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Inventories
3 Months Ended
Mar. 31, 2017
Inventory, Net [Abstract]  
Inventories
The components of inventories are as follows:
 
 
March 31,
 
December 31,
(In Thousands)
2017
 
2016
Finished goods
$
21,639

 
$
16,215

Work-in-process
9,883

 
8,590

Raw materials
27,499

 
23,733

Stores, supplies and other
17,452

 
17,531

Total
$
76,473

 
$
66,069