Restructuring Charges (Schedule of Charges Related to Restructuring Activities) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Sep. 30, 2024
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 4.2	$ 6.8
Restructuring and related costs	4.2	6.8
Restructuring Reserve	17.6
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	17.6		$ 20.7
Restructuring charges, charge to income	0.2
Utilized - Cash Payments	(1.4)
Utilized - Non-Cash	(1.9)
Asset Impairment and Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0
Restructuring charges, charge to income	1.0
Utilized - Non-Cash	(1.0)
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0		0.7
Restructuring charges, charge to income	3.0
Utilized - Cash Payments	(2.3)
Utilized - Non-Cash	(1.4)
Operating Model Redesign
Restructuring Cost and Reserve [Line Items]
Severance Costs	0.5	3.9
Other Restructuring Costs	0.9	2.8
Restructuring charges	2.4	6.8
Restructuring Reserve	2.9
Asset Impairment and Accelerated Depreciation	1.0	$ 0.1
Operating Model Redesign | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	2.9		5.1
Restructuring charges, charge to income	0.5
Utilized - Cash Payments	(1.4)
Utilized - Non-Cash	(1.3)
Operating Model Redesign | Asset Impairment and Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges, charge to income	1.0
Utilized - Non-Cash	(1.0)
Operating Model Redesign | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0		0.7
Restructuring charges, charge to income	0.9
Utilized - Cash Payments	(0.9)
Utilized - Non-Cash	(0.7)
Consolidation of Mexico Facilities
Restructuring Cost and Reserve [Line Items]
Severance Costs	(0.3)
Other Restructuring Costs	2.1
Restructuring charges	1.8
Restructuring Reserve	14.7
Consolidation of Mexico Facilities | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	14.7		15.6
Restructuring charges, charge to income	(0.3)
Utilized - Cash Payments	0.0
Utilized - Non-Cash	(0.6)
Consolidation of Mexico Facilities | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0		$ 0.0
Restructuring charges, charge to income	2.1
Utilized - Cash Payments	(1.4)
Utilized - Non-Cash	$ (0.7)