Other Assets and Liabilities - Summary of Components of Other Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, Other Assets and Other Liabilities Disclosure [Abstract]
Derivative liabilities	$ 119,665	$ 5,890
Accrued dividends payable	106,455	104,271
Accrued interest payable	80,263	29,851
Secured debt repayments pending servicer remittance	60,585	47,664
Accrued management and incentive fees payable	33,830	28,373
Current expected credit loss reserve for unfunded loan commitments	16,380	6,263
Accounts payable and other liabilities	9,726	9,046
Total	$ 426,904	$ 231,358