Condensed Consolidated Statements of Changes in Unitholders' Capital (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended					6 Months Ended					6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Class A units	Jun. 30, 2011 Class A units	Dec. 31, 2010 Class A units	Jun. 30, 2012 Class B units	Jun. 30, 2011 Class B units	Jun. 30, 2012 Class C units	Jun. 30, 2011 Class C units	Dec. 31, 2010 Class C units	Jun. 30, 2012 Paid-in Capital	Jun. 30, 2011 Paid-in Capital	Jun. 30, 2012 Paid-in Capital Class A units	Jun. 30, 2012 Accumulated Deficit	Jun. 30, 2011 Accumulated Deficit	Jun. 30, 2012 Accumulated Other Comprehensive Income (Loss)	Jun. 30, 2011 Accumulated Other Comprehensive Income (Loss)	Jun. 30, 2012 OCGH Non-Controlling Interest in Consolidated Subsidiaries	Jun. 30, 2011 OCGH Non-Controlling Interest in Consolidated Subsidiaries
Unitholders' capital, shares			22,664,000	22,664,000	22,664,000	125,847,000	125,431,000	13,000	13,000	13,000
Unitholders' capital, value	$ 1,124,000	$ 1,236,716									$ 634,739	$ 549,466		$ (444,713)	$ (348,741)	$ (1,884)	$ (372)	$ 935,858	$ 1,036,363
Activity for the six months ended June 30, 2012 and June 30, 2011, respectively:
Issuance of units	322,260,000		7,904,000			2,313,000	1,523,000				322,260,000
Forfeitures of units						(5,000)	(17,000)
Conversion of Class C Units into Class A Units			13,000					(13,000)
Repurchase and cancellation of Class A Units, Shares			(400,000)				(1,075,000)
Repurchase and cancellation of Class A Units, Value	(14,132)												(14,132)
Cancellation of Class B Units						(7,904,000)
Purchase of Oaktree Operating Group units from OCGH Unitholders	(322,260)										(322,260)
Deferred tax effect resulting from the purchase of Oaktree Operating Group Units	15,490										15,490
Repurchase and cancellation of OCGH Units	(675)	(39,623)																(675)	(39,623)
Equity reallocation between controlling and non-controlling interests											69,175	(6,419)						(69,175)	6,419
Capital increase related to equity-based compensation	19,984	472,550									3,367	72,048						16,617	400,502
Contributions		848																	848
Distributions declared	(192,369)	(325,266)									(26,347)	(34,922)						(166,022)	(290,344)
Net income (loss)	303,448	(139,207)												43,327	(30,486)			260,121	(108,721)
Foreign currency translation adjustment, net of tax	(169)	1,424														(69)	217	(100)	1,207
Unrealized loss on interest rate swap designated as cash flow hedge, net of tax	(899)	(3,125)														(183)	(478)	(716)	(2,647)
Unitholders' capital, shares			30,181,000	22,664,000	22,664,000	120,251,000	125,862,000		13,000	13,000
Unitholders' capital, value	$ 1,254,678	$ 1,204,317									$ 682,292	$ 580,173		$ (401,386)	$ (379,227)	$ (2,136)	$ (633)	$ 975,908	$ 1,004,004