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Inventories
3 Months Ended
Mar. 31, 2025
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories are comprised of the following: 
March 31, 2025December 31, 2024
 (Dollars in thousands)
Inventories:
Raw materials and supplies$87,205 $78,386 
Work in process133,933 122,590 
Finished goods33,129 30,265 
         Total$254,267 $231,241 
In the first quarter of 2025, we recorded a lower of cost or market (“LCM”) inventory valuation adjustment of $2.8 million in order to state our inventories at the lower of cost or market.