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Revenue from Contracts with Customers (Tables) | 6 Months Ended
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Jun. 30, 2026
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following table provides information about disaggregated revenue by type of product:
| Three Months Ended June 30, |  | Six Months Ended June 30,
(Dollars in thousands) | 2026 |  | 2025 |  | 2026 |  | 2025
Graphite Electrodes | $ | 118,898 |  |  | $ | 119,440 |  |  | $ | 227,137 |  |  | $ | 220,702 |
By-products and other | 8,464 |  |  | 12,400 |  |  | 25,326 |  |  | 22,977 |
Total Revenues | $ | 127,362 |  |  | $ | 131,840 |  |  | $ | 252,463 |  |  | $ | 243,679 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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