DEBT OBLIGATIONS AND CREDIT FACILITIES - Debt Obligations of CLOs (Details) - Consolidated Funds - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Fair Value	$ 381,666	$ 0
Senior secured notes
Debt Instrument [Line Items]
Fair Value	$ 381,666	$ 0
Average borrowing rate (percent)	7.32%	0.00%
Weighted Average Remaining Maturity (years)	12 years 10 months 24 days	0 years