REGULATORY REQUIREMENTS (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Regulatory requirements
Minimum net capital requirement	$ 250
Moelis US
Regulatory requirements
Net capital	55,156	$ 41,373
Net capital in excess of required net capital	54,906	41,123
Moelis UK
Regulatory requirements
Net capital	16,026	17,586
Net capital in excess of required net capital	$ 15,971	$ 17,531