Property, Plant, and Equipment (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Sep. 30, 2025 |
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| Property, Plant and Equipment [Line Items] | |||||
| Land | $ 16.5 | $ 16.5 | $ 16.7 | ||
| Buildings and Improvements, Gross | 112.8 | 112.8 | 114.8 | ||
| Machinery and Equipment, Gross | 965.7 | 965.7 | 984.4 | ||
| Capitalized Computer Software, Gross | 68.5 | 68.5 | 68.2 | ||
| Construction in Progress, Gross | 66.4 | 66.4 | 62.1 | ||
| Property, Plant and Equipment, Gross | 1,229.9 | 1,229.9 | 1,246.2 | ||
| Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment | 937.2 | 937.2 | 951.2 | ||
| Property, plant and equipment, net | 292.7 | 292.7 | $ 295.0 | ||
| Software amortization | 0.8 | $ 0.9 | 2.6 | $ 2.9 | |
| Depreciation | $ 11.5 | $ 11.2 | $ 36.0 | $ 32.8 | |
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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of expense for amortization of capitalized computer software costs. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before accumulated depletion of real estate held for productive use, excluding land held for sale. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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/disclosureRef
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| X | ||||||||||
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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