Financial Instruments and Risk Management (Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis) (Details) - Recurring fair value measurement - Level 2 - USD ($) $ in Millions |
Mar. 31, 2026 |
Sep. 30, 2025 |
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| Derivative [Line Items] | ||
| Deferred compensation liability | $ (20.0) | $ (20.7) |
| Derivatives - foreign currency contracts asset (liability) | 2.6 | (1.4) |
| Net liabilities at estimated fair value | $ (17.4) | $ (22.1) |
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- Definition Assets (Liabilities), at Fair Value, Net No definition available.
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- Definition Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date. No definition available.
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- Definition Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. 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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