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Inventories, net (Tables)
 6 Months Ended
Jun. 30, 2018
Inventories, net  
Schedule of components of inventories

 

 

 

 

 

 

 

 

 

 

June 30,

 

December 31,

 

 

    

2018

    

2017

    

 

 

(in thousands)

 

Raw materials

 

$

85,077

 

$

82,313

 

Work in process

 

 

34,560

 

 

31,651

 

Finished goods (completed systems)

 

 

9,917

 

 

6,580

 

     Inventories, net

 

$

129,554

 

$

120,544