Loans Receivable, Net - Schedule Of Current Expected Credit Loss Reserve By Pool (Detail) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 893,938	$ 751,370	$ 576,936	$ 363,875	$ 336,591	$ 326,137	$ 576,936
(Decrease) increase in CECL reserves	134,110	155,105	235,447	99,548	27,284	10,454
Charge-offs of CECL reserves	(16,989)	(12,537)	(61,013)				(90,539)
Ending balance	1,011,059	893,938	751,370	463,423	363,875	336,591	1,011,059
US Loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance	62,531	74,528	78,335	74,393	73,194	67,880	78,335
(Decrease) increase in CECL reserves	(9,584)	(11,997)	(3,807)	(5,639)	1,199	5,314
Charge-offs of CECL reserves	0	0	0
Ending balance	52,947	62,531	74,528	68,754	74,393	73,194	52,947
Non-U.S. Loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance	28,151	30,790	31,560	28,992	19,696	22,519	31,560
(Decrease) increase in CECL reserves	(1,916)	(2,639)	(770)	(2,336)	9,296	(2,823)
Charge-offs of CECL reserves	0	0	0
Ending balance	26,235	28,151	30,790	26,656	28,992	19,696	26,235
Unique Loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance	43,876	43,453	49,371	46,089	46,443	45,960	49,371
(Decrease) increase in CECL reserves	4,424	423	(5,918)	(627)	(354)	483
Charge-offs of CECL reserves	0	0	0
Ending balance	48,300	43,876	43,453	45,462	46,089	46,443	48,300
Impaired loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance	759,380	602,599	417,670	214,401	197,258	189,778	417,670
(Decrease) increase in CECL reserves	141,186	169,318	245,942	108,150	17,143	7,480
Charge-offs of CECL reserves	(16,989)	(12,537)	(61,013)
Ending balance	$ 883,577	$ 759,380	$ 602,599	$ 322,551	$ 214,401	$ 197,258	$ 883,577