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GOODWILL AND OTHER INTANGIBLE ASSETS - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Goodwill [Roll Forward]
Beginning Balance	$ 394,898	$ 377,240
Acquisition of business	0	16,706
Foreign currency translation adjustments	(800)	239
Ending Balance	394,098	394,185
Financial Advisory
Goodwill [Roll Forward]
Beginning Balance	313,628	312,699
Acquisition of business	0	0
Foreign currency translation adjustments	(800)	239
Ending Balance	312,828	312,938
Asset Management
Goodwill [Roll Forward]
Beginning Balance	81,270	64,541
Acquisition of business	0	16,706
Foreign currency translation adjustments	0	0
Ending Balance	$ 81,270	$ 81,247

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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