Derivatives and Hedging Activities - Interest Rate Contracts (Details) - Interest Rate Swaps - Cash flow hedges - Designated as Hedging Instrument - USD ($) $ in Thousands |
9 Months Ended | 12 Months Ended |
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Jun. 30, 2025 |
Sep. 30, 2024 |
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| Derivative Instruments and Hedging Activities Disclosures [Line Items] | ||
| Notional amount | $ 225,000 | $ 175,000 |
| Weighted-average maturity period (years) | 2 years 10 months 24 days | 3 years 2 months 12 days |
| Weighted-average received rate | 4.33% | 4.85% |
| Weighted-average pay rate | 3.80% | 3.83% |
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- Definition Average fixed interest rate related to the group of interest rate derivatives. No definition available.
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- Definition Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Nominal or face amount used to calculate payment on derivative. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Variable interest rate in effect as of the balance sheet date related to the interest rate derivative. No definition available.
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