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Goodwill (Tables)
3 Months Ended
Mar. 31, 2012
Goodwill [Abstract]  
Schedule Of Goodwill
     Three Months
Ended
March 31, 2012
     Three Months
Ended
March 31, 2011
 

Beginning balance,

   $ 45,430       $ 38,895   

Translation effect

     197         —     

Ending balance

   $ 45,627       $ 38,895