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Inventories (Tables)
12 Months Ended
Dec. 31, 2013
Inventory Disclosure [Abstract]  
Summary of Inventories

Inventory is comprised of the following:

 

     As of December 31,  
     2013      2012  

Component parts

   $ 12,203       $ 6,613   

Work-in-process and finished goods

     13,450         12,062   
  

 

 

    

 

 

 

Total

   $ 25,653       $ 18,675