SUBSEQUENT EVENTS - (Details) (USD $)	12 Months Ended			1 Months Ended	0 Months Ended	3 Months Ended												12 Months Ended			0 Months Ended	1 Months Ended
	Dec. 31, 2013 OCGH Units	Dec. 31, 2012 OCGH Units	Dec. 31, 2011 OCGH Units	Jan. 31, 2014 OCGH Units Subsequent Event	Feb. 13, 2014 Class A Units	Dec. 31, 2013 Class A Units	Sep. 30, 2013 Class A Units	Jun. 30, 2013 Class A Units	Mar. 31, 2013 Class A Units	Dec. 31, 2012 Class A Units	Sep. 30, 2012 Class A Units	Jun. 30, 2012 Class A Units	Mar. 31, 2012 Class A Units	Dec. 31, 2011 Class A Units	Sep. 30, 2011 Class A Units	Jun. 30, 2011 Class A Units	Mar. 31, 2011 Class A Units	Dec. 31, 2013 Class A Units	Dec. 31, 2012 Class A Units	Dec. 31, 2011 Class A Units	Feb. 13, 2014 Class A Units Subsequent Event	Jan. 31, 2014 Class A Units Subsequent Event
Subsequent Event [Line Items]
Number of units granted (in shares)	763,000	2,457,502	1,523,300	1,667,300														8,508	14,969	0		7,164
Units vesting periods (in years)																						5 years
Distribution Made to Member or Limited Partner, Distributions Paid (in dollars per share)					$ 4.66	$ 0.74	$ 1.51	$ 1.41	$ 1.05	$ 0.55	$ 0.79	$ 0.55	$ 0.42	$ 0.29	$ 0.51	$ 0.64	$ 0.90	$ 4.71	$ 2.31	$ 2.34	$ 1