Debt instrument weighted average maturity period.

No definition available.

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- Definition

Loans held for investment, aggregate unpaid principal balance percentage.

+ References

No definition available.

+ Details

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- Definition

Number of loans.

+ References

No definition available.

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- Definition

Other loan held for investment, net.

+ References

No definition available.

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- Definition

Securitized Debt Obligation Carrying Value

+ References

No definition available.

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- Definition

Securitized Debt Obligations

+ References

No definition available.

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- Definition

Amount of amortization expense attributable to debt issuance costs.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

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- Definition

The aggregate amount of the participation liability at the end of the accounting period.

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Variable Interest Entities and Collateralized Loan Obligations - Schedule of Borrowings and Corresponding Collateral (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022 USD ($) loan	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) loan	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) loan
Debt Instrument [Line Items]
Other loan held for investment, net	$ 1,400		$ 1,400
Interest expense	45,072	$ 20,979	95,581	$ 63,286
Amortization of deferred financing costs			10,637	11,258
FL2-Notes
Debt Instrument [Line Items]
Loans held for investment, aggregate unpaid principal balance percentage					16.40%
TRTX 2019-FL3
Debt Instrument [Line Items]
Loans held for investment, aggregate unpaid principal balance percentage					22.50%
TRTX 2021-FL4
Debt Instrument [Line Items]
Loans held for investment, aggregate unpaid principal balance percentage					25.40%
TRTX 2022-FL5
Debt Instrument [Line Items]
Amortization of deferred financing costs			1,100
Collateralized loan obligations
Debt Instrument [Line Items]
Interest expense	26,400	13,700	58,800	35,700
Amortization of deferred financing costs	$ 1,900	$ 2,200	$ 6,000	$ 5,000
Collateralized loan obligations \| FL3 Mortgage Assets
Debt Instrument [Line Items]
Loans held for investment, aggregate unpaid principal balance percentage	13.40%		13.40%
Collateralized loan obligations \| Collateral (Loan Investments)
Debt Instrument [Line Items]
Weighted average credit spread (in percent)	3.23%		3.23%		3.24%
Weighted average maturity (years)			2 years 8 months 12 days		2 years 8 months 12 days
Collateralized loan obligations \| Debt (Notes Issued)
Debt Instrument [Line Items]
Number of loans \| loan	3		3		3
Collateral (loans), outstanding principal	$ 2,467,526		$ 2,467,526		$ 2,555,988
Collateral (loans), carrying value	$ 2,456,668		$ 2,456,668		$ 2,545,691
Weighted average credit spread (in percent)	1.78%		1.78%		1.55%
Weighted average maturity (years)			15 years 1 month 6 days		15 years 2 months 12 days
Collateralized loan obligations \| LIBOR \| Collateral (Loan Investments)
Debt Instrument [Line Items]
Number of loans \| loan	55		55		60
Collateralized loan obligations \| FL2-Notes \| Collateral (Loan Investments)
Debt Instrument [Line Items]
Weighted average credit spread (in percent)					3.39%
Weighted average maturity (years)					2 years
Collateralized loan obligations \| FL2-Notes \| Debt (Notes Issued)
Debt Instrument [Line Items]
Weighted average credit spread (in percent)					1.56%
Weighted average maturity (years)					15 years 10 months 24 days
Collateralized loan obligations \| FL2-Notes \| LIBOR \| Collateral (Loan Investments)
Debt Instrument [Line Items]
Number of loans \| loan					17
Collateralized loan obligations \| FL2-Notes \| LIBOR \| Debt (Notes Issued)
Debt Instrument [Line Items]
Number of loans \| loan					1
Collateral (loans), outstanding principal					$ 600,001
Collateral (loans), carrying value					$ 599,394
Collateralized loan obligations \| TRTX 2019-FL3 \| Collateral (Loan Investments)
Debt Instrument [Line Items]
Weighted average credit spread (in percent)	3.19%		3.19%		3.19%
Weighted average maturity (years)			1 year 8 months 12 days		2 years 2 months 12 days
