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v3.22.2.2

Investment Securities: Schedule of significant inputs utilized to measure management's estimate of the credit loss component on OTTI securities (Details) | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020
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Minimum |  |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |  |
OTTI significant inputs - Constant prepayment rate | 6.00% | 6.00% | 6.00%
OTTI significant inputs - Collateral default rate | 0.58% | 1.47% | 2.17%
OTTI significant inputs - Loss severity rate | 0.00% | 0.00% | 0.00%
Maximum |  |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |  |
OTTI significant inputs - Constant prepayment rate | 15.00% | 15.00% | 15.00%
OTTI significant inputs - Collateral default rate | 25.64% | 17.55% | 27.39%
OTTI significant inputs - Loss severity rate | 8.19% | 12.96% | 11.27%
Weighted Average |  |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |  |
OTTI significant inputs - Constant prepayment rate | 12.98% | 10.20% | 8.97%
OTTI significant inputs - Collateral default rate | 9.96% | 12.19% | 14.37%
OTTI significant inputs - Loss severity rate | 3.36% | 4.55% | 2.87%

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- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
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- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
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- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
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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. + References No definition available. + Details
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- Details
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