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Earnings Per Share
6 Months Ended
Jun. 30, 2011
Earnings Per Share  
Earnings Per Share

(18) EARNINGS PER SHARE

A reconciliation of the weighted average common shares outstanding used in the basic and diluted earnings per weighted average common share (EPS) calculation for the three and six months ended June 30 was as follows (in thousands):

 

     Three Months      Six Months  
     2011      2010      2011      2010  

Weighted average common shares outstanding:

           

Basic EPS calculation

     110,624         110,409         110,596         110,389   

Effect of dilutive share-based awards

     53         81         58         82   
                                   

Diluted EPS calculation

     110,677         110,490         110,654         110,471   
                                   

For the three and six months ended June 30, 2011 and 2010, there were no potentially dilutive securities excluded from the calculation of diluted EPS.