INVESTMENTS - Investment Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Schedule of Equity Method Investments [Line Items]
Equity-method investments:	$ 256,988	$ (359,425)	$ 1,371,440	$ 1,192,699
Total investment income (loss)	(41,841)	(30,674)	9,881	(18,933)
Corporate Segment
Schedule of Equity Method Investments [Line Items]
Other investments, at fair value	(30,611)	4,507	(5,008)	2,641
Total investment income (loss)	(41,841)	(30,674)	9,881	(18,933)
Funds | Corporate Segment
Schedule of Equity Method Investments [Line Items]
Equity-method investments:	(11,230)	(34,591)	14,892	(20,338)
Companies | Corporate Segment
Schedule of Equity Method Investments [Line Items]
Equity-method investments:	$ 0	$ (590)	$ (3)	$ (1,236)