Goodwill and Intangible Assets - Schedule of Balances of Acquired Intangible Assets, Excluding Goodwill (Details) - USD ($) $ in Millions |
6 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Finite-Lived Intangible Assets [Line Items] | ||
| Original cost | $ 221.7 | $ 222.7 |
| Accumulated amortization | (173.1) | (170.1) |
| Carrying value | 48.6 | 52.6 |
| Customer Lists | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Original cost | 174.9 | 174.9 |
| Accumulated amortization | (130.1) | (128.1) |
| Carrying value | $ 44.8 | $ 46.8 |
| Weighted average original life (in years) | 14 years | 14 years |
| Trade Names | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Original cost | $ 30.4 | $ 31.1 |
| Accumulated amortization | (27.4) | (26.6) |
| Carrying value | $ 3.0 | $ 4.5 |
| Weighted average original life (in years) | 10 years | 10 years |
| Technology | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Original cost | $ 16.4 | $ 16.7 |
| Accumulated amortization | (15.6) | (15.4) |
| Carrying value | $ 0.8 | $ 1.3 |
| Weighted average original life (in years) | 12 years | 12 years |
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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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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/exampleRef
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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