REVENUE RECOGNITION - Disaggregation of Revenue Based on Business Segment Results (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Financial Advisory
Disaggregation Of Revenue [Line Items]
Net revenue	$ 370,917	$ 266,048	$ 1,235,732	$ 896,099
Asset Management
Disaggregation Of Revenue [Line Items]
Net revenue	293,878	284,855	874,841	857,212
Asset Management | Management Fees and Other
Disaggregation Of Revenue [Line Items]
Net revenue	288,814	282,657	857,246	843,590
Asset Management | Incentive Fees
Disaggregation Of Revenue [Line Items]
Net revenue	$ 5,064	$ 2,198	$ 17,595	$ 13,622