EARNINGS PER SHARE - (Information Related to EPS Calculation) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Numerator:
Net income (loss)	$ 143,765	$ (105,959)
Net income (loss) attributable to common stockholders	$ 143,765	$ (105,959)
Denominator:
Weighted average basic common shares outstanding	39,473	39,465
Numerator:
Net Income (Loss) Available to Common Stockholders, Basic	$ 143,765	$ (105,959)
Less: Warrant Liability Gain	(29,820)
Adjusted net income (loss) attributable to common stockholders	$ 113,945	$ (105,959)
Denominator:
Weighted average basic common shares outstanding	39,473	39,465
Restricted stock and stock options (in shares)	357
Warrants (in shares)	2,570
Weighted average diluted common shares outstanding	42,400	39,465
Basic income (loss) per share: (in dollars per share)	$ 3.64	$ (2.68)
Diluted income (loss) per share: (in dollars per share)	$ 2.69	$ (2.68)