Retirement Plans (Schedule of Expected Future Benefit Payments) (Details) $ in Millions	Sep. 30, 2023 USD ($)
Pension plan
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
Fiscal 2024	$ 33.3
Fiscal 2025	34.0
Fiscal 2026	33.6
Fiscal 2027	32.8
Fiscal 2028	32.6
Fiscal 2029 to 2032	147.0
Postretirement plan
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
Fiscal 2024	0.2
Fiscal 2025	0.2
Fiscal 2026	0.2
Fiscal 2027	0.2
Fiscal 2028	0.2
Fiscal 2029 to 2032	$ 1.3

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- Definition

Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

+ Details

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- Definition

Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

+ References

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- Definition

Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

+ References

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- Definition

Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

+ References

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Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

+ References

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

+ References

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