Repurchase Agreements, Loan Participations Sold, Notes Payable and Secured Term Loan, Net - Summary of Loan Participations Sold (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Jan. 31, 2022	Jun. 02, 2021	Dec. 31, 2021		Dec. 31, 2020
Loan Participations Sold [Line Items]
Contractual Maturity Date	Jul. 05, 2022	Feb. 09, 2024
Maximum Extension Date	Jan. 04, 2023
Par Value			$ 168,322	[1]	$ 519,420	[2]
Carrying value			167,744	[1]	516,484	[2]
Loan held by company			$ 420,844	[1]	$ 888,232	[2]
Variable Loan [Member]
Loan Participations Sold [Line Items]
Contractual Maturity Date			Aug. 01, 2022	[3]	Aug. 01, 2022
Maximum Extension Date			Aug. 01, 2023	[3]	Aug. 01, 2023
Par Value			$ 148,322	[3]	$ 189,750
Carrying value			148,133	[3]	188,995
Loan held by company			$ 290,783	[3]	$ 370,541
Fixed Loan
Loan Participations Sold [Line Items]
Contractual Maturity Date			Dec. 31, 2024
Maximum Extension Date			Dec. 31, 2025
Par Value			$ 20,000
Carrying value			19,611
Loan held by company			$ 130,061
Variable Loan Two
Loan Participations Sold [Line Items]
Contractual Maturity Date					Aug. 20, 2022
Maximum Extension Date					Aug. 20, 2024
Par Value					$ 138,071
Carrying value					136,843
Loan held by company					$ 177,732
Variable Loan Three
Loan Participations Sold [Line Items]
Contractual Maturity Date					Mar. 21, 2021
Maximum Extension Date					Mar. 21, 2023
Par Value					$ 27,582
Carrying value					27,493
Loan held by company					$ 49,710
Variable Loan Four
Loan Participations Sold [Line Items]
Contractual Maturity Date					Sep. 09, 2021
Maximum Extension Date					Sep. 09, 2024
Par Value					$ 44,645
Carrying value					44,479
Loan held by company					$ 109,007
Variable Loan Five
Loan Participations Sold [Line Items]
Contractual Maturity Date					Sep. 09, 2021
Maximum Extension Date					Sep. 09, 2024
Par Value					$ 42,859
Carrying value					42,701
Loan held by company					$ 104,649
Variable Loan Six
Loan Participations Sold [Line Items]
Contractual Maturity Date					Sep. 09, 2022
Maximum Extension Date					Sep. 09, 2024
Par Value					$ 76,513
Carrying value					75,973
Loan held by company					$ 76,593

[1] This financing has a LIBOR floor of 1.85%.

[2] Weighted average interest rate as of December 31, 2020 was 5.09%. Weighted average is based on outstanding principal as of December 31, 2020.

[3] Weighted average interest rate as of December 31, 2021 was 5.43%. Weighted average is based on outstanding principal as of December 31, 2021.