Quarterly report pursuant to Section 13 or 15(d)

EQUITY (Antidilutive Securities Excluded from Computation of Earnings per Share) (Details)

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EQUITY (Antidilutive Securities Excluded from Computation of Earnings per Share) (Details)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Number of anti-dilutive potentially issuable shares excluded from diluted common shares outstanding (in shares) 33,368 34,114
Options to purchase shares of common stock [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Number of anti-dilutive potentially issuable shares excluded from diluted common shares outstanding (in shares) 22,078 21,509
Restricted stock awards and units - unvested [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Number of anti-dilutive potentially issuable shares excluded from diluted common shares outstanding (in shares) 2,685 4,000
Warrants [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Number of anti-dilutive potentially issuable shares excluded from diluted common shares outstanding (in shares) 500 500
Conversion shares related to 2.875% convertible senior notes [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Number of anti-dilutive potentially issuable shares excluded from diluted common shares outstanding (in shares) 8,105 8,105