POST EMPLOYMENT BENEFITS - Pension Funding and Payments and Defined Contribution Plans (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2022	Sep. 30, 2021
Defined Contribution Plan Disclosure [Line Items]
Employer contributions	$ 1,059
Expected contribution to pension plans in the next twelve months	1,271
Projected Benefit Payments
2023	632
2024	717
2025	603
2026	718
2027	898
Thereafter	3,780
Total	7,348
Pension Plan
Defined Contribution Plan Disclosure [Line Items]
Defined contribution benefit expense	$ 3,312	$ 852

Amount of benefit for defined benefit plan expected to be paid by the entity in aggregate.

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Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

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Amount of cost for defined contribution plan.

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