperforming And Place On Nonaccrual Status Number of loans on non-accrual status Number Of Loans On Non Accrual Status 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 Maximum insured amount of each cash account. Maximum insured amount of each cash account Maximum Insured Amount Of Each Cash Account Loan commitment principal amount. Loans and leases receivable unpaid principal balance. Unfunded commitments related to loans receivable. Schedule Of Accounts Notes Loans And Financing Receivable [Table] Schedule Of Accounts Notes Loans And Financing Receivable [Table] Counterparty Name Counterparty Name [Axis] Counterparty Name Repurchase Agreement Counterparty Name [Domain] German American Capital Corporation. German American Capital Corporation German American Capital Corporation [Member] Non consolidated senior interests. Non Consolidated Senior Interests Non Consolidated Senior Interests [Member] SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category Mortgage Loans On Real Estate Description Loan Category [Axis] SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category Mortgage Loans On Real Estate Loan Category [Domain] Originated or acquired six mortgage loans. Originated or Acquired 6 Mortgage Loans Originated Or Acquired Six Mortgage Loans [Member] Originated or acquired 25 loans. Originated or Acquired 25 Mortgage Loans Originated Or Acquired Twenty Five Loans [Member] Variable Rate Variable Rate [Axis] Variable Rate Variable Rate [Domain] LIBOR London Interbank Offered Rate L I B O R [Member] Real Estate, Type of Property Mortgage Loans On Real Estate Description Type Of Property [Axis] Real Estate Mortgage Loans On Real Estate Name Property Type [Domain] Mezzanine loan investment. Mezzanine Loan Investment Mezzanine Loan Investment [Member] Internal Credit Assessment Internal Credit Assessment [Axis] Internal Credit Assessment Internal Credit Assessment [Domain] Moved from three risk rating into two risk rating. Moved from Three Risk Rating into Two Risk Rating Moved From Three Risk Rating Into Two Risk Rating [Member] Moved from three risk rating into four risk rating. Moved from Three Risk Rating into Four Risk Rating Moved From Three Risk Rating Into Four Risk Rating [Member] Accounts Notes And Loans Receivable [Line Items] Accounts Notes And Loans Receivable [Line Items] Number of mortgage loans originated or acquired Mortgage Loans On Real Estate Number Of Loans Total loan commitment amount Loan Commitment Principal Amount Unpaid principal balance Loans And Leases Receivable Unpaid Principal Balance Unfunded loan commitments Unfunded Commitments Related To Loans Receivable Loans And Leases Receivable Disclosure [Abstract] Senior Loans Senior Loans [Member] Subordinated and mezzanine loans. Subordinated and Mezzanine Loans Subordinated And Mezzanine Loans [Member] Outstanding Principal, before allowance for loan losses Loans And Leases Receivable Before Fees Gross Unamortized Premium (Discount), Loan Origination Fees net, before allowance for loan losses Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums Carrying Amount, before allowance for loan losses Loans And Leases Receivable Gross Carrying Amount Mortgage loans on real estate amortization of origination fees. Balance at December 31, 2018 Mortgage Loans On Real Estate Loans originated and acquired Mortgage Loans On Real Estate New Mortgage Loans Additional fundings Mortgage Loans On Real Estate Other Additions Amortization of origination fees Mortgage Loans On Real Estate Amortization Of Origination Fees Collection of principal Mortgage Loans On Real Estate Collections Of Principal Balance at September 30, 2019 Unamortized loan discount (premium). Additional loan fundings under construction loan. Construction loan Construction Loan Interest rate Debt Instrument Interest Rate Stated Percentage Unamortized loan discount and premium Unamortized Loan Discount Premium Additional loan fundings under construction loan Additional Loan Fundings Under Construction Loan Weighted average risk rating. Risk rating one. Rating 1 Risk Rating One [Member] Risk rating two. Rating 2 Risk Rating Two [Member] Risk rating three. Rating 3 Risk Rating Three [Member] Risk rating four. Rating 4 Risk Rating Four [Member] Risk rating five. Rating 5 Risk Rating Five [Member] Carrying Value Weighted Average Risk Rating Weighted Average Risk Rating Number of loans selected for risk rate changes. Number of loans selected for risk rate changes Number Of Loans Selected For Risk Rate Changes Reserve on loans. Reserve Reserve On Loans Weighted average risk rating Number of investments purchased. Weighted average coupon rate. Schedule Of Available For Sale Securities [Table] Schedule Of Available For Sale Securities [Table] Commercial real estate collateralized loan obligation securities. CRE CLO Investments Commercial Real Estate Collateralized Loan Obligation Securities [Member] Commercial Mortgage-Backed Securities Commercial Mortgage Backed Securities [Member] Commercial mortgage backed securities and commercial real estate collateralized loan obligation securities. CMBS and CRE CLO Investments Commercial Mortgage Backed Securities And Commercial Real Estate Collateralized Loan Obligation Securities [Member] Schedule Of Available For Sale Securities [Line Items] Schedule Of Available For Sale Securities [Line Items] Number of investments purchased Number Of Investments Purchased Weighted average coupon rate Weighted Average Coupon Rate Aggregate purchase price of investments Number of investments. Number of investments sold. Number of Investments Number Of Investments Total cash consideration including selling costs and fees Proceeds From Sale Of Mortgage Backed Securities M B S Categorized As Available For Sale Number of investments sold Number Of Investments Sold Loss on sale of investments Gain Loss On Sales Of Mortgage Backed Securities M B S Available-for-sale securities, face amount. Face Amount Available For Sale Securities Face Amount Unamortized Premium (Discount), net Available For Sale Securities Unamortized Premium Discount Net Gross Unrealized Gain (Loss) Available For Sale Securities Accumulated Gross Unrealized Gain Loss Before Tax Estimated Fair Value Weighted average contractual Maturity of agreement. Weighted average contractual maturity, Terms Weighted Average Contractual Maturity Of Agreement Amortized Cost Available For Sale Securities Debt Maturities Amortized Cost [Abstract] Within five years Available For Sale Securities Debt Maturities Within Five Years Amortized Cost After one, within five years Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost After five years Available For Sale Securities Debt Maturities After Five Years Amortized Cost Total investment in CMBS and CRE CLO securities, at amortized cost and estimated fair value Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis Estimated Fair Value Available For Sale Securities Debt Maturities Fair Value [Abstract] Within five years Available For Sale Securities Debt Maturities Within Five Years Fair Value After one, within five years Available For Sale Securities Debt Maturities After One Through Five Years Fair Value After five years Available For Sale Securities Debt Maturities After Five Years Fair Value Total investment in CMBS and CRE CLO securities, at amortized cost and estimated fair value Other than temporary impairments on available-for-sale Other Than Temporary Impairment Losses Investments Availableforsale Securities Preferred shares par value per share. Liquidation preference notional amount. Variable interest entity retained ownership amount. Payments to acquire variable interest entity as an investment. Variable interest entities and collateralized loan obligation. Schedule of variable interest entities and collateralized loan obligation. Schedule Of Variable Interest Entities And Collateralized Loan Obligation [Table] Schedule Of Variable Interest Entities And Collateralized Loan Obligation [Table] Consolidated Entities Consolidated Entities [Axis] Consolidated Entities Consolidated Entities [Domain] FL2-Issuer. TPG Real Estate Finance 2018-FL2 Issuer, Ltd. and TPG RE Finance Trust 2018-FL2 Co-Issuer, LLC F L2 Issuer [Member] FL2-Co-Issuer. FL2-Co-Issuer F L2 Co Issuer [Member] FL2-retention