Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Millions |
9 Months Ended | |
|---|---|---|
Sep. 30, 2026 |
Dec. 31, 2025 |
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| Goodwill [Roll Forward] | ||
| Goodwill, beginning balance | $ 1,859.5 | $ 1,872.4 |
| Measurement period adjustments | (0.1) | |
| Translation adjustment | (12.8) | |
| Goodwill, ending balance | 1,859.5 | |
| Gross Carrying Amount | 2,071.3 | 2,084.2 |
| Cumulative Impairment | (211.8) | (211.8) |
| Nuclear & Safety | ||
| Goodwill [Roll Forward] | ||
| Goodwill, beginning balance | 1,225.5 | 1,238.4 |
| Measurement period adjustments | (0.1) | |
| Translation adjustment | (12.8) | |
| Goodwill, ending balance | 1,225.5 | |
| Medical | ||
| Goodwill [Roll Forward] | ||
| Goodwill, beginning balance | 634.0 | $ 634.0 |
| Measurement period adjustments | 0.0 | |
| Translation adjustment | 0.0 | |
| Goodwill, ending balance | $ 634.0 |
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- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) asset representing future economic benefit from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Includes amount, before amortization expense and impairment loss, of goodwill for private company. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of accumulated impairment loss for asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase (decrease) from measurement period adjustment of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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