Related Party Transactions - Additional Information (Details) - USD ($)			3 Months Ended		6 Months Ended
		Jun. 16, 2021	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Related Party Transaction [Line Items]
Incentive management fee percentage of core earnings less seven percent of stockholders equity					20.00%
Affiliated Entity
Related Party Transaction [Line Items]
Payable to affiliates	[1]		$ 5,949,000		$ 5,949,000		$ 5,984,000
Series B Preferred Stock
Related Party Transaction [Line Items]
Redemption of Series B preferred stock		9,000,000
Series C Preferred Stock
Related Party Transaction [Line Items]
Preferred stock shares outstanding			8,050,000		8,050,000		8,050,000
Management fees
Related Party Transaction [Line Items]
Percentage of annual base management fee					1.50%
Percentage of quarterly base management fee					0.375%
Percentage multiplied by stockholders equity included in incentive management fee					7.00%
Incentive management fee			$ 0	$ 5,200,000	$ 0	$ 5,200,000
Management fees | Affiliated Entity
Related Party Transaction [Line Items]
Payable to affiliates			5,900,000		5,900,000		$ 6,000,000
Management fees | Minimum
Related Party Transaction [Line Items]
Management fee payable per annum			250,000		250,000
Management fee payable per quarter			62,500		62,500
Post-IPO Management Agreement
Related Party Transaction [Line Items]
Amount incurred and reimbursable			300,000	$ 300,000	500,000	$ 500,000
Reimbursable expenses remained outstanding			$ 0		$ 0		$ 0

[1] The Company’s consolidated Total Assets and Total Liabilities as of June 30, 2023 include assets and liabilities of variable interest entities (“VIEs”) of $2.8 billion and $2.1 billion, respectively. The Company’s consolidated Total Assets and Total Liabilities as of December 31, 2022 include assets and liabilities of VIEs of $3.3 billion and $2.5 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 5 to the Consolidated Financial Statements for details.(2)Includes $28.0 million and $17.3 million of reserve for expected losses for unfunded loan commitments as of June 30, 2023 and December 31, 2022, respectively.