RETIREMENT PLANS - Net Periodic Pension Cost (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Pension benefits | ||||
| Components of the plan's net periodic pension cost | ||||
| Service cost | $ 17 | $ 20 | $ 34 | $ 40 |
| Interest cost | 791 | 795 | 1,582 | 1,591 |
| Expected return on plan assets | (626) | (749) | (1,252) | (1,500) |
| Amortization of unrecognized actuarial gain | (122) | (44) | (244) | (87) |
| Net periodic pension expense | 60 | 22 | 120 | 44 |
| Postretirement benefits | ||||
| Components of the plan's net periodic pension cost | ||||
| Service cost | 16 | 19 | 31 | 38 |
| Interest cost | 49 | 49 | 97 | 98 |
| Amortization of unrecognized actuarial gain | (16) | (14) | (33) | (27) |
| Net periodic pension expense | $ 49 | $ 54 | $ 95 | $ 109 |
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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