Benefit Plans - Benefit Plans (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 [Member] | ||||
| Benefit Plans [Abstract] | ||||
| Service cost | $ 0 | $ 0 | $ 0 | $ 0 |
| Interest cost | 293 | 304 | 579 | 593 |
| Expected return on plan assets | (951) | (960) | (1,903) | (1,723) |
| Amortization of net actuarial gain | (381) | (461) | (730) | (482) |
| Amortization of prior service cost | 0 | 0 | 0 | 0 |
| Net periodic benefit | (1,039) | (1,117) | (2,054) | (1,612) |
| Other Postretirement Benefits [Member] | ||||
| Benefit Plans [Abstract] | ||||
| Service cost | 5 | 4 | 10 | 9 |
| Interest cost | 90 | 87 | 180 | 173 |
| Expected return on plan assets | (428) | (381) | (856) | (762) |
| Amortization of net actuarial gain | (352) | (276) | (704) | (552) |
| Amortization of prior service cost | 3 | 4 | 6 | 7 |
| Net periodic benefit | $ (682) | $ (562) | $ (1,364) | $ (1,125) |
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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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