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Inventories
6 Months Ended
Jun. 30, 2018
Inventory Disclosure [Abstract]  
Inventories
Inventories
The following table sets forth the components of inventory:
(In thousands)
 
June 30, 2018
 
December 31, 2017
Finished products
 
$
79,059

 
$
66,064

Work in process
 
7,542

 
10,141

Raw materials and supplies
 
130,509

 
117,388

Inventories at current cost
 
217,110

 
193,593

Less: LIFO valuation
 
(39,854
)
 
(39,854
)
Total inventories
 
$
177,256

 
$
153,739