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Borrowing Arrangements (Components Of Long-Term Debt) (Details) - USD ($) $ in Millions	Jun. 30, 2023	Sep. 30, 2022	May 28, 2021
Long-term Debt, Gross	$ 451.6	$ 451.6
Deferred financing costs	4.1	4.7
Current portion of long-term debt	0.8	0.8
Long-term debt	446.7	446.1
Unsecured Debt [Member]
5.5% Senior Notes	450.0	450.0
Long-term Debt, Gross			$ 450.0
Other [Member]
Finance Lease, Liability	$ 1.6	$ 1.6

X

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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

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

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

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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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