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SUPPLEMENTAL CASH FLOW DISCLOSURES (Tables)
12 Months Ended
Dec. 31, 2011
SUPPLEMENTAL CASH FLOW DISCLOSURES  
Schedule of Interest and income taxes paid
  •  

   
  2011   2010   2009  
 

Interest paid

  $ 247,879   $ 37,719   $ 4,182  
 

Income taxes paid

    45,399     26,300     12,139