SEGMENT REPORTING - Schedule of Reconciliation of Income Before Taxes (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Adjustments:
Depreciation and amortization expense	$ 29,000	$ 30,400	$ 58,200	$ 64,000
Consolidated Funds
Adjustments:
Total investment (income) loss—realized	(240,359)	(234,454)	(497,635)	(457,392)
Operating segment
Segment Reporting, Other Significant Reconciling Item [Line Items]
Income before taxes	317,325	381,969	548,373	623,091
Adjustments:
Depreciation and amortization expense	36,251	42,991	72,895	88,650
Equity compensation expense	88,234	62,284	180,655	130,988
Acquisition-related compensation expense	5,435	600	10,939	1,242
Acquisition and merger-related expense	3,650	2,757	14,228	7,712
Placement fee adjustment	(230)	(3,744)	5,310	(6,976)
Other (income) expense, net	(11,430)	212	(11,299)	303
Total performance (income) loss—unrealized	122,318	(288,220)	167,794	(415,933)
Total performance related compensation—unrealized	(107,182)	215,496	(171,696)	300,646
Investment (income) loss—unrealized	22,908	(39,629)	18,621	(68,406)
Realized income	509,423	439,523	938,471	820,432
Total performance income—realized	(109,642)	(140,635)	(132,823)	(171,771)
Total performance related compensation—realized	68,996	99,109	82,152	122,968
Total investment (income) loss—realized	2,539	(4,221)	25,490	3,283
Fee related earnings	471,316	393,776	913,290	774,912
Operating segment \| Consolidated Funds
Adjustments:
Income before taxes of non-controlling interests in Consolidated Funds, net of eliminations	(110,481)	(67,762)	(176,067)	(94,933)
Operating segment \| Subsidiaries
Adjustments:
Income before taxes of non-controlling interests in Consolidated Funds, net of eliminations	(3,942)	3,786	(7,604)	(1,885)
OMG
Adjustments:
OMG expense, net	146,567	128,783	286,322	255,933
Realized income	146,265	127,313	286,157	253,930
Total performance income—realized	0	0	0	0
Total performance related compensation—realized	0	0	0	0
Fee related earnings	$ 146,800	$ 127,630	$ 287,104	$ 254,129

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