EMPLOYEE BENEFIT PLANS - AMOUNTS EXPECTED TO BE RECOGNIZED IN NET PERIODIC BENEFIT COST (Details) $ in Thousands	12 Months Ended
Sep. 30, 2022 USD ($)
Pension
Regulatory Assets
Net actuarial (gain) loss	$ (36)
Total	(36)
Accumulated Other Comprehensive Income (Loss)
Net actuarial (gain) loss	217
Total	217
OPEB
Regulatory Assets
Net actuarial (gain) loss	0
Total	0
Accumulated Other Comprehensive Income (Loss)
Net actuarial (gain) loss	0
Total	$ 0

Defined Benefit Plan Amortization Of Net Gains Losses Regulated Assets

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- Definition

Defined Benefit Plan Amounts That Will Be Amortized From Regulatory Assets In Next Fiscal Year

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- Definition

Defined Benefit Plan, Amount to be Amortized from Regulatory Assets [Abstract]

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- Definition

Amount of cost (credit) included in accumulated other comprehensive (income) loss expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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Amount included in accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan expected to be recognized in net periodic benefit (cost) credit for fiscal year following most recent annual statement of financial position.

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