holder. FL2-Retention Holder F L2 Retention Holder [Member] Lender Name Line Of Credit Facility [Axis] Line of Credit Facility, Lender Line Of Credit Facility Lender [Domain] FL2-Notes. FL2-Notes F L2 Notes [Member] FL2-Securities. FL2-Securities F L2 Securities [Member] FL2-Mortgage assets. F L2 Mortgage Assets F L2 Mortgage Assets [Member] FL1-Issuer. TPG Real Estate Finance 2018-FL1 Issuer, Ltd. and TPG RE Finance Trust 2018-FL1 Co-Issuer, LLC F L1 Issuer [Member] FL1-Co-Issuer. FL1-Co-Issuer F L1 Co Issuer [Member] FL1-retention holder. FL1-Retention Holder F L1 Retention Holder [Member] FL1-Notes. FL1-Notes F L1 Notes [Member] FL1-Securities. FL1-Securities F L1 Securities [Member] Variable Interest Entities And Collateralized Loan Obligation [Line Items] Variable Interest Entities And Collateralized Loan Obligation [Line Items] Principal amount of notes issued Debt Instrument Face Amount Preferred shares par value per share Preferred Shares Par Value Per Share Liquidation preference notional amount Liquidation Preference Notional Amount Variable interest entity retained ownership amount Variable Interest Entity Retained Ownership Amount Payments to acquire variable interest entity as an investment (principal amount) Payments To Acquire Variable Interest Entity As Investment Net cash proceeds utilizing replenishment feature. Additional interests related to replenishment. Repayment of existing borrowings including accrued interest. Net cash proceeds utilizing replenishment feature Net Cash Proceeds Utilizing Replenishment Feature Additional interests related to replenishment Additional Interests Related To Replenishment Repayment of existing borrowings including accrued interest Repayment Of Existing Borrowings Including Accrued Interest Debt issuance costs, gross Deferred Finance Costs Gross Unamortized issuance costs Interest expense excluding amortization of deferred financing costs Interest Expense Debt Excluding Amortization 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 Repurchase of securities consideration amount Collateralized Agreements Net proceed of secured revolving repurchase agreements Proceeds From Lines Of Credit Schedule Of Variable Interest Entities [Table] Schedule Of Variable Interest Entities [Table] Accrued Expenses Accrued Liabilities [Member] Balance Sheet Location Balance Sheet Location [Axis] Balance Sheet Location Balance Sheet Location [Domain] Loans held for investment. Loans Held for Investment Loans Held For Investment [Member] Accrued Interest Payable Accounts Payable And Accrued Liabilities [Member] Receivable Type Accounts Notes Loans And Financing Receivable By Receivable Type [Axis] Receivable Receivable Type [Domain] Accrued Interest Receivable Accrued Income Receivable [Member] Asset Class Fair Value By Asset Class [Axis] Asset Class Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation By Asset Class [Domain] Accounts receivable from servicer and trustee. Accounts Receivable from Servicer/Trustee Accounts Receivable From Servicer And Trustee [Member] Cash and Cash Equivalents Cash And Cash Equivalents [Member] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] ASSETS Variable Interest Entity Consolidated Carrying Amount Assets [Abstract] Total Assets Variable Interest Entity Consolidated Carrying Amount Assets LIABILITIES Variable Interest Entity Consolidated Carrying Amount Liabilities [Abstract] Total Liabilities Variable Interest Entity Consolidated Carrying Amount Liabilities Collateral (loans), Outstanding Principal Debt Instrument Collateral Amount Collateral (loans), Carrying Value Debt, Face Value Debt, Carrying Value BMO Harris bank. BMO Harris Bank B M O Harris Bank [Member] Institutional lender. Institutional Lender Institutional Lender [Member] Goldman Sachs Bank. Goldman Sachs Goldman Sachs Bank [Member] Barclays bank PLC. Barclays Barclays Bank P L C [Member] Wells Fargo Bank. Wells Fargo Wells Fargo Bank [Member] Morgan Stanley Bank. Morgan Stanley Morgan Stanley Bank [Member] JP Morgan Chase Bank. JP Morgan J P Morgan Chase Bank [Member] United States Bank. US Bank United States Bank [Member] Royal Bank of Canada. Royal Bank of Canada Royal Bank Of Canada [Member] Bank of America. Bank of America Bank Of America [Member] Citibank. Citibank Citibank [Member] Loans Investment. Loans Investment Loans Investment [Member] Debt instrument interest rate at four point seven percentage. Debt Instrument, Interest Rate at 4.7% Debt Instrument Interest Rate At Four Point Seven Percentage [Member] Debt Instrument Interest Rate At Six point Two Percentage. Debt Instrument, Interest Rate at 6.2% Debt Instrument Interest Rate At Six Point Two Percentage [Member] Debt instrument interest rate at four point zero percentage. Debt Instrument, Interest Rate at 4.0% Debt Instrument Interest Rate At Four Point Zero Percentage [Member] Debt instrument interest rate at three point six percentage. Debt Instrument, Interest Rate at 3.6% Debt Instrument Interest Rate At Three Point Six Percentage [Member] Debt instrument interest rate at three point seven percentage. Debt Instrument, Interest Rate at 3.7% Debt Instrument Interest Rate At Three Point Seven Percentage [Member] Debt instrument interest rate at four point one percentage. Debt Instrument, Interest Rate at 4.1% Debt Instrument Interest Rate At Four Point One Percentage [Member] Debt instrument interest rate at three point one percentage. Debt Instrument, Interest Rate at 3.1% Debt Instrument Interest Rate At Three Point One Percentage [Member] Debt instrument interest rate at three point zero percentage. Debt Instrument, Interest Rate at 3.0% Debt Instrument Interest Rate At Three Point Zero Percentage [Member] Debt instrument interest rate at two point nine percentage. Debt Instrument, Interest Rate at 2.9% Debt Instrument Interest Rate At Two Point Nine Percentage [Member] Debt instrument interest rate at four point two percentage. Debt Instrument, Interest Rate at 4.2% Debt Instrument Interest Rate At Four Point Two Percentage [Member] Debt instrument interest rate at four point three percentage. Debt Instrument, Interest Rate at 4.3% Debt Instrument Interest Rate At Four Point Three Percentage [Member] Asset specific financing, term loan facility, secured revolving repurchase agreements and senior secured and secured credit agreements. Asset Specific Financing, Term Loan Facility, Secured Revolving Repurchase Agreements and Senior Secured and Secured Credit Agreements Asset Specific Financing Term Loan Facility Secured Revolving Repurchase Agreements And Senior Secured And Secured Credit Agreements [Member] Credit Facility Credit Facility [Axis] Credit Facility Credit Facility [Domain] Senior secured and secured credit agreements. Senior Secured and Secured Credit Agreements Senior Secured And Secured Credit Agreements [Member] Long-term Debt, Type Longterm Debt Type [Axis] Long-term Debt, Type Longterm Debt Type [Domain] Debt instrument interest rate at four point six percentage. Debt Instrument, Interest Rate at 4.6% Debt Instrument Interest Rate At Four Point Six Percentage [Member] Debt instrument interest rate at four point eight percentage. Debt Instrument, Interest Rate at 4.8% Debt Instrument Interest Rate At Four Point Eight Percentage [Member] Asset-specific financing, secured revolving repurchase agreements and senior secured and secured credit agreements. Asset-specific Financing, Secured Revolving Repurchase Agreements and Senior Secured and Secured Credit Agreements Asset Specific Financing Secured Revolving Repurchase Agreements And Senior Secured And Secured Credit Agreements [Member] Maturity Date Debt Instrument Maturity Date Index Rate Debt Instrument Description Of Variable Rate Basis Weighted Average Credit Spread Debt Weighted Average Interest Rate Interest Rate Commitment Amount Maximum Current Availability Debt Instrument Unused Borrowing Capacity Amount Balance Outstanding Debt Instrument Carrying Amount Principal Balance of Collateral Recourse guarantee percentage. Secured credit agreement. Secured Credit Agreement Secured Credit Agreement [Member] Recourse guarantee percentage Recourse Guarantee Percentage Legal Entity Legal Entity [Axis] Entity Entity [Domain] TPG RE Finance Trust Holdco, LLC. Holdco