Financial Instruments and Risk Management (Schedule of Fair Values of Derivative Instruments) (Details) - FX contract - USD ($) $ in Millions		Jun. 30, 2024	Sep. 30, 2023
Not designated as hedge
Derivatives, Fair Value [Line Items]
Estimated fair value of derivatives	[1]	$ 0.2	$ 0.9
Cash flow hedge | Designated as hedge
Derivatives, Fair Value [Line Items]
Estimated fair value of derivatives	[1]	$ 4.3	$ 4.4

[1] erivative assets are presented in Other current assets or Other assets. Derivative liabilities are presented in Other current liabilities or Other liabilities.