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Stock Repurchases (Tables)
12 Months Ended
Dec. 31, 2013
Text Block [Abstract]  
Summary of Common Stock Shares Repurchased

Summary of common stock shares repurchased:

 

     Year Ended
December 31,
2013
     Year Ended
December 31,
2012
     Year Ended
December 31,
2011
 

Private transaction

     —          —          552,536   

Repurchase program

     —          50,900         104,577   

Exercise of stock options

     18,283         69,272         48,432   

Tax withholding obligations on stock options

     8,644         39,005         46,401   

Tax withholding obligations on restricted shares

     81,967         42,785         24,953   
  

 

 

    

 

 

    

 

 

 

Total

     108,894         201,962         766,899   
Value of Common Stock Shares Repurchased

Value of common stock shares repurchased:

 

     Year Ended
December 31,
2013
     Year Ended
December 31,
2012
     Year Ended
December 31,
2011
 

Private transaction

   $ —        $ —        $ 14,927   

Repurchase program

     —          1,201         3,099   

Exercise of stock options

     405         1,660         1,651   

Tax withholding obligations on stock options

     194         949         1,658   

Tax withholding obligations on restricted shares

     1,628         950         713   
  

 

 

    

 

 

    

 

 

 

Total

   $ 2,227       $ 4,760       $ 22,048