ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Reclassifications out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Reclassifications out of accumulated other comprehensive income (loss)
Provision for income taxes	$ (18,237)	$ (590)	$ (24,795)	$ (49,895)
Net income (loss)	156,212	$ 45,615	100,838	$ (55,449)
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	(280)		(770)
Net income (loss)	466		1,276
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	$ 746		$ 2,046