INVESTMENTS - Schedule of Financial Information for the Company’s Equity Method Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Investments
Total assets	$ 24,730,500	$ 22,002,839
Total liabilities	19,709,151	17,097,810
Total equity	4,474,313	3,798,618	$ 3,814,426	$ 2,471,774
Total revenues	3,631,884	3,055,443	4,212,091
Expenses	(2,797,858)	(2,749,085)	(3,410,083)
Income tax benefit (expense)	(172,971)	(71,891)	(147,385)
Net income (loss)	885,796	319,582	797,936
Equity Method Investment, Nonconsolidated Investee
Investments
Total investments	59,631,205	52,833,338
Total assets	62,765,300	58,255,201
Total liabilities	15,444,848	15,437,372
Total equity	47,320,452	42,817,829
Total revenues	3,756,681	2,234,911	1,899,384
Expenses	(2,067,667)	(1,241,148)	(764,730)
Net realized and unrealized gains (losses) from investments	614,489	(175,536)	5,173,622
Income tax benefit (expense)	(15,963)	(41,143)	(24,803)
Net income (loss)	2,287,540	777,084	6,283,473
Equity Method Investment, Nonconsolidated Investee | Credit Group
Investments
Total investments	21,366,223	17,633,914
Total assets	23,015,503	20,883,559
Total liabilities	5,152,522	5,770,070
Total equity	17,862,981	15,113,489
Total revenues	2,123,547	1,341,368	1,342,427
Expenses	(759,485)	(438,690)	(305,452)
Net realized and unrealized gains (losses) from investments	247,619	12,464	438,083
Income tax benefit (expense)	(5,192)	(4,724)	(4,511)
Net income (loss)	1,606,489	910,418	1,470,547
Equity Method Investment, Nonconsolidated Investee | Private Equity Group
Investments
Total investments	6,971,840	9,376,032
Total assets	7,110,511	9,947,821
Total liabilities	130,727	937,326
Total equity	6,979,784	9,010,495
Total revenues	594,464	271,873	229,539
Expenses	(191,613)	(153,372)	(177,380)
Net realized and unrealized gains (losses) from investments	600,322	(482,260)	2,161,730
Income tax benefit (expense)	(555)	92	(19,125)
Net income (loss)	1,002,618	(363,667)	2,194,764
Equity Method Investment, Nonconsolidated Investee | Real Assets Group
Investments
Total investments	17,757,664	13,052,820
Total assets	18,792,446	14,440,914
Total liabilities	6,528,302	5,007,250
Total equity	12,264,144	9,433,664
Total revenues	1,036,710	618,796	326,507
Expenses	(632,433)	(357,845)	(170,008)
Net realized and unrealized gains (losses) from investments	(599,200)	304,068	1,179,698
Income tax benefit (expense)	(10,197)	(36,501)	(1,167)
Net income (loss)	(205,120)	528,518	1,335,030
Equity Method Investment, Nonconsolidated Investee | Secondaries Group
Investments
Total investments	13,497,266	12,719,333
Total assets	13,808,556	12,931,082
Total liabilities	3,632,879	3,716,111
Total equity	10,175,677	9,214,971
Total revenues	1,960	2,874	911
Expenses	(482,478)	(289,741)	(89,281)
Net realized and unrealized gains (losses) from investments	373,064	(11,173)	1,399,009
Income tax benefit (expense)	0	0	0
Net income (loss)	(107,454)	(298,040)	1,310,639
Equity Method Investment, Nonconsolidated Investee | Other
Investments
Total investments	38,212	51,239
Total assets	38,284	51,825
Total liabilities	418	6,615
Total equity	37,866	45,210
Total revenues	0	0	0
Expenses	(1,658)	(1,500)	(22,609)
Net realized and unrealized gains (losses) from investments	(7,316)	1,365	(4,898)
Income tax benefit (expense)	(19)	(10)	0
Net income (loss)	$ (8,993)	$ (145)	$ (27,507)