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Reportable Segments - Reportable Segment Financial Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2025 | Sep. 30, 2024
EMG |  |  |
Segment Reporting Information [Line Items] |  |  |
Property, plant and equipment | $ 33.9 | $ 33.9 | $ 29.2
Acquisition-related costs | 7.8 | 7.8 |
EIG |  |  |
Segment Reporting Information [Line Items] |  |  |
Property, plant and equipment | 23.1 | 23.1 |
Acquisition-related costs | $ 12.0 | $ 12.0 |

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- Definition Amount of expense for acquisition-related cost incurred to effect business combination. Includes, but is not limited to, finder's fee; advisory, legal, accounting, valuation, and other professional and consulting fees; and general administrative cost, including cost of maintaining internal acquisition department. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479328/805-10-50-7 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 25 -Paragraph 23 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479405/805-10-25-23 + Details
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