T P G R E Finance Trust Holdco Limited Liability Company [Member] CMBS Investments Statistical Measurement Range [Axis] Statistical Measurement Range [Member] Minimum Minimum [Member] Maximum Maximum [Member] Senior secured credit agreement. Senior Secured Credit Agreement Senior Secured Credit Agreement [Member] Number of repurchase agreements. Number of repurchase agreements Number Of Repurchase Agreements Line of credit facility, maximum borrowing capacity Line Of Credit Facility Maximum Borrowing Capacity Line of credit facility, initial maturity date Line Of Credit Facility Expiration Date1 Assets sold under agreements to repurchase unpaid principal balance of collateral. Repurchase agreement counterparty amount at risk percent of stockholders equity. Schedule Of Repurchase Agreement Counterparty [Table] Schedule Of Repurchase Agreement Counterparty [Table] Goldman Sachs Bank Wells Fargo Bank Morgan Stanley Bank JP Morgan Chase Bank Commercial mortgage loans and commercial mortgage backed securities and commercial real estate collateralized loan obligation securities. Commercial Mortgage Loans And CMBS and CRE CLO Investments Commercial Mortgage Loans And Commercial Mortgage Backed Securities And Commercial Real Estate Collateralized Loan Obligation Securities [Member] Repurchase Agreement Counterparty [Line Items] Repurchase Agreement Counterparty [Line Items] UPB of Collateral Assets Sold Under Agreements To Repurchase Unpaid Principal Balance Of Collateral Carrying Value of Collateral Assets Sold Under Agreements To Repurchase Carrying Amounts Amounts Payable under Secured Revolving Repurchase Agreements Assets Sold Under Agreements To Repurchase Repurchase Liability Net Counterparty Exposure Repurchase Agreement Counterparty Amount At Risk Percent of Stockholders' Equity Repurchase Agreement Counterparty Amount At Risk Percent Of Stockholders Equity Days to Extended Maturity Repurchase Agreement Counterparty Weighted Average Maturity Of Agreements1 Premium discount and origination fees. Interest receivable Premium, discount and origination fees Premium Discount And Origination Fees Unamortized deferred financing fees Unamortized Debt Issuance Expense Percentage of assets pledged as collateral. Debt instrument, basis spread on variable rate Debt Instrument Basis Spread On Variable Rate1 Percentage of individual pledged assets Percentage Of Assets Pledged As Collateral Debt Instrument, outstanding borrowing Credit agreement initiation date Line Of Credit Facility Initiation Date1 Line of credit facility, outstanding amount Line Of Credit Assets pledged as collateral term. Individual pledged assets term Assets Pledged As Collateral Term Asset-specific financing principal amount Initial maturity date Guaranteed capped rate of outstanding obligations. Guaranteed capped rate of outstanding obligations Guaranteed Capped Rate Of Outstanding Obligations Secured revolving repurchase agreements. Secured Revolving Repurchase Agreements Secured Revolving Repurchase Agreements [Member] 2019 Long Term Debt Maturities Repayments Of Principal Remainder Of Fiscal Year 2020 Long Term Debt Maturities Repayments Of Principal In Year Two 2021 Long Term Debt Maturities Repayments Of Principal In Year Three 2022 Long Term Debt Maturities Repayments Of Principal In Year Four 2023 Long Term Debt Maturities Repayments Of Principal In Year Five Thereafter Long Term Debt Maturities Repayments Of Principal After Year Five Total Long Term Debt Money market funds Money Market Funds At Carrying Value Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Abstract] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Carrying Value Fair Value By Measurement Basis [Axis] Fair Value Disclosure Item Amounts [Default] Portion At Fair Value Fair Value Disclosure [Member] Fair Value Measurement Fair Value Disclosure Item Amounts [Domain] Carrying Value Carrying Reported Amount Fair Value Disclosure [Member] Estimate of Fair Value Measurement Estimate Of Fair Value Fair Value Disclosure [Member] Measurement Frequency Fair Value By Measurement Frequency [Axis] Measurement Frequency Fair Value Measurement