Financial Instruments and Risk Management (Schedule of Fair Values of Derivative Instruments) (Details) - FX contract - USD ($) $ in Millions	Dec. 31, 2025	Sep. 30, 2025
Not designated as hedge
Derivatives, Fair Value [Line Items]
Estimated fair value of derivatives	$ 0.0	$ 0.1
Cash flow hedge \| Designated as hedge
Derivatives, Fair Value [Line Items]
Estimated fair value of derivatives	$ 0.8	$ (1.4)

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.

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