ORGANIZATION AND BASIS OF PRESENTATION - Schedule of Operating Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Compensation and fringe benefits	$ 42,413	$ 55,497	$ 101,037	$ 125,008
Professional fees	13,771	6,962	19,619	15,745
Marketing and selling expenses	630	842	1,204	2,270
General and administrative expenses	7,766	5,999	15,223	13,917
Other operating expenses	5,700	9,697	12,715	18,845
Total operating costs	$ 70,280	$ 78,997	$ 149,798	$ 175,785