Restricted Cash, Other Assets and Accrued and Other Liabilities - Summary of Restricted Cash (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 104,868	$ 86,841	$ 70,304	$ 65,213
Borrower escrow deposits
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	87,443	73,344
Capital expenditure reserves
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	10,332	8,921
Real estate escrow reserves
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	3,912	2,025
Working capital and other reserves
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	2,064	2,310
Tenant lockboxes
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 1,117	$ 241