Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
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| Intangible Asset, Finite-Lived [Line Items] | |||||
| Accumulated impairment charges | $ 649.6 | $ 649.6 | $ 649.6 | ||
| Aggregate amortization expense for amortizable intangible assets | 7.6 | $ 8.0 | 15.2 | $ 15.8 | |
| Domestic Operations | |||||
| Intangible Asset, Finite-Lived [Line Items] | |||||
| Accumulated impairment charges | 268.7 | 268.7 | 268.7 | ||
| International | |||||
| Intangible Asset, Finite-Lived [Line Items] | |||||
| Accumulated impairment charges | $ 380.9 | $ 380.9 | $ 380.9 | ||
| X | ||||||||||
- 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 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/2009/role/commonPracticeRef
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| X | ||||||||||
- 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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