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Inventories (Tables)
12 Months Ended
Dec. 31, 2017
Inventories  
Schedule of inventories

 

 

December 31,

 

 

 

2017

 

2016

 

 

 

(in thousands)

 

Materials

 

$

59,919

 

$

46,457

 

Work-in-process

 

37,222

 

25,250

 

Finished goods

 

23,125

 

5,356

 

 

 

 

 

 

 

Total

 

$

120,266

 

$

77,063