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DERIVATIVE INSTRUMENTS - CREDIT RISK EXPOSURE (Details) $ in Thousands | 9 Months Ended
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Jun. 30, 2025 USD ($)
Credit Risk Exposure [Line Items] |
Gross Credit Exposure | $ 155,142
Investment grade |
Credit Risk Exposure [Line Items] |
Gross Credit Exposure | 108,891
Noninvestment grade |
Credit Risk Exposure [Line Items] |
Gross Credit Exposure | 10,281
Internally rated investment grade |
Credit Risk Exposure [Line Items] |
Gross Credit Exposure | 14,756
Internally rated noninvestment grade |
Credit Risk Exposure [Line Items] |
Gross Credit Exposure | $ 21,214

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