Frequency [Domain] Fair Value Measurements Nonrecurring Fair Value Measurements Nonrecurring [Member] Fair Value Hierarchy and NAV Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Hierarchy and NAV Fair Value Measurements Fair Value Hierarchy [Domain] Level I Fair Value Inputs Level1 [Member] Level II Fair Value Inputs Level2 [Member] Level III Fair Value Inputs Level3 [Member] Liability Class Fair Value By Liability Class [Axis] Fair Value by Liability Class Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation By Liability Class [Domain] Secured financing arrangements. Secured Financing Arrangements Secured Financing Arrangements [Member] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Financial Assets Assets Fair Value Disclosure [Abstract] Financial Assets, Nonrecurring Assets Fair Value Disclosure Financial Liabilities Liabilities Fair Value Disclosure [Abstract] Financial Liabilities, Nonrecurring Liabilities Fair Value Disclosure Fair value of assets and liabilities transfers amount. Market spread Transfers of financial assets or liabilities with in fair value hierarchy Fair Value Of Assets And Liabilities Transfers Amount Loans held for investment fair value disclosure nonrecurring. Loans held for investment weighted average gross spread. Loans held for investment, weighted average maturity period. Estimated fair value of loans held for investment Loans Held For Investment Fair Value Disclosure Nonrecurring Weighted average gross spread percentage Loans Held For Investment Weighted Average Gross Spread Weighted average maturity period Loans Held For Investment Weighted Average Maturity Period Income tax. Income tax. Income Tax [Table] Income Tax [Table] Ownership Ownership [Axis] Ownership Ownership [Domain] Real estate investment trust subsidiaries. REIT Subsidiaries Real Estate Investment Trust Subsidiaries [Member] TRSs Subsidiaries [Member] Income Tax [Line Items] Income Tax [Line Items] Equity interest percentage by parent Minority Interest Ownership Percentage By Parent Reserve for uncertain income tax positions Deferred Tax Assets Valuation Allowance Interest for underpayment of income taxes Unrecognized Tax Benefits Interest On Income Taxes Expense Penalties for underpayment of income taxes Unrecognized Tax Benefits Income Tax Penalties Expense Current portion of income tax expense Current Federal State And Local Tax Expense Benefit Effective income tax rate Effective Income Tax Rate Continuing Operations Deferred tax asset Deferred Tax Assets Net Deferred tax liabilities Deferred Income Tax Liabilities Management fee and incentive management fee description. Schedule Of Related Party Transactions By Related Party [Table] Schedule Of Related Party Transactions By Related Party [Table] Related Party Transaction Related Party Transaction [Axis] Related Party Transaction Related Party Transaction [Domain] Management agreement. Management Agreement Management Agreement [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Description of management and incentive management fee calculation Management Fee And Incentive Management Fee Description Management fee payable per annum. Management fee payable per quarter. Percentage of management fee on stockholders equity. Percentage of management fee on stockholders equity per quarter. Management fee payable per annum Management Fee Payable Per Annum Management fee payable per quarter Management Fee Payable Per Quarter Percentage of annual base management fee Percentage Of Management Fee On Stockholders Equity Percentage of quarterly base management fee Percentage Of Management Fee On Stockholders Equity Per Quarter Related party transaction description of incentive management fee. Incentive management fee percentage of Core Earnings less seven percent of stockholders' equity. Percentage multiplied by stockholders' equity (included in incentive management fee). Incentive management fee, description Related Party Transaction Description Of Incentive Management Fee 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 Percentage multiplied by stockholders equity included in incentive management fee Percentage