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Segment Information (Tables)
12 Months Ended
Dec. 31, 2012
Summary of Net Revenue by Geographic Location

Net revenue by geographic location based on the location of customers was as follows (in thousands):

 

     Years Ended December 31,  
     2012      2011      2010  

United States

   $ 40,524       $ 32,782       $ 16,900   

International

     16,832         16,076         9,325   
  

 

 

    

 

 

    

 

 

 
   $ 57,356       $ 48,858       $ 26,225