Benefit Plans - Benefit Plans (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Pension Benefits [Member] | ||||
| Benefit Plans [Abstract] | ||||
| Service cost | $ 0 | $ 0 | $ 0 | $ 0 |
| Interest cost | 289 | 297 | 868 | 890 |
| Expected return on plan assets | (952) | (862) | (2,855) | (2,585) |
| Amortization of net actuarial gain | (365) | (241) | (1,095) | (723) |
| Amortization of prior service cost | 0 | 0 | 0 | 0 |
| Net periodic benefit | (1,028) | (806) | (3,082) | (2,418) |
| Other Postretirement Benefits [Member] | ||||
| Benefit Plans [Abstract] | ||||
| Service cost | 5 | 4 | 15 | 13 |
| Interest cost | 91 | 87 | 271 | 260 |
| Expected return on plan assets | (429) | (380) | (1,285) | (1,142) |
| Amortization of net actuarial gain | (353) | (276) | (1,057) | (828) |
| Amortization of prior service cost | 4 | 2 | 10 | 9 |
| Net periodic benefit | $ (682) | $ (563) | $ (2,046) | $ (1,688) |
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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 prior service cost (credit) 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 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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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- 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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- Details
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