Other Expenses - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Management fees	$ 31,050	$ 23,486
Manager
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Management base fee percentage	1.50%
Management incentive fee percentage	20.00%
Management core earnings fee percentage	7.00%
Management core earnings fee measurement period (in years)	3 years
Management core earnings fee minimum threshold	0.00%
Management fees	$ 18,600	18,100
Total incentive compensation payments	12,500	$ 5,400
Accrued management and incentive fees payable	$ 31,100		$ 33,800