Quarterly report pursuant to Section 13 or 15(d)

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

v3.4.0.3
EQUITY (Antidilutive Securities Excluded from Computation of Earnings per Share) (Details) - shares
shares in Thousands
 3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Number of anti-dilutive potentially issuable shares excluded from diluted common shares outstanding 26,338 27,314
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 17,322 18,400
Restricted stock awards - 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 1,086 984
Conversion shares related to the 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 7,930 7,930