Other Intangible Assets - Summary of Other Intangible Assets (Detail) - USD ($) $ in Millions |
6 Months Ended | ||
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
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| Intangible Asset, Goodwill and Other [Abstract] | |||
| Gross cost at January 1 | $ 373.3 | ||
| Additions | 5.0 | ||
| Exchange effect | (3.6) | ||
| Gross cost at June 30 | 374.7 | ||
| Accumulated amortization at January 1 | (305.6) | ||
| Amortization expense | (5.4) | $ (5.9) | |
| Exchange effect | 1.6 | ||
| Accumulated amortization at June 30 | (309.4) | ||
| Net book amount at June 30 | $ 65.3 | $ 67.7 | |
| X | ||||||||||
- Definition Amount of increase (decrease) to amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life for foreign currency translation adjustments. No definition available.
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- Definition Amount of amortization expense for finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of accumulated amortization of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before accumulated amortization, of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of increase (decrease) in finite-lived intangible asset from measurement period adjustment. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition Amount, after accumulated amortization, of finite- and indefinite-lived intangible assets and capitalized cost for software to be sold, leased, or marketed. Excludes goodwill. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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