INCOME TAXES - Components of the Provision for income taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Deferred Taxes:
Deferred taxes (benefit)	$ (106,200)	$ (228,739)
Total income tax expense (benefits)	$ (106,200)	$ (228,739)
Combined Federal and State effective income tax rate	36.30%	35.50%