SEGMENT REPORTING - Reconciliation of Net Income (Loss) Attributable to Oaktree Capital Group, LLC to Adjusted Net Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012		Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Net income (loss) attributable to Oaktree Capital Group, LLC	$ 64,907		$ 42,948	$ 56,577	$ 57,566	$ 39,271		$ 25,212	$ 24,719	$ 18,608	$ 221,998		$ 107,810		$ (95,972)
Management fees											192,605	[1]	134,568	[1]	140,715	[1]
Incentive income revenue											(64,460)	[2]	0	[2]	0	[2]
Incentive income compensation expense											46,334	[2]	0	[2]	0	[2]
Equity-based compensation											28,441		36,342		948,746
Income tax expense of Intermediate Holding Companies											26,232	[3]	30,858	[3]	21,088	[3]
Non-Operating Group other income											0	[4]	(6,260)	[4]	0	[4]
Non-Operating Group expenses											1,195	[4]	553	[4]	768	[4]
OCGH non-controlling interest											824,795	[4]	548,265	[4]	(446,246)	[4]
Adjusted net income											1,080,707		717,250		428,384
Corporate investments (includes $67,596 and $0 measured at fair value as of December 31, 2013 and 2012, respectively)	169,927	[5]				98,950	[5]				169,927	[5]	98,950	[5]	121,825	[5]
OCGH Units Prior to Initial Public Offering in April 2012
Equity-based compensation											$ 24,613	[6]	$ 36,024	[6]	$ 948,746	[6]

[1] The adjustment represents the elimination of amounts attributable to the consolidated funds.

[2] nterest income was $3.2 million, $2.6 million and $2.3 million for the years ended December 31, 2013, 2011 and 2010, respectively.

[3] Because adjusted net income is a pre-tax measure, this adjustment eliminates the effect of income tax expense from adjusted net income.

[4] Because adjusted net income is calculated at the Operating Group level, this adjustment adds back the effect of items applicable to OCG, its Intermediate Holding Companies or the OCGH non-controlling interest.

[5] The adjustment to corporate investments is to remove from segment assets the consolidated funds that are treated as equity method investments for segment reporting purposes.

[6] This adjustment adds back the effect of timing differences associated with the recognition of incentive income and incentive income compensation expense between adjusted net income and net income attributable to OCG. There were no adjustments attributable to timing differences for 2012 and 2011.