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Inventories (Tables)
 12 Months Ended
Dec. 31, 2016
Inventory Disclosure [Abstract]  
Summary of Inventories
     December 31,      December 31,  
     2016      2015  

Raw materials

    $ 49,205      $ 50,204  

Work in process

      31,348        30,604  

Finished goods

      34,298        39,028  
  

 

 

     

 

 

  

Inventories

    $ 114,851      $ 119,836