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REVENUE RECOGNITION - Disaggregation of Revenue Based on Business Segment Results (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Financial Advisory
Disaggregation Of Revenue [Line Items]
Net revenue	$ 427,335	$ 370,917	$ 1,292,000	$ 1,235,732
Asset Management
Disaggregation Of Revenue [Line Items]
Net revenue	327,029	293,878	907,607	874,841
Asset Management | Management Fees and Other
Disaggregation Of Revenue [Line Items]
Net revenue	311,540	288,814	876,929	857,246
Asset Management | Incentive Fees
Disaggregation Of Revenue [Line Items]
Net revenue	$ 15,489	$ 5,064	$ 30,678	$ 17,595

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