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INVESTMENTS - Schedule of Net Gains (Losses) from Investment Activities (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Gain (Loss) on Securities [Line Items] |  |  |  |
Net Realized Gain (Loss) on Investments | $ 31,278 | $ 32,533 | $ 106,415 | $ 35,614
Net Change in Unrealized Appreciation (Depreciation) on Investments | 23,383 | 52,467 | (116,961) | 147,646
Consolidated Funds | Not Designated as Hedging Instrument |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Net Realized Gain (Loss) on Investments | 31,278 | 32,533 | 106,415 | 35,614
Net Change in Unrealized Appreciation (Depreciation) on Investments | 23,383 | 52,467 | (116,961) | 147,646
Consolidated Funds | Investments and other financial instruments | Not Designated as Hedging Instrument |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Net Realized Gain (Loss) on Investments | 28,972 | 30,142 | 100,286 | 26,283
Net Change in Unrealized Appreciation (Depreciation) on Investments | 10,825 | 64,925 | (67,143) | 155,848
Consolidated Funds | CLO liabilities | Not Designated as Hedging Instrument |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Net Realized Gain (Loss) on Investments |  |  | 0 | 185
Net Change in Unrealized Appreciation (Depreciation) on Investments |  |  | 0 | 1,597
Consolidated Funds | Foreign-currency forward contracts | Not Designated as Hedging Instrument |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Net Realized Gain (Loss) on Investments | (1,309) | 646 | 3,043 | 411
Net Change in Unrealized Appreciation (Depreciation) on Investments | 11,447 | (20,101) | (53,045) | (14,189)
Consolidated Funds | Total return and interest rate swaps | Not Designated as Hedging Instrument |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Net Realized Gain (Loss) on Investments | 488 | 0 | (139) | 0
Net Change in Unrealized Appreciation (Depreciation) on Investments | 230 | 7,860 | 877 | 11,448
Consolidated Funds | Options and futures | Not Designated as Hedging Instrument |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Net Realized Gain (Loss) on Investments | 1,738 | 822 | 1,836 | 584
Net Change in Unrealized Appreciation (Depreciation) on Investments | 638 | 0 | 2,107 | 1,600
Consolidated Funds | Commodity swaps | Not Designated as Hedging Instrument |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Net Realized Gain (Loss) on Investments | 1,389 | 923 | 1,389 | 8,151
Net Change in Unrealized Appreciation (Depreciation) on Investments | $ 243 | $ (217) | $ 243 | $ (8,658)

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