Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenues	$ 172,149	$ 131,725	$ 345,407	$ 258,089
Expenses
Compensation and benefits	100,808	78,198	202,534	152,866
Occupancy	4,097	6,287	8,277	10,845
Professional fees	3,939	2,511	9,180	4,747
Communication, technology and information services	6,738	5,309	12,209	10,605
Travel and related expenses	8,105	5,831	14,696	11,962
Depreciation and amortization	822	806	1,679	1,542
Other expenses	4,932	2,224	11,090	6,072
Total expenses	129,441	101,166	259,665	198,639
Operating income (loss)	42,708	30,559	85,742	59,450
Other income and (expenses)	17,695	101	17,933	204
Income (loss) from equity method investments	(1,330)	266	1,774	2,335
Income (loss) before income taxes	59,073	30,926	105,449	61,989
Provision for income taxes	9,549	4,721	16,546	10,165
Net income (loss)	49,524	26,205	88,903	51,824
Net income (loss) attributable to noncontrolling interests	29,794	19,312	53,895	37,961
Net income (loss) attributable to Moelis & Company	19,730	6,893	35,008	13,863
Class A common stock
Expenses
Net income (loss) attributable to Moelis & Company	$ 19,730	$ 6,893	$ 35,008	$ 13,863
Weighted-average shares of Class A common stock outstanding
Basic (in shares)	28,165,552	20,745,043	27,325,145	20,654,657
Diluted (in shares)	34,374,882	23,618,093	33,752,139	23,052,255
Net income (loss) per share attributable to holders of shares of Class A common stock
Basic (in dollars per share)	$ 0.70	$ 0.33	$ 1.28	$ 0.67
Diluted (in dollars per share)	0.57	0.29	1.04	0.60
Dividends declared per share of Class A common stock	$ 1.37	$ 0.30	$ 1.74	$ 1.4