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Inventories
3 Months Ended
Mar. 31, 2024
Inventories [Abstract]  
Inventories
Note 6.   Inventories

Inventories, which are stated at the lower of cost (determined by means of the first-in, first-out method) and net realizable value, consist of the following:

 
 
March 31,
2024
   
December 31,
2023
 
 
 
(In thousands)
 
Finished goods
 
$
314,809
   
$
302,557
 
Work in process
   
17,344
     
18,503
 
Raw materials
   
188,549
     
186,015
 
Subtotal
   
520,702
     
507,075
 
Unreturned customer inventories
   
18,007
     
18,240
 
Total inventories
 
$
538,709
   
$
525,315