DERIVATIVE INSTRUMENTS - CREDIT RISK EXPOSURE (Details) $ in Thousands	9 Months Ended
Jun. 30, 2023 USD ($)
Credit Risk Exposure [Line Items]
Gross Credit Exposure	$ 145,872
Investment grade
Credit Risk Exposure [Line Items]
Gross Credit Exposure	104,901
Noninvestment grade
Credit Risk Exposure [Line Items]
Gross Credit Exposure	3,303
Internally rated investment grade
Credit Risk Exposure [Line Items]
Gross Credit Exposure	16,129
Internally rated noninvestment grade
Credit Risk Exposure [Line Items]
Gross Credit Exposure	$ 21,539

Maximum amount of loss due to credit risk that, based on the gross fair value of the financial instrument, the entity would incur if parties to the financial instruments that make up the concentration failed completely to perform according to the terms of the contracts and the collateral or other security, if any, for the amount due proved to be of no value to the entity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-21

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