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Inventories (Tables)
3 Months Ended
Mar. 31, 2024
Inventory Disclosure [Abstract]  
Summary of Inventories
Inventories valued at LIFO
(last-in,
first-out),
consist of the following (in thousands):
 
    
March 31,

2024
    
December 31,

2023
 
Finished goods
   $ 89,619      $ 88,840  
Raw materials
     67,705        51,688  
  
 
 
    
 
 
 
Total FIFO
(first-in,
first-out)
inventories
     157,324        140,528  
Reserve to adjust inventories to LIFO value
     (33,439      (33,439
  
 
 
    
 
 
 
Total LIFO inventories
   $ 123,885      $ 107,089