NET (LOSS) INCOME PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share
Net income (loss)	$ (3,018)	$ 12,985
Weighted average number of common shares	299,575	298,242
Effect of employee stock-based awards		312
Diluted shares outstanding	299,575	298,554
Net income (loss) per share:
Net income (loss) per share	$ (0.01)	$ 0.04
Diluted (in dollars per share)	(0.01)	$ 0.04
Options
Antidilutive Securities Excluded from Computation of Earnings Per Share
Options outstanding not included in the computation of diluted weighted average shares because their effect would have been anti-dilutive (in shares)		4,600
Average exercise price of options outstanding (in dollars per share)	$ 3.26