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Capital Stock
6 Months Ended
Jun. 30, 2012
Capital Stock [Abstract]  
CAPITAL STOCK
(11) CAPITAL STOCK

We have authorized capital stock of 485.0 million shares which includes 475.0 million shares of common stock and 10.0 million shares of preferred stock. We currently have no preferred stock issued or outstanding. The following is a schedule of changes in the number of common shares outstanding since the beginning of 2011:

 

                 
    Six Months
Ended

June 30,
2012
    Year
Ended
December 31,
2011
 
     

Beginning balance

    161,131,547       159,909,052  

Stock options/SARs exercised

    773,299       862,774  

Restricted stock grants

    354,674       326,591  

Restricted stock units vested

    52,417       —    

Treasury shares

    17,620       33,130  
   

 

 

   

 

 

 

Ending balance

    162,329,557       161,131,547