Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenues	$ 264,586	$ 179,871	$ 482,071	$ 367,691
Expenses
Compensation and benefits	197,873	145,794	362,348	294,033
Occupancy	7,073	6,872	14,162	12,706
Professional fees	5,961	6,907	12,126	11,853
Communication, technology and information services	11,990	11,215	24,234	22,049
Travel and related expenses	8,511	9,213	20,474	20,181
Depreciation and amortization	2,434	1,936	4,809	4,009
Other expenses	10,676	7,520	18,048	13,837
Total expenses	244,518	189,457	456,201	378,668
Operating income (loss)	20,068	(9,586)	25,870	(10,977)
Other income and (expenses)	1,708	(5,629)	5,937	(3,883)
Income (loss) before income taxes	21,776	(15,215)	31,807	(14,860)
Provision (benefit) for income taxes	6,855	(1,969)	(599)	(5,177)
Net income (loss)	14,921	(13,246)	32,406	(9,683)
Net income (loss) attributable to noncontrolling interests	1,760	(1,272)	2,679	(1,375)
Net income (loss) attributable to Moelis & Company	13,161	(11,974)	29,727	(8,308)
Class A Common Stock
Expenses
Net income (loss) attributable to Moelis & Company	$ 13,161	$ (11,974)	$ 29,727	$ (8,308)
Weighted-average shares of Class A common stock outstanding
Basic (in shares)	72,148,948	68,504,772	71,239,595	67,852,077
Diluted (in shares)	75,788,525	68,504,772	75,593,865	67,852,077
Net income (loss) per share attributable to holders of shares of Class A common stock
Basic (in dollars per share)	$ 0.18	$ (0.17)	$ 0.42	$ (0.12)
Diluted (in dollars per share)	$ 0.17	$ (0.17)	$ 0.39	$ (0.12)