EARNINGS PER SHARE - EPS Calculation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Numerator:
Net income (loss)	$ 156,212	$ 45,615	$ 100,838	$ (55,449)
Net loss (income) attributable to noncontrolling interests	12			(12)
Net income (loss) attributable to common stockholders	$ 156,224	$ 45,615	$ 100,838	$ (55,461)
Denominator:
Weighted average basic common shares outstanding	39,473	39,465	39,469	39,459
Numerator:
Warrant Liability Gain	$ (123,640)	$ (24,690)	$ (57,450)
Adjusted net income (loss) attributable to common stockholders	$ 32,584	$ 20,925	$ 43,388	$ (55,461)
Denominator:
Weighted average basic common shares outstanding	39,473	39,465	39,469	39,459
Restricted stock and stock options (in shares)	405	405	415
Warrants (in shares)	3,035	3,301	3,035
Weighted average diluted common shares outstanding	42,913	43,171	42,919	39,459
Basic income (loss) per share: (in dollars per share)	$ 3.96	$ 1.16	$ 2.55	$ (1.41)
Diluted income (loss) per share: (in dollars per share)	$ 0.76	$ 0.48	$ 1.01	$ (1.41)