Property, Plant and Equipment (Details) - USD ($) $ in Millions |
Mar. 31, 2026 |
Sep. 30, 2025 |
|---|---|---|
| Property, Plant, and Equipment [Line Items] | ||
| Property, plant and equipment | $ 752.3 | $ 791.3 |
| Less: accumulated depreciation | (514.8) | (534.1) |
| Total Property, Plant and Equipment, Net | 237.5 | 257.2 |
| Land | ||
| Property, Plant, and Equipment [Line Items] | ||
| Property, plant and equipment | 3.1 | 3.1 |
| Buildings | ||
| Property, Plant, and Equipment [Line Items] | ||
| Property, plant and equipment | 116.8 | 121.0 |
| Machinery, equipment and fixtures | ||
| Property, Plant, and Equipment [Line Items] | ||
| Property, plant and equipment | 569.9 | 595.4 |
| Leasehold improvements | ||
| Property, Plant, and Equipment [Line Items] | ||
| Property, plant and equipment | 6.0 | 13.2 |
| Construction in progress | ||
| Property, Plant, and Equipment [Line Items] | ||
| Property, plant and equipment | $ 56.5 | $ 58.6 |
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- Definition Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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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