Retirement Plans (Schedule of Expected Future Benefit Payments) (Details) $ in Millions	Sep. 30, 2025 USD ($)
Pension plan
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
Fiscal 2026	$ 33.8
Fiscal 2027	33.7
Fiscal 2028	33.6
Fiscal 2029	32.3
Fiscal 2030	31.9
Fiscal 2031 to 2035	146.0
Postretirement plan
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
Fiscal 2026	0.2
Fiscal 2027	0.2
Fiscal 2028	0.2
Fiscal 2029	0.3
Fiscal 2030	0.3
Fiscal 2031 to 2035	$ 1.4

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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 5
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-5

Reference 2: 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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Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

+ References

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- Definition

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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