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Borrowing Arrangements (Components Of Long-Term Debt) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Sep. 30, 2022
Debt instrument	$ 451.4	$ 451.6
Deferred financing costs	(4.4)	(4.7)
Current portion of long-term debt	(0.9)	(0.8)
Long-term debt	446.1	446.1
Unsecured Debt [Member]
5.5% Senior Notes	450.0	450.0
Other [Member]
Debt instrument	$ 1.4	$ 1.6

X

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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