Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 43,857	$ 93,202	$ 117,451	$ 169,000
Foreign currency translation adjustment, net of tax	(4,605)	2,042	(5,369)	1,298
Other comprehensive income (loss)	(4,605)	2,042	(5,369)	1,298
Comprehensive income (loss)	39,252	95,244	112,082	170,298
Less: Comprehensive income (loss) attributable to noncontrolling interests	4,512	14,093	12,314	23,273
Comprehensive income (loss) attributable to Moelis & Company	$ 34,740	$ 81,151	$ 99,768	$ 147,025