SEGMENT REPORTING - Schedule of Reconciliation of Segment Results to the Company's Income before Taxes and Total Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Adjustments:
Depreciation and amortization expense	$ 116,300	$ 126,000	$ 133,600
Consolidated Funds
Adjustments:
Other (income) expense, net	(48,963)	(101,465)	(33,822)
Total net investment loss—realized	(933,349)	(995,545)	(586,529)
Operating segment
Segment Reporting, Other Significant Reconciling Item [Line Items]
Income before taxes	1,275,352	1,333,063	510,806
Adjustments:
Depreciation and amortization expense	157,341	233,185	335,083
Equity compensation expense	352,851	255,419	198,948
Acquisition-related compensation expense	38,150	7,334	206,252
Acquisition and merger-related expense	57,360	12,000	15,197
Placement fee adjustment	5,715	(5,819)	2,088
Other (income) expense, net	(12,172)	976	1,874
Total performance income—unrealized	(109,533)	(305,370)	(107,153)
Total performance related compensation—unrealized	36,823	206,923	88,502
Total net investment income—unrealized	(5,613)	(178,481)	(12,834)
Realized income	2,087,678	1,802,988	1,581,220
Total performance income—realized	(430,179)	(415,899)	(418,021)
Total performance related compensation—realized	281,301	282,406	274,541
Total net investment loss—realized	43,867	32,298	4,494
Fee related earnings	1,982,667	1,701,793	1,442,234
Operating segment | Consolidated Funds
Adjustments:
Income before taxes of non-controlling interests in Consolidated Funds, net of eliminations	(302,846)	(278,119)	(119,664)
Operating segment | Subsidiaries
Adjustments:
Income before taxes of non-controlling interests in Consolidated Funds, net of eliminations	(22,267)	(17,249)	(357)
OMG
Adjustments:
OMG expense, net	616,517	539,126	462,478
Realized income	620,558	537,460	450,193
Total performance income—realized	0	0	0
Total performance related compensation—realized	0	0	0
Fee related earnings	$ 620,930	$ 538,052	$ 447,884