Accounts Receivable Facility (Details) ¥ in Millions, $ in Millions	12 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 JPY (¥)	Feb. 07, 2022 USD ($)
Transfer of Financial Assets Accounted for as Sales [Line Items]
Transfer of accounts receivable, max per agreement		$ 150.0		$ 180.0
JapanFactoringAgreementmax	$ 20.0		¥ 3,000.0
Accounts Receivable Sales Agreement
Transfer of Financial Assets Accounted for as Sales [Line Items]
Transfer of accounts receivable, sold to date	1,162.7	1,046.8
Transfer of accounts receivable, sales amount derecognized	82.1	78.7
Loss on sale of accounts receivable	$ 6.2	$ 2.0