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Segment Information (Tables) | 12 Months Ended
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Dec. 31, 2024
Segment Reporting [Abstract] |
Revenue from External Customers by Geographic Areas | Net sales by geographic area are reported by the country in which the customer is domiciled.
|  | Year Ended December 31, |
|  | 2024 |  |  | 2023 |  |  | 2022 |
Net Sales: |  |  |  |  |  |  |  |  |
United States |  | $ | 951.0 |  |  | $ | 1,239.4 |  |  | $ | 1,201.3 |
Foreign |  |  | 133.0 |  |  |  | 123.0 |  |  |  | 128.6 |
|  | $ | 1,084.0 |  |  | $ | 1,362.4 |  |  | $ | 1,329.9 |
Long-lived Assets by Geographic Areas | Long-lived assets include property, plant and equipment and intangible assets subject to amortization. Long-lived assets by geographic area are reported by the location of the Metallus operations to which the asset is attributed.
|  | December 31, |
|  | 2024 |  |  | 2023 |
Long-lived Assets, net: |  |  |  |  |  |
United States |  | $ | 522.0 |  |  | $ | 506.2 |
Foreign |  |  | 0.4 |  |  |  | 0.4 |
|  | $ | 522.4 |  |  | $ | 506.6 |

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- Definition Tabular disclosure of long-lived assets, excluding financial instruments, long-term customer relationships of a financial institution, mortgage rights, deferred policy acquisition costs, and deferred tax assets, by geographic areas located in the entity's country of domicile and foreign countries in which the entity holds assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 + Details
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- Definition Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 + Details
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