Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

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Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Inventory, Net    
Finished products and work in process $ 43,337 $ 46,894
Raw materials 6,392 6,919
Inventories, net 49,729 53,813
Valued at lower of cost or market:    
LIFO basis 24,304 33,330
Valued at lower of cost and net realizable value:    
FIFO or average cost basis 25,425 20,483
Inventories, net $ 49,729 $ 53,813