Other Income (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2025 |
Mar. 31, 2024 |
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| Other Income and Expenses [Abstract] | ||||
| Interest income | $ 2.0 | $ 4.0 | $ 6.0 | $ 9.0 |
| Royalty income | 3.0 | 3.0 | 6.0 | 6.0 |
| Legacy product liability and environmental charges | (6.0) | (3.0) | (9.0) | (8.0) |
| Non-operating pension and postretirement benefit credit | 0.0 | 5.0 | 0.0 | 10.0 |
| Fair value adjustments for earnout payments (Note 5) | (5.0) | (7.0) | (5.0) | (7.0) |
| Other | 6.0 | 13.0 | 8.0 | 14.0 |
| Other income | $ 0.0 | $ 15.0 | $ 6.0 | $ 24.0 |
| X | ||||||||||
- Definition Legacy Product Liability and Environmental Charges No definition available.
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- Definition Non Operating Pension And Postretirement Benefit Credit (Cost) No definition available.
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- Definition Other Income (Expense), Other No definition available.
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- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of revenue and income classified as other. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Income earned by providing the use of assets to an outside party in exchange for a payment or series of payments that is nonoperating in nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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