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Foreign Currency Translation (Tables)
 9 Months Ended
Sep. 30, 2012
Foreign Currency Translation [Abstract]  
Summary of impact of translating financial statements of certain of Company's international subsidiaries
                                 
    Exchange Rate as of     Total Assets at    

Accumulated Other

Comprehensive

Income (Loss) For
Nine Months Ended

  

Country

   September 30, 2012     December 31, 2011     September 30, 2012     September 30, 2012  

Brazil

     2.03       1.87     $ 318,834     $ (19,595 ) 

Mexico

     12.88       14.00     $ 136,039       6,716  

Argentina

     4.74       4.31     $ 133,889       (9,688 ) 

Colombia

     1,800.52       1,950.0     $ 43,440       2,157  

Chile

     474.50       520.7     $ 51,584       3,422  

All other

                             1,084  
                           

 

 

  
                            $ (15,904 )