Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues	$ 170,041	$ 150,676	$ 515,448	$ 408,765
Expenses
Compensation and benefits	99,694	88,046	302,228	240,912
Occupancy	4,393	4,096	12,670	14,941
Professional fees	4,494	2,804	13,674	7,551
Communication, technology and information services	6,427	5,496	18,636	16,101
Travel and related expenses	7,294	4,490	21,990	16,452
Depreciation and amortization	891	817	2,570	2,359
Other expenses	6,969	4,813	18,059	10,885
Total expenses	130,162	110,562	389,827	309,201
Operating income (loss)	39,879	40,114	125,621	99,564
Other income and (expenses)	14,955	187	32,888	391
Income (loss) from equity method investments	2,791	1,562	4,565	3,897
Income (loss) before income taxes	57,625	41,863	163,074	103,852
Provision for income taxes	14,354	6,550	30,900	16,715
Net income (loss)	43,271	35,313	132,174	87,137
Net income (loss) attributable to noncontrolling interests	24,066	25,824	77,961	63,785
Net income (loss) attributable to Moelis & Company	19,205	9,489	54,213	23,352
Class A common stock
Expenses
Net income (loss) attributable to Moelis & Company	$ 19,205	$ 9,489	$ 54,213	$ 23,352
Weighted-average shares of Class A common stock outstanding
Basic (in shares)	32,505,940	20,926,745	29,094,514	20,807,189
Diluted (in shares)	39,784,633	24,301,063	35,872,847	23,516,239
Net income (loss) per share attributable to holders of shares of Class A common stock
Basic (in dollars per share)	$ 0.59	$ 0.45	$ 1.86	$ 1.12
Diluted (in dollars per share)	0.48	0.39	1.51	0.99
Dividends declared per share of Class A common stock	$ 0.37	$ 0.32	$ 2.11	$ 1.72