Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues	$ 233,506	$ 490,821	$ 778,114	$ 1,115,594
Expenses
Compensation and benefits	160,437	307,590	477,166	678,106
Occupancy	6,022	5,842	18,099	20,226
Professional fees	6,048	4,771	15,933	16,572
Communication, technology and information services	9,971	9,139	28,858	26,014
Travel and related expenses	7,389	4,469	24,398	8,949
Depreciation and amortization	1,918	1,947	5,798	5,033
Other expenses	6,672	4,915	21,187	17,885
Total expenses	198,457	338,673	591,439	772,785
Operating income (loss)	35,049	152,148	186,675	342,809
Other income and (expenses)	2,625	30,435	(2,656)	36,376
Income (loss) before income taxes	37,674	182,583	184,019	379,185
Provision (benefit) for income taxes	9,115	42,119	38,009	69,721
Net income (loss)	28,559	140,464	146,010	309,464
Net income (loss) attributable to noncontrolling interests	2,947	20,169	15,720	43,299
Net income (loss) attributable to Moelis & Company	25,612	120,295	130,290	266,165
Class A Common Stock
Expenses
Net income (loss) attributable to Moelis & Company	$ 25,612	$ 120,295	$ 130,290	$ 266,165
Weighted-average shares of Class A common stock outstanding
Basic (in shares)	65,873,976	63,024,943	65,684,485	62,493,293
Diluted (in shares)	69,829,338	68,274,912	70,183,414	67,631,068
Net income (loss) per share attributable to holders of shares of Class A common stock
Basic (in dollars per share)	$ 0.39	$ 1.91	$ 1.98	$ 4.26
Diluted (in dollars per share)	$ 0.37	$ 1.76	$ 1.86	$ 3.94