INVESTMENTS - Schedule of Net Gains (Losses) from Investment Activities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Gain (Loss) on Securities [Line Items]
Net Realized Gain (Loss) on Investments	$ 65,644	$ 79,420	$ (13,114)
Net Change in Unrealized Appreciation (Depreciation) on Investments	150,666	29,064	(15,023)
Consolidated Funds | Not Designated as Hedging Instrument
Gain (Loss) on Securities [Line Items]
Net Realized Gain (Loss) on Investments	65,644	79,420	(13,114)
Net Change in Unrealized Appreciation (Depreciation) on Investments	150,666	29,064	(15,023)
Consolidated Funds | Investments and other financial instruments | Not Designated as Hedging Instrument
Gain (Loss) on Securities [Line Items]
Net Realized Gain (Loss) on Investments	54,580	63,213	4,103
Net Change in Unrealized Appreciation (Depreciation) on Investments	131,725	27,890	99,199
Consolidated Funds | CLO liabilities | Not Designated as Hedging Instrument
Gain (Loss) on Securities [Line Items]
Net Realized Gain (Loss) on Investments	185	0	(30,033)
Net Change in Unrealized Appreciation (Depreciation) on Investments	1,597	0	(99,550)
Consolidated Funds | Foreign-Currency Forward Contracts | Not Designated as Hedging Instrument
Gain (Loss) on Securities [Line Items]
Net Realized Gain (Loss) on Investments	337	898	43,145
Net Change in Unrealized Appreciation (Depreciation) on Investments	28,193	(14,909)	(10,777)
Consolidated Funds | Total-Return Swaps And Interest-Rate Swaps | Not Designated as Hedging Instrument
Gain (Loss) on Securities [Line Items]
Net Realized Gain (Loss) on Investments	613	(235)	975
Net Change in Unrealized Appreciation (Depreciation) on Investments	(19)	328	284
Consolidated Funds | Options and futures | Not Designated as Hedging Instrument
Gain (Loss) on Securities [Line Items]
Net Realized Gain (Loss) on Investments	1,440	4,382	13,322
Net Change in Unrealized Appreciation (Depreciation) on Investments	(2,176)	(569)	(223)
Consolidated Funds | Commodity swaps | Not Designated as Hedging Instrument
Gain (Loss) on Securities [Line Items]
Net Realized Gain (Loss) on Investments	8,489	11,162	(44,626)
Net Change in Unrealized Appreciation (Depreciation) on Investments	$ (8,654)	$ 16,324	$ (3,956)