GOODWILL AND INTANGIBLE ASSETS, NET (Details 2) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Intangible Assets, Net
Gross carrying amount	$ 338,497		$ 338,497		$ 338,497
Accumulated amortization	(111,128)		(111,128)		(93,251)
Net book value	227,369		227,369		245,246
Amortization expense for definite lived intangible assets	8,986	$ 10,107	17,877	$ 19,573
2015	38,000		38,000
2016	34,600		34,600
2017	30,400		30,400
2018	26,500		26,500
2019	23,300		23,300
Trademarks and trade names
Intangible Assets, Net
Gross carrying amount	13,889		13,889		13,889
Accumulated amortization	(5,999)		(5,999)		(5,016)
Net book value	7,890		$ 7,890		$ 8,873
Trademarks and trade names | Weighted average
Intangible Assets, Net
Weighted average estimated useful life (in years)			13 years		13 years
Customer related intangible assets
Intangible Assets, Net
Gross carrying amount	289,308		$ 289,308		$ 289,308
Accumulated amortization	(95,610)		(95,610)		(79,606)
Net book value	193,698		$ 193,698		$ 209,702
Customer related intangible assets | Weighted average
Intangible Assets, Net
Weighted average estimated useful life (in years)			10 years		10 years
Operating agreement
Intangible Assets, Net
Gross carrying amount	35,000		$ 35,000		$ 35,000
Accumulated amortization	(9,479)		(9,479)		(8,604)
Net book value	25,521		$ 25,521		$ 26,396
Operating agreement | Weighted average
Intangible Assets, Net
Weighted average estimated useful life (in years)			20 years		20 years
Intellectual property
Intangible Assets, Net
Gross carrying amount	300		$ 300		$ 300
Accumulated amortization	(40)		(40)		(25)
Net book value	$ 260		$ 260		$ 275
Intellectual property | Weighted average
Intangible Assets, Net
Weighted average estimated useful life (in years)			10 years		10 years