OTHER INCOME (EXPENSE) (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Other Income and Expenses [Abstract] | ||||
| Other income (expense) | $ (2,576) | $ 272 | $ (5,192) | $ 858 |
| Net currency exchange gains | (71) | 326 | 213 | 50 |
| Net periodic benefit plan expense | 1,954 | 91 | 5,867 | 272 |
| Net losses on investments | (564) | (424) | (571) | (370) |
| Royalty income | 471 | $ 501 | 1,434 | $ 1,647 |
| Charges associated with establishment of new retiree medical plan | $ 1,608 | $ 4,826 | ||
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- Definition Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to New Plans No definition available.
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- Definition Amount, before tax, of realized and unrealized gain (loss) from foreign currency transaction. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of expense (reversal of expense) for net periodic benefit cost components, excluding service cost component, of defined benefit plan. Amount includes, but is not limited to, interest cost, expected (return) loss on plan asset, amortization of prior service cost (credit), amortization of (gain) loss, amortization of transition (asset) obligation, settlement (gain) loss, curtailment (gain) loss and certain termination benefits. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Ancillary revenue earned during the period from the consideration paid to the entity for the use of its rights and property by another party. Examples include licensing the use of copyrighted materials and leasing the extraction of natural resources. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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