Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (27,516)	$ 168,682	$ 422,978
Foreign currency translation adjustment, net of tax	659	(4,333)	(431)
Other comprehensive income (loss)	659	(4,333)	(431)
Comprehensive income (loss)	(26,857)	164,349	422,547
Less: Comprehensive income (loss) attributable to noncontrolling interests	(2,758)	17,973	57,693
Comprehensive income (loss) attributable to Moelis & Company	$ (24,099)	$ 146,376	$ 364,854