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Retirement Plans (Expected Benefit Payments) (Details) $ in Millions	Sep. 30, 2018 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Estimated benefit payments, CY plus 1	$ 31.2
Estimated benefit payments, CY plus 2	25.0
Estimated benefit payments, CY plus 3	24.8
Estimated benefit payments, CY plus 4	24.5
Estimated benefit payments, CY plus 5	24.2
Estimated benefit payments, CY plus 6 and up	$ 113.6

X

- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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- Definition

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

+ References

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-Publisher FASB
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Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year.

+ References

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-Publisher FASB
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Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
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-Paragraph 1
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Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.

+ References

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