Restructuring Charges (Narrative) (Details) - USD ($)	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs	$ 36,000,000.0	$ 17,100,000	$ 16,200,000
Restructuring and Related Cost, Expected Cost	11
Consolidation of Mexico Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs	15,600,000
Restructuring and Related Cost, Expected Cost	$ 18