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INCOME (LOSS) PER SHARE (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
INCOME (LOSS) PER SHARE    
Net income (loss) $ 17,887 $ (10,982)
Weighted average common shares:    
Basic (in shares) 297,159,000 296,778,000
Effect of employee stock-based awards (in shares) 1,251,000  
Diluted (in shares) 298,410,000 296,778,000
Net income (loss) per share:    
Basic (in dollars per share) $ 0.06 $ (0.04)
Diluted (in dollars per share) $ 0.06 $ (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) 1,500,000 1,800,000
Average exercise price of options outstanding (in dollars per share) $ 5.95 $ 5.98
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)   1,200,000