Collateralized loan obligations \| TRTX 2019-FL3 \| Debt (Notes Issued)
Debt Instrument [Line Items]
Weighted average credit spread (in percent)	1.72%		1.72%		1.48%
Weighted average maturity (years)			12 years		12 years 9 months 18 days
Collateralized loan obligations \| TRTX 2019-FL3 \| LIBOR \| Collateral (Loan Investments)
Debt Instrument [Line Items]
Number of loans \| loan	13		13		19
Collateralized loan obligations \| TRTX 2019-FL3 \| SOFR \| Debt (Notes Issued)
Debt Instrument [Line Items]
Number of loans \| loan	1		1		1
Collateral (loans), outstanding principal	$ 522,995		$ 522,995		$ 918,487
Collateral (loans), carrying value	$ 522,268		$ 522,268		$ 915,451
Collateralized loan obligations \| TRTX 2021-FL4 \| Collateral (Loan Investments)
Debt Instrument [Line Items]
Weighted average credit spread (in percent)	3.18%		3.18%		3.19%
Weighted average maturity (years)			2 years 9 months 18 days		3 years 1 month 6 days
Collateralized loan obligations \| TRTX 2021-FL4 \| Debt (Notes Issued)
Debt Instrument [Line Items]
Weighted average credit spread (in percent)	1.60%		1.60%		1.60%
Weighted average maturity (years)			15 years 4 months 24 days		16 years 2 months 12 days
Collateralized loan obligations \| TRTX 2021-FL4 \| LIBOR
Debt Instrument [Line Items]
Participating interest	$ 106,400		$ 106,400
Collateralized loan obligations \| TRTX 2021-FL4 \| LIBOR \| Collateral (Loan Investments)
Debt Instrument [Line Items]
Number of loans \| loan	24		24		24
Collateralized loan obligations \| TRTX 2021-FL4 \| LIBOR \| Debt (Notes Issued)
Debt Instrument [Line Items]
Number of loans \| loan	1		1		1
Collateral (loans), outstanding principal	$ 1,037,500		$ 1,037,500		$ 1,037,500
Collateral (loans), carrying value	$ 1,032,609		$ 1,032,609		1,030,846
Collateralized loan obligations \| TRTX 2022-FL5 \| Collateral (Loan Investments)
Debt Instrument [Line Items]
Weighted average credit spread (in percent)	3.32%		3.32%
Weighted average maturity (years)			3 years 6 months
Collateralized loan obligations \| TRTX 2022-FL5 \| Debt (Notes Issued)
Debt Instrument [Line Items]
Weighted average credit spread (in percent)	2.02%		2.02%
Weighted average maturity (years)			16 years 4 months 24 days
Collateralized loan obligations \| TRTX 2022-FL5 \| LIBOR
Debt Instrument [Line Items]
Participating interest	$ 87,800		$ 87,800
Collateralized loan obligations \| TRTX 2022-FL5 \| LIBOR \| Collateral (Loan Investments)
Debt Instrument [Line Items]
Number of loans \| loan	18		18
Collateralized loan obligations \| TRTX 2022-FL5 \| Compounded SOFR \| Debt (Notes Issued)
Debt Instrument [Line Items]
Number of loans \| loan	1		1
Collateral (loans), outstanding principal	$ 907,031		$ 907,031
Collateral (loans), carrying value	$ 901,791		$ 901,791
Collateralized loan obligations \| FL4 Securities
Debt Instrument [Line Items]
Loans held for investment, aggregate unpaid principal balance percentage	23.40%		23.40%
Collateralized loan obligations \| FL5 Securities
Debt Instrument [Line Items]
Loans held for investment, aggregate unpaid principal balance percentage	20.20%		20.20%
Collateral Assets \| Collateralized loan obligations \| LIBOR
Debt Instrument [Line Items]
Collateral (loans), outstanding principal	$ 3,038,696		$ 3,038,696		3,164,710
Collateral (loans), carrying value	2,930,432		2,930,432		3,138,603
Collateral Assets \| Collateralized loan obligations \| FL2-Notes \| LIBOR
Debt Instrument [Line Items]
Collateral (loans), outstanding principal					805,685
Collateral (loans), carrying value					795,815
Collateral Assets \| Collateralized loan obligations \| TRTX 2019-FL3 \| LIBOR
Debt Instrument [Line Items]
Collateral (loans), outstanding principal	713,696		713,696		1,109,229
Collateral (loans), carrying value	660,103		660,103		1,100,497
Collateral Assets \| Collateralized loan obligations \| TRTX 2021-FL4 \| LIBOR
Debt Instrument [Line Items]
Collateral (loans), outstanding principal	1,250,000		1,250,000
Collateral (loans), carrying value	1,211,718		1,211,718
Collateralized loan obligations \| Collateralized loan obligations \| TRTX 2021-FL4 \| LIBOR
Debt Instrument [Line Items]
Collateral (loans), outstanding principal					1,249,796
Collateral (loans), carrying value					$ 1,242,291
Collateralized loan obligations \| Collateralized loan obligations \| TRTX 2022-FL5 \| LIBOR
Debt Instrument [Line Items]
Collateral (loans), outstanding principal	1,075,000		1,075,000
Collateral (loans), carrying value	$ 1,058,611		$ 1,058,611