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Borrowing Arrangements (Components Of Long-Term Debt) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Sep. 30, 2022
Deferred financing costs	$ (4.2)	$ (4.7)
Current portion of long-term debt	(0.9)	(0.8)
Long-term debt	446.6	446.1
Unsecured Debt [Member]
5.5% Senior Notes	450.0	450.0
Other [Member]
Finance Lease, Liability	$ 1.7	$ 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.

+ References

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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- Definition

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

+ References

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Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

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