UNITHOLDERS' CAPITAL - Changes in Company Ownership Interest (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Stockholders' Equity Note [Abstract]
Net income attributable to Oaktree Capital Group, LLC	$ 58,297	$ 1,887	$ 135,422	$ 59,954
Equity reallocation between controlling and non-controlling interests	3,766	2,496	11,892	47,698
Change from net income attributable to Oaktree Capital Group, LLC and transfers from non-controlling interests	$ 62,063	$ 4,383	$ 147,314	$ 107,652