EARNINGS PER COMMON SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Basic:
Net income (loss) available to common stockholders	$ 186,853	$ (859,897)	$ 35,597	$ (818,060)
Weighted average basic number of common shares outstanding	416,470	392,726	415,264	368,696
Basic net income (loss) per common share (in dollars per share)	$ 0.45	$ (2.19)	$ 0.09	$ (2.22)
Diluted:
Net income (loss) available to common stockholders	186,853	(859,897)	35,597	(818,060)
Net income from assumed conversions	9,004
Net income (loss) available to common stockholders after assumed conversions	$ 195,857	$ (859,897)	$ 35,597	$ (818,060)
Weighted average basic number of common shares outstanding	416,470	392,726	415,264	368,696
Common stock equivalent shares representing shares issuable upon exercise of stock options	741,000		452,000
Common stock equivalent shares representing shares issuable upon exercise of February 2012 Warrants	7,549,000		5,226,000
Common stock equivalent shares representing shares issuable upon vesting of restricted shares	2,609,000		1,608,000
Common stock equivalent shares representing shares included upon vesting of performance share units	463,000		483,000
Common stock equivalent shares representing shares issuable upon conversion of 2017 Notes	64,371,000
Common stock equivalent shares representing shares issuable upon conversion of preferred stock	56,043,000
Weighted average diluted number of common shares outstanding	548,246	392,726	423,033	368,696
Diluted net income (loss) per common share (in dollars per share)	$ 0.36	$ (2.19)	$ 0.08	$ (2.22)
Common stock equivalents of stock options, restricted shares, performance units, warrants and convertible debt and convertible preferred stock, not included in the computations of diluted earnings per share of common stock as their effect would have been anti-dilutive (in shares)	9,900,000	170,900,000	144,200,000	142,400,000