Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 168,682	$ 422,978	$ 218,438
Foreign currency translation adjustment, net of tax	(4,333)	(431)	(2,040)
Other comprehensive income (loss)	(4,333)	(431)	(2,040)
Comprehensive income (loss)	164,349	422,547	216,398
Less: Comprehensive income (loss) attributable to noncontrolling interests	17,973	57,693	39,200
Comprehensive income (loss) attributable to Moelis & Company	$ 146,376	$ 364,854	$ 177,198