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Inventories (Tables)
 12 Months Ended
Dec. 31, 2013
Inventories

Inventories consisted of the following as of December 31 (in thousands):

 

     2013      2012  

Raw materials

    $ 52,455       $ 57,355   

Work in process

      11,895         13,659   

Finished goods

      15,783         17,467   
  

 

 

     

 

 

  
   $ 80,133       $ 88,481