GOODWILL AND INTANGIBLE ASSETS, NET (Details 2) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Intangible Assets, Net
Gross carrying amount	$ 85,280,000		$ 85,280,000		$ 85,280,000
Accumulated amortization	(26,687,000)		(26,687,000)		(20,330,000)
Net book value	58,593,000		58,593,000		64,950,000
Amount amortized			2,524,000	2,591,000
Remaining balance of Component 2 goodwill	1,400,000		1,400,000
Reductions of intangible assets generated by Component 2 goodwill that can be realized for U.S. tax purposes	800,000		800,000
Amortization expense for definite lived intangible assets	1,201,000	1,339,000	3,833,000	3,952,000
2012	5,000,000		5,000,000
2013	4,800,000		4,800,000
2014	4,500,000		4,500,000
2015	4,400,000		4,400,000
2016	4,300,000		4,300,000
Trademarks
Intangible Assets, Net
Weighted average estimated useful life			16 years
Gross carrying amount	10,614,000		10,614,000		10,614,000
Accumulated amortization	(3,942,000)		(3,942,000)		(3,353,000)
Net book value	6,672,000		6,672,000		7,261,000
Customer lists
Intangible Assets, Net
Weighted average estimated useful life			19 years
Gross carrying amount	38,366,000		38,366,000		38,366,000
Accumulated amortization	(17,203,000)		(17,203,000)		(13,010,000)
Net book value	21,163,000		21,163,000		25,356,000
Operating agreement
Intangible Assets, Net
Weighted average estimated useful life			20 years
Gross carrying amount	35,000,000		35,000,000		35,000,000
Accumulated amortization	(4,667,000)		(4,667,000)		(3,354,000)
Net book value	30,333,000		30,333,000		31,646,000
Non-compete agreement
Intangible Assets, Net
Weighted average estimated useful life			4 years
Gross carrying amount	1,300,000		1,300,000		1,300,000
Accumulated amortization	(875,000)		(875,000)		(613,000)
Net book value	$ 425,000		$ 425,000		$ 687,000