Restructuring Charges (Schedule of Charges Related to Restructuring Activities) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Sep. 30, 2023
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 1.3	$ 1.3	$ 6.3	$ 4.1
Other Restructuring Costs	1.9	1.7	6.6	4.7
Restructuring and related costs	3.2	3.1	13.2	9.1
Restructuring Reserve	1.8		1.8		$ 4.6
Asset Impairment and Accelerated Depreciation	0.0	0.1	0.3	0.3
Restructuring Charges, including amounts included in Cost of Products Sold		0.0		0.2
Restructuring Charges, Including Amounts in Selling, General and Administrative Expenses				8.9
Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Charges, Including Amounts in Selling, General and Administrative Expenses	$ 0.1	$ 0.1	$ 0.1	$ 0.2