Borrowing Arrangements (Components Of Long-Term Debt) (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Sep. 30, 2025 |
May 28, 2021 |
|---|---|---|---|
| Long-term Debt, Gross | $ 454.9 | $ 454.1 | |
| Deferred financing costs | 2.0 | 2.5 | |
| Current portion of long-term debt | 1.6 | 1.2 | |
| Long-term debt | 451.3 | 450.4 | |
| Unsecured Debt [Member] | |||
| 4.0% Senior Notes | 450.0 | 450.0 | |
| Long-term Debt, Gross | $ 450.0 | ||
| Other [Member] | |||
| Finance Lease, Liability | $ 4.9 | $ 4.1 |
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- 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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as current. Excludes lease obligation. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition 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). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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