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Inventories | 6 Months Ended
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Jun. 30, 2026
Inventory Disclosure [Abstract] |
Inventories | Inventories Inventories are comprised of the following:
(Dollars in thousands) | June 30, 2026 |  | December 31, 2025
Inventories: |  |  |
Raw materials and supplies | $ | 81,683 |  |  | $ | 76,115 |
Work in process | 119,451 |  |  | 116,933 |
Finished goods | 36,130 |  |  | 31,644 |
Total | $ | 237,264 |  |  | $ | 224,692 |
In the second quarter and first six months of 2026, we recorded lower of cost or market (“LCM”) inventory valuation adjustments of $2.5 million and $7.8 million, respectively, compared to $1.9 million and $4.7 million, in the second quarter and first six months of 2025, respectively, in order to state our inventories at net realizable value.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 330 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/330/tableOfContent + Details
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