Multiplied By Stockholders Equity Included In Incentive Management Fee Management fees and incentive management fees incurred. Management fees and incentive management fees paid. Management Agreement fees incurred Management Fees And Incentive Management Fees Incurred Management Agreement fees paid Management Fees And Incentive Management Fees Paid Management fees and incentive management fees payable Reimbursable expenses incurred. Reimbursable expenses remained outstanding. Amount incurred and reimbursable Reimbursable Expenses Incurred Reimbursable expenses remained outstanding Reimbursable Expenses Remained Outstanding Related parties termination fee description. Termination fee, description Related Parties Termination Fee Description Dividends declared Dividends Common Stock Stock Undistributed net income attributable to common stockholders Undistributed Earnings Loss Available To Common Shareholders Basic Net Income Attributable to TPG RE Finance Trust, Inc. Participating Securities' Share in Earnings Undistributed Earnings Loss Allocated To Participating Securities Basic Net Income Attributable to Common Stockholders Undistributed Earnings Weighted Average Common Shares Outstanding, Basic and Diluted Weighted Average Number Of Share Outstanding Basic And Diluted Per Common Share Amount, Basic and Diluted Earnings Per Share Basic And Diluted Common stock, capital shares reserved for future issuance value. Schedule Of Stock By Class [Table] Schedule Of Stock By Class [Table] Collaborative Arrangement and Arrangement Other than Collaborative Type Of Arrangement [Axis] Collaborative Arrangement and Arrangement Other than Collaborative Arrangements And Nonarrangement Transactions [Member] Equity distribution agreement. Equity Distribution Agreement Equity Distribution Agreement [Member] Series A Preferred Stock Series A Preferred Stock [Member] Common stock and class A common stock. Common Stock And Class A Common Stock Common Stock And Class A Common Stock [Member] Class Of Stock [Line Items] Class Of Stock [Line Items] Aggregate gross sales price of common stock Common Stock Capital Shares Reserved For Future Issuance Value Percentage of commission to sales agent. Percentage of commission to each sales agent, on gross sales price of shares sold Percentage Of Commission To Sales Agent Number of common shares issued Dividend rate Preferred Stock Dividend Rate Percentage Preferred stock, liquidation preference per annum Preferred Stock Liquidation Preference Value Dividend declared and paid. Dividend declared and paid Dividend Declared And Paid Dividends on preferred stock Dividend declared per share Dividends Payable Amount Per Share Unpaid dividends Dividend payable date Dividend Payable Date To Be Paid Day Month And Year Dividend record date Dividends Payable Date Of Record Day Month And Year Dividends Dividends Dividend payable declared date Dividends Payable Date Declared Day Month And Year Other comprehensive (loss) income Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Award Type Award Type [Axis] Award Type Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Classification of common stock representing ownership interest in a corporation. 2017 Equity Incentive Plan Two Thousand Seventeen Equity Incentive Plan [Member] Vesting Vesting [Axis] Vesting Vesting [Domain] 2019 Share Based Compensation Award Tranche One [Member] 2020 Share Based Compensation Award Tranche Two [Member] 2021 Share Based Compensation Award Tranche Three [Member] Member stands for share based compensation award tranche four. 2022 Share Based Compensation Award Tranche Four [Member] Deferred stock units. Deferred Stock Units Deferred Stock Units [Member] Title of Individual Title Of Individual [Axis] Title of Individual Title Of Individual With Relationship To Entity [Domain] Board of Directors Director [Member] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Number of shares authorized under the plan Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized Share based compensation arrangement by share based payment award shares outstanding number. Share based compensation arrangement