INVESTMENTS - Schedule of Investments of the Consolidated Funds (Details) - Consolidated Funds  - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Investments
Total investments, at fair value	$ 12,844,886	$ 12,737,844
Fixed income investments
Investments
Total investments, at fair value	$ 5,788,110	$ 8,876,318
Percentage of total investments	45.10%	69.70%
Fixed income investments | Loans and securitization vehicles
Investments
Total investments, at fair value	$ 5,507,199	$ 7,907,449
Percentage of total investments	42.90%	62.10%
Fixed income investments | U.S. treasury securities
Investments
Total investments, at fair value	$ 0	$ 550,800
Percentage of total investments	0.00%	4.30%
Fixed income investments | Bonds
Investments
Total investments, at fair value	$ 280,911	$ 418,069
Percentage of total investments	2.20%	3.30%
Partnership interests
Investments
Total investments, at fair value	$ 3,791,056	$ 2,000,380
Percentage of total investments	29.60%	15.70%
Equity securities
Investments
Total investments, at fair value	$ 3,265,720	$ 1,861,146
Percentage of total investments	25.40%	14.60%