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v3.23.1

Credit Facilities, Short-term Borrowings and Long-term Debt (Narrative) (Details) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 USD ($) | Sep. 30, 2022 USD ($)
Debt Instrument [Line Items] |  |
Short-term debt | $ 130,500 | $ 66,800
Revolving Credit Facility [Member] |  |
Debt Instrument [Line Items] |  |
Line of credit facility, maximum borrowing capacity | 1,000,000 |
Line of credit facility, maximum borrowing capacity extension | 1,500,000 |
Principal amount borrowing outstanding | $ 130,500 | $ 66,800
Effective interest rate | 0.0588 | 0.0424
Foreign Lines of Credit and Overdraft Facilities [Member] |  |
Debt Instrument [Line Items] |  |
Short-term debt | $ 0 | $ 0
Second Amended And Restated Revolving Credit Agreement [Member] |  |
Debt Instrument [Line Items] |  |
Debt issuance costs | 2,236 |
Deferred debt issuance costs remaining | 1,046 |
Revolving Credit Agreement [Member] |  |
Debt Instrument [Line Items] |  |
Balance of unamortized debt issuance costs, line of credit | $ 1,313 | $ 1,046
Minimum [Member] | SOFR [Member] | Revolving Credit Facility [Member] |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 0.875% |
Maximum [Member] | SOFR [Member] | Revolving Credit Facility [Member] |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 1.75% |

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- Definition Amount, after accumulated amortization, of debt issuance costs related to line of credit arrangements. 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 835 -SubTopic 30 -Section S45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=68176171&loc=SL68176184-208336 + Details
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