DEBT - Loan Obligations of the Consolidated CLOs (Details) - Consolidated Funds - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
DEBT
Fair Value of Loan Obligations	$ 10,657,661	$ 9,958,076
Loan obligations of Consolidated CLOs
DEBT
Loan Obligations	10,823,994	10,278,833
Fair Value of Loan Obligations	10,657,661	9,958,076
Senior secured notes | Loan obligations of Consolidated CLOs
DEBT
Loan Obligations	10,031,419	9,796,442
Fair Value of Loan Obligations	$ 10,016,638	$ 9,665,804
Weighted  Average Remaining Maturity  In Years	9 years 4 months 24 days	10 years 1 month 6 days
Debt instrument face amount	$ 10,000,000	$ 9,800,000
Weighted average interest rate	1.93%	1.89%
Subordinated notes | Loan obligations of Consolidated CLOs
DEBT
Loan Obligations	$ 792,575	$ 482,391
Fair Value of Loan Obligations	$ 641,023	$ 292,272
Weighted  Average Remaining Maturity  In Years	8 years 1 month 6 days	10 years 2 months 12 days
Debt instrument face amount	$ 792,600	$ 482,400