Consolidated Statement of Changes in Equity - USD ($) $ in Thousands	Total		Cumulative Effect of Adoption of ASU 2016-13	Series A Preferred Stock	Class A Common Stock	Series B Preferred Stock	Common Stock	Additional Paid-in-Capital	Accumulated Deficit	Accumulated Deficit Cumulative Effect of Adoption of ASU 2016-13	Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2017	$ 1,201,331				$ 1		$ 60	$ 1,216,112	$ (14,808)		$ (34)
Balance, Shares at Dec. 31, 2017				125	1,178,618		59,440,112
Issuance of Common Stock	139,440						$ 7	139,433
Issuance of Common Stock, Shares							7,019,352
Conversions of Class A Common Stock to Common Stock, Shares					(35,305)		35,305
Repurchases and Retired of Common Stock	(8,937)							(9)	(8,928)
Repurchase and retirement of Common Stock, Shares							(474,382)
Redemption of Series A Preferred Stock	(125)							(125)
Redemption of Series A Preferred Stock, Shares				(125)
Equity Issuance, Shelf Registration, and Equity Distribution Agreement Transaction Costs	(1,074)							(1,074)
Amortization of Share Based Compensation	665							665
Net (Loss) Income	106,941								106,941
Other Comprehensive Income (Loss)	(1,951)										(1,951)
Dividends on Preferred Stock	(3)								(3)
Dividends on Common Stock (Dividends Declared per Share)	(107,152)								(107,152)
Dividends on Class A Common Stock (Dividends Declared per Share)	(1,965)								(1,965)
Balance at Dec. 31, 2018	1,327,170				$ 1		$ 67	1,355,002	(25,915)		(1,985)
Balance, Shares at Dec. 31, 2018					1,143,313		66,020,387
Issuance of Common Stock	174,549						$ 8	174,541
Issuance of Common Stock, Shares							8,875,760
Issuance of SubREIT Preferred Stock	125							125
Issuance of SubREIT Preferred Stock, Shares				125
Conversions of Class A Common Stock to Common Stock, Shares					(6,648)		6,648
Repurchases and Retired of Common Stock	(327)							(285)	(42)
Repurchase and retirement of Common Stock, Shares							(16,682)
Equity Issuance, Shelf Registration, and Equity Distribution Agreement Transaction Costs	(1,004)							(1,004)
Amortization of Share Based Compensation	2,556							2,556
Net (Loss) Income	126,313								126,313
Other Comprehensive Income (Loss)	3,036										3,036
Dividends on Preferred Stock	(15)								(15)
Dividends on Common Stock (Dividends Declared per Share)	(126,488)								(126,488)
Dividends on Class A Common Stock (Dividends Declared per Share)	(1,961)								(1,961)
Balance at Dec. 31, 2019	1,503,954	[1]	$ (19,645)		$ 1		$ 75	1,530,935	(28,108)	$ (19,645)	1,051
Balance, Shares at Dec. 31, 2019				125	1,136,665		74,886,113
Accounting Standards Update [Extensible List]			us-gaap:AccountingStandardsUpdate201613Member
Issuance of Series B Cumulative Redeemable Preferred Stock						$ 210,598
Issuance of Warrants to Purchase Common Stock	14,402							14,402
Issuance of Common Stock	12,895						$ 1	12,894
Issuance of Common Stock, Shares							819,425
Conversions of Class A Common Stock to Common Stock					$ (1)		$ 1
Conversions of Class A Common Stock to Common Stock, Shares					(1,136,665)		1,136,665
Repurchase and retirement of Common Stock, Shares							(55,197)
Equity Issuance, Shelf Registration, and Equity Distribution Agreement Transaction Costs	(1,129)							(1,129)
Temporary Equity, Equity Issuance, Shelf Registration, and Equity Distribution Agreement Transaction Costs						(14,236)
Amortization of Share Based Compensation	5,768							5,768
Net (Loss) Income	(136,826)								(136,826)
Other Comprehensive Income (Loss)	(1,051)										$ (1,051)
Dividends on Preferred Stock	(14,689)								(14,689)
Accretion of Discount on Series B Cumulative Redeemable Preferred Stock	(3,189)							(3,189)
Temporary Equity, Accretion of Discount on Series B Cumulative Redeemable Preferred Stock						3,189
Dividends on Common Stock (Dividends Declared per Share)	(93,590)								(93,590)
Balance at Dec. 31, 2020	$ 1,266,900	[1]					$ 77	$ 1,559,681	$ (292,858)
Balance, Shares at Dec. 31, 2020				125			76,787,006
Temporary Equity, Balance at Dec. 31, 2020						$ 199,551

[1] The Company’s consolidated Total Assets and Total Liabilities at December 31, 2020 include the assets and liabilities of variable interest entities (“VIEs”) of $2.3 billion and $1.8 billion , respectively. The Company’s Total Assets and Total Liabilities at December 31, 2019 include assets and liabilities of VIEs of $2.2 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 those assets, and not to TPG RE Finance Trust, Inc. See Note 6 to the Consolidated Financial Statements for details