SEGMENT REPORTING - Reconciliation of Income Before Taxes (Details) - USD ($) $ in Thousands		12 Months Ended
	Jun. 02, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Adjustments:
Equity compensation expense		$ 237,191	$ 122,986	$ 97,691
Acquisition and merger-related expense	$ 5,100
Black Creek Acquisition
Adjustments:
Performance income realized, percentage		100.00%
Performance income realized, unconsolidated basis, percentage		50.00%
Consolidated Funds
Adjustments:
Other (income) expense, net		$ (35,879)	(34,297)	(8,383)
Income before taxes of non-controlling interests in Consolidated Funds, net of eliminations		120,369	28,085	39,704
Total investment income—realized		(437,818)	(463,652)	(395,599)
Operating segment
Economic net income
Income before taxes		1,065,690	379,478	425,180
Adjustments:
Depreciation and amortization expense		106,705	40,662	40,602
Equity compensation expense		237,191	122,986	97,691
Acquisition-related compensation expense		66,893	0	0
Acquisition related incentive fees		(47,873)	0	0
Acquisition and merger-related expense		21,162	11,194	16,266
Deferred placement fees		78,883	19,329	24,306
Other (income) expense, net		(19,886)	10,207	(460)
Total performance (income) loss—unrealized		(1,744,056)	7,554	(303,142)
Total performance related compensation—unrealized		1,316,205	(11,552)	206,799
Total investment (income) loss—unrealized		(52,445)	35,183	35,681
Realized income		1,202,139	826,485	735,964
Total performance income—realized		(474,427)	(524,229)	(348,211)
Total performance related compensation—realized		328,583	399,462	258,355
Total investment income—realized		(25,095)	(33,730)	(69,715)
Fee related earnings		1,031,200	667,988	576,393
Operating segment | Consolidated Funds
Adjustments:
Income before taxes of non-controlling interests in Consolidated Funds, net of eliminations		(120,457)	(28,203)	(39,174)
Operating segment | Subsidiaries
Adjustments:
Income before taxes of non-controlling interests in Consolidated Funds, net of eliminations		(23,397)	3,817	2,951
OMG
Adjustments:
OMG expense, net		317,524	235,830	229,264
Realized income		319,202	244,529	232,478
Total performance income—realized		0	0	0
Total performance related compensation—realized		0	0	0
Total investment income—realized		310	7,772	2,024
Fee related earnings		$ 318,892	$ 236,757	$ 230,454