Segment Information - Schedule of Segment Assets (Details) - USD ($) $ in Millions |
9 Months Ended | 12 Months Ended |
|---|---|---|
Sep. 30, 2026 |
Dec. 31, 2025 |
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| Segment Reporting [Line Items] | ||
| Segment assets | $ 2,729.2 | $ 2,704.0 |
| Composite Materials | ||
| Segment Reporting [Line Items] | ||
| Segment assets | 2,066.6 | 2,066.7 |
| Engineered Products | ||
| Segment Reporting [Line Items] | ||
| Segment assets | 640.2 | 596.2 |
| Corporate & Other and Intersegment Elimination | ||
| Segment Reporting [Line Items] | ||
| Segment assets | $ 22.4 | $ 41.1 |
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- Definition Amount of expenditure for addition to long-lived asset included in determination of segment asset by chief operating decision maker (CODM) or otherwise regularly provided to CODM. Long-lived asset excludes financial instrument, long-term customer relationship of financial institution, mortgage and other servicing rights, deferred policy acquisition cost, and deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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