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Inventories
 12 Months Ended
Dec. 31, 2017
Inventory Disclosure [Abstract]  
Inventories
INVENTORIES

Inventories consisted of the following at December 31:
(In thousands)
2017
 
2016
 
 
Raw materials
$
233,187

 
$
155,044

 
 
Work in process
10,408

 
7,509

 
 
Finished goods
31,153

 
26,190

 
 
Inventories, net
$
274,748

 
$
188,743