Repurchase Agreements, Loan Participations Sold, Net, Notes Payable, Net, Secured Term Loan, Net, Debt Related to Real Estate Owned, Net, and Acquisition Facility - Additional Information (Details) - USD ($) $ in Thousands			1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 29, 2022	Dec. 02, 2021	Jun. 02, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021	Feb. 08, 2021	Dec. 01, 2020	Aug. 09, 2019
Repurchase Agreement Counterparty [Line Items]
Secured term loan										$ 325,000	$ 450,000
One-month SOFR		4.50%
Interest expense				$ 49,590	$ 55,356	$ 91,754	$ 103,118
General and administrative expenses				4,748	$ 2,874	9,091	$ 4,063
Line of credit, maximum borrowing capacity				141,100		$ 141,100
Secured Overnight Financing Rate (SOFR)
Repurchase Agreement Counterparty [Line Items]
Debt instrument basis spread on variable rate						1.69%
Secured Term Loan
Repurchase Agreement Counterparty [Line Items]
Principal payments						$ 1,900
Contractual Maturity Date						Aug. 09, 2026		Aug. 09, 2026
Secured Term Loan | Secured Overnight Financing Rate (SOFR)
Repurchase Agreement Counterparty [Line Items]
Debt instrument basis spread on variable rate						1.69%		0.05%
Secured Term Loan | Secured Overnight Financing Rate (SOFR) | Minimum
Repurchase Agreement Counterparty [Line Items]
One-month SOFR		0.10%
Secured Term Loan | Secured Overnight Financing Rate (SOFR) | Maximum
Repurchase Agreement Counterparty [Line Items]
One-month SOFR		0.50%
Acquisition Facility
Repurchase Agreement Counterparty [Line Items]
Contractual Maturity Date	Jun. 29, 2025
Line of credit, maximum borrowing capacity	$ 150,000
Line of credit facility increase	$ 500,000
Credit spread adjustment rate	2.25
Credit facility initial advance rate	75.00%
Credit facility outstanding balance				0		$ 0
Acquisition Facility | Secured Overnight Financing Rate (SOFR)
Repurchase Agreement Counterparty [Line Items]
Debt instrument, variable interest rate basis	1-month
Debt instrument basis spread on variable rate	0.10%
Repurchase Agreements
Repurchase Agreement Counterparty [Line Items]
Debt instrument repurchase guaranteed amount				$ 1,100,000		$ 1,100,000		$ 944,000
Real Estate Investment
Repurchase Agreement Counterparty [Line Items]
Principal payments			$ 10,000
Senior mortgage amount									$ 300,000
Contractual Maturity Date			Feb. 09, 2024
Debt instrument, Fee amount			$ 7,600
Interest expense			6,300
General and administrative expenses			1,100
Debt issuance costs			$ 200