OPERATING SEGMENTS (Details 3) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Revenue, Property and Equipment and Intangible Assets Outside of the United States
Total revenue	$ 139,732	$ 66,019	$ 276,383	$ 119,373
Total long- lived assets	494,568		494,568		$ 506,351
United States
Revenue, Property and Equipment and Intangible Assets Outside of the United States
Total revenue	129,568	51,375	254,331	88,646
Total long- lived assets	439,458		439,458		446,412
Canada
Revenue, Property and Equipment and Intangible Assets Outside of the United States
Total revenue	10,164	$ 14,644	22,052	$ 30,727
Total long- lived assets	$ 55,110		$ 55,110		$ 59,939