DERIVATIVES AND HEDGING - Schedule of Impact of Derivatives Held by Consolidated Funds (Details) - Consolidated Funds - Not Designated as Hedging Instrument - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Derivatives, Fair Value [Line Items]
Net Realized Gain (Loss) on Investments	$ 1,911	$ 6,067
Net Change in Unrealized Appreciation (Depreciation) on Investments	19,593	(26,635)
Foreign-currency forward contracts
Derivatives, Fair Value [Line Items]
Net Realized Gain (Loss) on Investments	671	5,455
Net Change in Unrealized Appreciation (Depreciation) on Investments	20,717	(25,471)
Total-return and interest-rate and credit default swaps
Derivatives, Fair Value [Line Items]
Net Realized Gain (Loss) on Investments	453	(627)
Net Change in Unrealized Appreciation (Depreciation) on Investments	(1,293)	716
Options and futures
Derivatives, Fair Value [Line Items]
Net Realized Gain (Loss) on Investments	787	1,239
Net Change in Unrealized Appreciation (Depreciation) on Investments	$ 169	$ (1,880)

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.