Variable Interest Entities and Collateralized Loan Obligations - Schedule of Borrowings and Corresponding Collateral (Details) - USD ($) $ in Thousands		Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Collateral (loans), Outstanding principal		$ 1,357,729	$ 2,262,311
Debt, Face value		3,144,276	3,239,506
Debt, Carrying value	[1]	2,749,901	1,825,568
Collateralized Loan Obligation
Debt Instrument [Line Items]
Collateral (loans), Outstanding principal		3,363,691	2,230,276
Collateral (loans), Carrying value		3,332,085	2,230,276
Debt, Face value		2,762,510	1,834,760
Debt, Carrying value		$ 2,749,901	$ 1,825,568

[1] The Company’s consolidated Total Assets and Total Liabilities as of September 30, 2021 include assets and liabilities of variable interest entities (“VIEs”) of $3.5 billion and $2.8 billion, respectively. The Company’s consolidated Total Assets and Total Liabilities as of December 31, 2020 include assets and liabilities of VIEs of $2.3 billion and $1.8 billion, respectively. These assets can be used only to satisfy obligations of the VIEs, and creditors of the VIEs have recourse only to these assets, and not to TPG RE Finance Trust, Inc. See Note 6 to the Consolidated Financial Statements for details