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EMPLOYEE BENEFIT PLANS - Schedule of weighted average assumptions used in determining benefit obligations (Details)	Sep. 30, 2025	Sep. 30, 2024
Defined Benefit Plan Disclosure [Line Items]
Weighted average discount rate	5.60%
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Weighted average discount rate	5.09%	4.76%
Supplemental Employee Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Weighted average discount rate	4.52%	4.46%

X

- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

+ References

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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.

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