ORGANIZATION AND BASIS OF PRESENTATION - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended		0 Months Ended		1 Months Ended				1 Months Ended	0 Months Ended
	May 31, 2007 vote	Dec. 31, 2013	Dec. 31, 2012	May 29, 2013 Class A Units	Apr. 12, 2012 Class A Units	May 31, 2007 Class B Units	Apr. 12, 2012 Class A Unitholders	May 31, 2007 Class A Unitholders	Apr. 12, 2012 Principals	May 31, 2007 OCGH	May 21, 2007 Private Placement Class A Units
Common Equity [Line Items]
Stocks sold by Oaktree Capital Group, LLC (in shares)				8,050,000.00							23,000,000
Net proceeds of stock issued		$ 419,908,000	$ 322,260,000								$ 944,200,000
Primary proceeds											$ 243,000,000
Voting interest in Oaktree Capital Group, LLC (as a percent)							20.00%	15.86%
Direct economic interest in Oaktree Operating Group (as a percent)										84.14%
Entitlement of voting rights - Class B units (in votes)	10
Entitlement of voting rights - Class A units (in votes)	1
Voting interest in Oaktree Capital Group, LLC (as a percent)						98.15%
Stocks sold by Oaktree Capital Group, LLC (in shares)					7,888,864
Class A units sold by the selling unitholders (in shares)					954,159
Percentage of voting power (as a percent)									98.00%