by share based payment award, number of shares expected to vest in period. Share vesting installment period Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 Shares of common stock expected to vest Share Based Compensation Arrangement By Share Based Payment Award Shares Outstanding Number Shares of common stock expected to vest Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Expected To Vest In Period Total unrecognized compensation cost relating to unvested share-based compensation arrangements Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Unrecognized compensation cost, recognition period Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Share based compensation arrangement by share based payment award equity instrument other than options aggregate stock issued value. Deferred stock units, value Share Based Compensation Arrangement By Share Based Payment Award Equity Instrument Other Than Options Aggregate Stock Issued Value Dividends common stock paid-in-kind, shares. Accrued shares of common stock for dividends Dividends Common Stock Paidinkind Shares Unfunded commitments loans held for investment. Unfunded commitments related to loans held for investment Unfunded Commitments Loans Held For Investment Percentage of loan commitment principal amount. Percentage of loans and leases receivable unpaid principal balance. Office Office Building [Member] Multifamily Multifamily [Member] Mixed use properties. Mixed Use Mixed Use Properties [Member] Hotel Hotel [Member] Retail Retail Site [Member] Condominium. Condominium Condominiums [Member] Industrial Property Industrial Property [Member] Other Other Property [Member] Loan Commitment Unfunded Commitment % of Loan Commitment Percentage Of Loan Commitment Principal Amount Loan UPB % of Loan UPB Percentage Of Loans And Leases Receivable Unpaid Principal Balance Geographical Statement Geographical [Axis] Geographical Segment Geographical [Domain] East. East East [Member] South. South South [Member] West. West West [Member] Midwest. Midwest Midwest [Member] Various. Various Various [Member] % Loan Commitment % Loan UPB Short-term Debt, Type Short Term Debt Type [Axis] Short-term Debt, Type Short Term Debt Type [Domain] Bridge Bridge Loan [Member] Light transitional loan. Light Transitional Light Transitional Loan [Member] Moderate transitional loan. Moderate Transitional Moderate Transitional Loan [Member] Construction loan. Construction Construction Loan [Member] Number of first mortgage loans closed. Subsequent Event [Table] Subsequent Event [Table] Senior mortgage loan. Senior Mortgage Loan Senior Mortgage Loan [Member] Subsequent Event Type Subsequent Event Type [Axis] Subsequent Event Type Subsequent Event Type [Domain] Subsequent Events Subsequent Event [Member] Credit Rating, Standard & Poor's Credit Rating Standard Poors [Axis] External Credit Rating, Standard & Poor's External Credit Rating Standard Poors [Member] Category three risk rated loan. Category 3 Risk Rated Loan Category Three Risk Rated Loan [Member] Category two risk rated loan. Category 2 Risk Rated Loan Category Two Risk Rated Loan [Member] FL3 Issuer. TPG Real Estate Finance 2019-FL3 Issuer, Ltd. and TPG RE Finance Trust 2019-FL3 Co-Issuer, LLC F L3 Issuer [Member] FL3 Co-Issuer. FL3 Co-Issuer F L3 Co Issuer [Member] FL3 Retention Holder. FL3 Retention Holder F L3 Retention Holder [Member] FL3 Notes. FL3 Notes F L3 Notes [Member] FL3 Securities. FL3 Securities F L3 Securities [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Number of first mortgage loans closed Number Of First Mortgage Loans Closed Loan commitment amount Number of first mortgage loans repayments. Proceeds from repayments of loan commitments. Proceeds from loan repayments unpaid principal balance. Number of first mortgage loans repayments Number Of First Mortgage Loans Repayments Loan repayments related to mortgage loans, loan commitment Proceeds From Repayments Of Loan Commitments Loan repayments related to mortgage loans, unpaid principal Proceeds From Loan Repayments Unpaid Principal Balance Principal amount of notes issued Dividend amount per share Dividends Payable