Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 28,559	$ 140,464	$ 146,010	$ 309,464
Foreign currency translation adjustment, net of tax	(4,580)	(2,983)	(9,949)	(1,685)
Other comprehensive income (loss)	(4,580)	(2,983)	(9,949)	(1,685)
Comprehensive income (loss)	23,979	137,481	136,061	307,779
Less: Comprehensive income (loss) attributable to noncontrolling interests	2,567	19,831	14,881	43,104
Comprehensive income (loss) attributable to Moelis & Company	$ 21,412	$ 117,650	$ 121,180	$ 264,675