Notes Payable - Schedule of Information Related to Lines of Credit (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Maximum amount outstanding	$ 591,000	$ 328,752
Average amount outstanding	$ 541,635	$ 276,399
Weighted average interest rate, during the period	6.63%	3.29%
Prime Rate [Member]
Debt Instrument [Line Items]
Prime interest rate, end of period	8.50%	7.50%