Financial Data of Segments (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Segment Reporting Information [Line Items]
Fee Related Performance Revenues	$ 488,098	$ 293,915
Realized Performance Revenues	1,268,592	753,875
Realized Performance Compensation	(487,817)	(298,919)
Realized Principal Investment Income (loss)	31,973	117,910
Operating Segments
Segment Reporting Information [Line Items]
Base Management Fees	1,952,414	1,807,119
Transaction, Advisory and Other Fees, Net	211,697	111,309
Management Fee Offsets	(31,303)	(26,430)
Total Management and Advisory Fees, Net	2,132,808	1,891,998
Fee Related Performance Revenues	488,098	293,915
Fee Related Compensation	(729,470)	(616,982)
Other Operating Expenses	(343,455)	(306,875)
Fee Related Earnings	1,547,981	1,262,056
Realized Performance Revenues	780,494	460,023
Realized Performance Compensation	(364,056)	(220,924)
Realized Principal Investment Income (loss)	31,973	117,910
Total Net Realizations	448,411	357,009
Total Segment Distributable Earnings	1,996,392	1,619,065
Segment Assets	43,580,257
Operating Segments \| Real Estate Segment
Segment Reporting Information [Line Items]
Base Management Fees	636,047	664,601
Transaction, Advisory and Other Fees, Net	51,738	40,146
Management Fee Offsets	(10,308)	(3,899)
Total Management and Advisory Fees, Net	677,477	700,848
Fee Related Performance Revenues	152,998	37,803
Fee Related Compensation	(193,137)	(170,525)
Other Operating Expenses	(90,200)	(83,281)
Fee Related Earnings	547,138	484,845
Realized Performance Revenues	42,074	19,010
Realized Performance Compensation	(22,956)	(8,770)
Realized Principal Investment Income (loss)	(8,805)	349
Total Net Realizations	10,313	10,589
Total Segment Distributable Earnings	557,451	495,434
Segment Assets	12,933,328
Operating Segments \| Private Equity Segment
Segment Reporting Information [Line Items]
Base Management Fees	659,991	578,444
Transaction, Advisory and Other Fees, Net	150,938	54,220
Management Fee Offsets	(9,007)	(10,872)
Total Management and Advisory Fees, Net	801,922	621,792
Fee Related Performance Revenues	170,697	60,904
Fee Related Compensation	(262,813)	(203,319)
Other Operating Expenses	(112,928)	(102,894)
Fee Related Earnings	596,878	376,483
Realized Performance Revenues	637,989	350,073
Realized Performance Compensation	(294,536)	(171,141)
Realized Principal Investment Income (loss)	45,348	9,176
Total Net Realizations	388,801	188,108
Total Segment Distributable Earnings	985,679	564,591
Segment Assets	20,529,092
Operating Segments \| Credit & Insurance Segment
Segment Reporting Information [Line Items]
Base Management Fees	509,847	443,223
Transaction, Advisory and Other Fees, Net	10,628	15,480
Management Fee Offsets	(11,988)	(11,659)
Total Management and Advisory Fees, Net	508,487	447,044
Fee Related Performance Revenues	164,403	195,208
Fee Related Compensation	(226,493)	(201,618)
Other Operating Expenses	(114,563)	(96,278)
Fee Related Earnings	331,834	344,356
Realized Performance Revenues	78,126	91,597
Realized Performance Compensation	(31,197)	(40,495)
Realized Principal Investment Income (loss)	(5,705)	107,903
Total Net Realizations	41,224	159,005
Total Segment Distributable Earnings	373,058	503,361
Segment Assets	7,671,327
Operating Segments \| Multi Assets Investing Segment
Segment Reporting Information [Line Items]
Base Management Fees	146,529	120,851
Transaction, Advisory and Other Fees, Net	(1,607)	1,463
Management Fee Offsets	0	0
Total Management and Advisory Fees, Net	144,922	122,314
Fee Related Performance Revenues	0	0
Fee Related Compensation	(47,027)	(41,520)
Other Operating Expenses	(25,764)	(24,422)
Fee Related Earnings	72,131	56,372
Realized Performance Revenues	22,305	(657)
Realized Performance Compensation	(15,367)	(518)
Realized Principal Investment Income (loss)	1,135	482
Total Net Realizations	8,073	(693)
Total Segment Distributable Earnings	80,204	$ 55,679
Segment Assets	$ 2,446,510