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Capital Stock Transactions
9 Months Ended
Sep. 30, 2011
Capital Stock Transactions [Abstract] 
Capital Stock Transactions
14.  Capital Stock Transactions
On February 22, 2011 our Board of Directors authorized $100 million of capital stock repurchases under the newly established February 2011 repurchase program.   We repurchased the following capital stock for the three and nine months ended September 30, 2011 and 2010:

   
Three months ended September 30,
   
Nine months ended September 30,
 
   
2011
   
2010
   
2011
   
2010
 
                         
Shares repurchased
    1,530,030       -       1,871,543       146,275  
Weighted average price per share
  $ 55.39     $ -     $ 60.30     $ 53.32