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Inventories (Tables)
6 Months Ended
Jun. 30, 2019
Composition of Inventories, Net
Inventories, net consisted of the following at June 30, 2019 and December 31, 2018:
                 
 
June 30,
2019
   
December 31,
2018
 
 
(in thousands)
 
Raw material
  $
96,824
    $
89,365
 
Work-in-process
   
31,676
     
31,014
 
Finished goods
   
35,961
     
33,162
 
                 
  $
164,461
    $
153,541