ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Reclassifications out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reclassifications out of accumulated other comprehensive income (loss)
Provision for income taxes	$ (4,274)	$ (44,532)	$ (6,558)	$ (49,305)
Net income (loss)	$ 50,585	(14,733)	(55,374)	$ (101,064)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income
Reclassifications out of accumulated other comprehensive income (loss)
Provision for income taxes		269	490
Net income (loss)		(436)	(811)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges | Interest Rate Swap | Reclassification out of Accumulated Other Comprehensive Income
Reclassifications out of accumulated other comprehensive income (loss)
Interest expense		$ (705)	$ (1,301)