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Fixed Assets (Tables)
12 Months Ended
Dec. 31, 2012
Fixed Assets

Fixed assets consist of the following:

 

          As of December 31,  
     Useful Life    2012     2011  
          (in thousands)  

Computer equipment and software, office equipment and furniture

   3-7 years    $ 27,535      $ 17,617   

Leasehold improvements

   3-6 years      1,944        1,212   
     

 

 

   

 

 

 
        29,479        18,829   

Less: accumulated depreciation and amortization

        (15,693     (13,147
     

 

 

   

 

 

 
      $ 13,786      $ 5,682