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Inventories (Tables)
 12 Months Ended
Dec. 31, 2017
Inventories [Abstract]  
Components Of Inventories



 

 

 

 

 

(in thousands)

2017

 

2016

Raw materials

$

 37,660 

 

$

 38,383 

Work in process

 

 3,906 

 

 

 3,109 

Finished goods and parts

 

 62,337 

 

 

 61,839 

Inventories, net

$

 103,903 

 

$

 103,331