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Significant Stock-Based Plan Activity and Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2012
Significant Stock-Based Plan Activity and Stock-Based Compensation [Abstract]  
Stock-Based Compensation Expense
Total stock-based compensation expense, recognized as a component of Selling, general and administrative expense on our Consolidated Statements of Income, was as follows (in thousands):

   
Three Months Ended June 30,
  
Six Months Ended June 30,
 
   
2012
  
2011
  
2012
  
2011
 
Selling, general and administrative
 $177  $210  $311  $249