PENSION AND OTHER POSTRETIREMENT PLANS - Changes in Fair Value of Level 3 Plan Assets (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Sep. 30, 2022 |
Sep. 30, 2021 |
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| Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward] | ||
| Fair value, beginning of year | $ 208,344 | |
| Fair value, end of year | $ 208,344 | |
| Level 3 | ||
| Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward] | ||
| Fair value, beginning of year | 14,311 | |
| Fair value, end of year | 14,311 | |
| Pension | ||
| Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward] | ||
| Fair value, beginning of year | 208,344 | 168,134 |
| Fair value, end of year | 0 | 208,344 |
| Pension | Level 3 | ||
| Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward] | ||
| Fair value, beginning of year | 14,311 | 15,273 |
| Acquisitions | 0 | 236 |
| Dispositions | (14,700) | (2,144) |
| Realized Gains | 139 | 272 |
| Unrealized Gains (Losses) | 250 | 674 |
| Fair value, end of year | $ 0 | $ 14,311 |
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- Definition Amount, measured using unobservable inputs, of increase (decrease) in plan assets of defined benefit plan from actual return (loss) on assets sold. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, measured using unobservable inputs, of increase (decrease) in plan assets of defined benefit plan from actual return (loss) on assets still held. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in plan assets of defined benefit plan from business combination. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of decrease in plan assets of defined benefit plan from disposal or classification as held-for-sale. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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