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INCOME (LOSS) PER SHARE (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
Antidilutive Securities Excluded from Computation of Earnings Per Share        
Net income (loss) $ 2,633 $ (13,033) $ (5,462) $ (99,168)
Weighted average number of common shares 300,530 297,164 300,420 297,162
Net income (loss) per share $ 0.01 $ (0.04) $ (0.02) $ (0.33)
Weighted average common shares (thousands):        
Diluted (in shares) 300,530 297,164 300,420 297,162
Net income (loss) per share:        
Diluted (in dollars per share) $ 0.01 $ (0.04) $ (0.02) $ (0.33)
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) 4,500      
Average exercise price of options outstanding (in dollars per share) $ 3.34      
Other 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)   900