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Net Income Per Share
3 Months Ended
Mar. 31, 2012
Net Income Per Share [Abstract]  
Net Income Per Share [Text Block]
3.
Net Income Per Share

The following table sets forth the computation of Net Income Per Share for the three-month periods ended March 31, 2012 and 2011 (in thousands, except per share data):

   
Three Months Ended
 
   
March 31,
 
   
2012
  
2011
 
        
Numerator for Basic and Diluted Earnings Per Share -
      
Net Income
 $324,009  $133,973 
          
Denominator for Basic Earnings Per Share -
        
Weighted Average Shares
  266,674   255,200 
Potential Dilutive Common Shares -
        
Stock Options/SARs
  1,800   1,937 
Restricted Stock and Restricted Stock Units
  1,768   1,682 
Denominator for Diluted Earnings Per Share -
        
Adjusted Diluted Weighted Average Shares
  270,242   258,819 
          
Net Income Per Share
        
Basic
 $1.22  $0.52 
Diluted
 $1.20  $0.52 

 
The diluted earnings per share calculation excludes stock options and SARs that were anti-dilutive.  Shares underlying the excluded stock options and SARs totaled 0.1 million and 0.2 million shares for the three months ended March 31, 2012 and 2011, respectively.