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Supplemental Cash Flow Information
12 Months Ended
Dec. 31, 2012
Supplemental Cash Flow Information [Abstract]  
Supplemental Cash Flow Information

Note 16: Supplemental Cash Flow Information

Supplemental cash flow information for each of the three years in the period ended December 31, 2012 is as follows:

 

                         
     2012     2011     2010  

Supplemental cash flow information:

                       

Interest paid, net of amounts capitalized

  $ 68,051     $ 68,607     $ 71,993  

Income taxes paid, net of refunds

  $ 8,448     $ 26,983     $ 26,061