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Inventories
 3 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
Inventories Inventories
The following table sets forth the components of inventory:
(In thousands)
 
March 31, 2020
 
December 31, 2019
Finished products
 
$
74,180

 
$
71,918

Work in process
 
8,072

 
4,083

Raw materials and supplies
 
155,587

 
151,129

Inventories at current cost
 
237,839

 
227,130

Less: LIFO valuation
 
(42,192
)
 
(42,103
)
Total inventories
 
$
195,647

 
$
185,027