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Share-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2012
Share-based Compensation [Abstract]  
Share-Based Compensation Expense For Option Grants, Restricted Stock Awards And Restricted Stock Unit Awards
Set forth below is a summary of share-based compensation expense for option grants, restricted stock awards and restricted stock unit awards included as a component of Selling, general and administrative expenses in the Unaudited Condensed Statements of Consolidated Income for the three months ended March 31,:

 
2012
 
2011
Stock options and restricted stock awards
$
2,276

 
$
2,005

Restricted stock unit awards
343

 
182

Share-based compensation expense - employees
$
2,619

 
$
2,187

 

 

Share-based compensation expense - non-employee directors
$
131

 
$
75