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DERIVATIVE INSTRUMENTS - CREDIT RISK EXPOSURE (Details) $ in Thousands	9 Months Ended
	Jun. 30, 2021 USD ($)
Credit Risk Exposure [Line Items]
Gross Credit Exposure	$ 201,801
Investment grade
Credit Risk Exposure [Line Items]
Gross Credit Exposure	135,244
Noninvestment grade
Credit Risk Exposure [Line Items]
Gross Credit Exposure	12,708
Internally rated investment grade
Credit Risk Exposure [Line Items]
Gross Credit Exposure	22,158
Internally rated noninvestment grade
Credit Risk Exposure [Line Items]
Gross Credit Exposure	$ 31,691

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611

+ 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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