INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income taxes	$ (28,045)	$ 32,953	$ 19,902	$ 96,532
Pre-tax income	(88,526)	$ 77,785	$ 98,615	$ 275,077
Effective income tax rate (as a percent)			20.20%	35.10%
Unrecognized tax benefits	14,574		$ 14,574
Unrecognized tax benefits that, if recognized, would be reflected as a component of income tax expense	8,163		8,163
Reasonably possible reduction in prior years' unrecognized tax benefits during the next twelve months	$ 3,369		$ 3,369
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority					$ (24,976)
Interest Received On Income Tax Examination Refund From Settlement With Taxing Authority					$ 1,596