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Foreign Currency Translation (Tables)
 6 Months Ended
Jun. 30, 2012
Foreign Currency Translation [Abstract]  
Summary of impact of translating financial statements of Company's international subsidiaries
                                 
     Exchange Rate as of     Total Assets at     Accumulated
Other
Comprehensive
Income (Loss) For
Six Months Ended		  

Country

   June 30, 2012     December 31, 2011     June 30, 2012     June 30, 2012  

Brazil

     2.08       1.87     $ 300,827     $ (25,234 ) 

Mexico

     13.48       14.00     $ 129,894       2,819  

Argentina

     4.53       4.31     $ 131,859       (4,948 ) 

Colombia

     1,785.0       1,950.0     $ 41,769       2,451  

Chile

     501.0       520.7     $ 44,146       1,242  

All other

                             423  
                           

 

 

  
                            $ (23,247 )