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Inventories (Tables)
 3 Months Ended
Mar. 28, 2015
Inventories

Inventories consist of the following:

 

     As of
March 28, 2015		      As of
December 31, 2014		  

Raw materials

    $ 27,428       $ 27,058   

Finished goods

      18,615         13,075   

Sales demonstration inventory

      20,609         19,201   
  

 

 

     

 

 

  

Inventory, net

 $ 66,652    $ 59,334   
  

 

 

     

 

 

  

Service inventory

 $ 21,494    $ 20,646