Repurchase Agreements, Loan Participations Sold, Notes Payable and Secured Term Loan, Net - Summary of Secured Term Loan (Parenthetical) (Details)		1 Months Ended		12 Months Ended
	May 27, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Secured Term Loan [Line Items]
LIBOR floor				0.25%	0.35%
LIBOR floor	0.35%
London Interbank Offered Rate (LIBOR)
Secured Term Loan [Line Items]
LIBOR floor				0.10%	0.14%
Secured Term Loan | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Secured Term Loan [Line Items]
LIBOR floor		0.05%
Secured Term Loan | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Maximum
Secured Term Loan [Line Items]
LIBOR floor				0.50%
Secured Term Loan | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum
Secured Term Loan [Line Items]
LIBOR floor				0.10%
Secured Term Loan | London Interbank Offered Rate (LIBOR)
Secured Term Loan [Line Items]
LIBOR floor			0.14%
LIBOR floor			1.00%