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Stockholders' Equity (Tables)
 3 Months Ended
Mar. 31, 2014
Equity [Abstract]  
Number and Cost of Common Stock Shares Repurchased

The number and the cost of common stock shares repurchased during the three months ended March 31, 2014 and 2013, are reflected in the following table (in thousands):

 

     Three Months Ended
March 31,		  
     2014      2013  

Common stock repurchased (in shares)

      825         836   

Common stock repurchased

    $ 33,415       $ 29,740   
Number and Cost of Employee Stock Plan Repurchases

The number and the cost of employee stock plan repurchases made during the three months ended March 31, 2014 and 2013, are reflected in the following table (in thousands):

 

     Three Months Ended
March 31,		  
     2014      2013  

Employee stock plan repurchased (in shares)

      239         453   

Employee stock plan repurchased

    $ 9,876       $ 15,933