REGULATORY REQUIREMENTS (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Regulatory requirements
Minimum net capital requirement	$ 250
Moelis US
Regulatory requirements
Net capital	41,373	$ 80,270
Net capital in excess of required net capital	41,123	80,020
Moelis UK
Regulatory requirements
Net capital	17,586	22,980
Net capital in excess of required net capital	$ 17,531	$ 22,919