Repurchase Agreements, Loan Participations Sold, Notes Payable and Secured Term Loan, Net - Summary of Debt Related To Real Estate Owned (Parenthetical) (Details)	1 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument Real Estate Owned Net [Line Items]
LIBOR floor		0.25%	0.35%
Real Estate Investment
Debt Instrument Real Estate Owned Net [Line Items]
LIBOR floor		0.75%
Real Estate Investment | One Month L I B O R
Debt Instrument Real Estate Owned Net [Line Items]
LIBOR floor	0.10%