REVENUES - Revenues Disaggregated by Fund Structure (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation of Revenue [Line Items]
Revenues	$ 2,072	$ 116,583	$ 61,473	$ 179,613
Management Fees
Disaggregation of Revenue [Line Items]
Revenues	0	63,079	0	123,510
Closed-end
Disaggregation of Revenue [Line Items]
Revenues	0	1,462	0	2,844
Open-end
Disaggregation of Revenue [Line Items]
Revenues	0	1,339	0	2,709
Sub-advisory fees
Disaggregation of Revenue [Line Items]
Revenues	0	60,278	0	117,957
Incentive income
Disaggregation of Revenue [Line Items]
Revenues	2,072	53,504	61,473	56,103
Closed-end
Disaggregation of Revenue [Line Items]
Revenues	1,864	53,345	60,963	55,600
Evergreen
Disaggregation of Revenue [Line Items]
Revenues	$ 208	$ 159	$ 510	$ 503