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Inventories
3 Months Ended
Mar. 31, 2019
Inventory Disclosure [Abstract]  
Inventories
Inventories
The following table sets forth the components of inventory:
(In thousands)
 
March 31, 2019
 
December 31, 2018
Finished products
 
$
75,164

 
$
65,965

Work in process
 
8,517

 
6,169

Raw materials and supplies
 
129,248

 
124,554

Inventories at current cost
 
212,929

 
196,688

Less: LIFO valuation
 
(40,266
)
 
(40,086
)
Total inventories
 
$
172,663

 
$
156,602