INVESTMENTS - Schedule of Investments of the Consolidated Funds (Details) - Consolidated Funds  - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Investments
Total investments, at fair value	$ 12,737,844	$ 14,601,587
Fixed income investments:
Investments
Total investments, at fair value	$ 8,876,318	$ 11,718,445
Percentage of total investments	69.70%	80.30%
Fixed income investments: | Loans and securitization vehicles
Investments
Total investments, at fair value	$ 7,907,449	$ 10,616,458
Percentage of total investments	62.10%	72.70%
Fixed income investments: | Money market funds and U.S. treasury securities
Investments
Total investments, at fair value	$ 550,800	$ 523,038
Percentage of total investments	4.30%	3.60%
Fixed income investments: | Bonds
Investments
Total investments, at fair value	$ 418,069	$ 578,949
Percentage of total investments	3.30%	4.00%
Partnership interests
Investments
Total investments, at fair value	$ 2,000,380	$ 1,642,489
Percentage of total investments	15.70%	11.20%
Equity securities
Investments
Total investments, at fair value	$ 1,861,146	$ 1,240,653
Percentage of total investments	14.60%	8.50%