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v3.20.1

Borrowing Arrangements (Components Of Long-Term Debt) (Details) - USD ($) $ in Millions | Mar. 31, 2020 | Sep. 30, 2019
--- | --- | ---
Debt instrument | $ 452.6 | $ 452.1
Deferred financing costs | 5.3 | 5.8
Current portion of long-term debt | 1.1 | 0.9
Long-term debt | 446.2 | 445.4
Domestic Line of Credit [Member] |  |
Debt instrument | 0.0 | 0.0
Unsecured Debt [Member] |  |
5.5% Senior Notes | 450.0 | 450.0
Other [Member] |  |
Debt instrument | $ 2.6 | $ 2.1

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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399 + Details
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