Pensions (Details) - Pension Plans [Member] - USD ($) $ in Thousands |
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Dec. 31, 2025 |
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| Components of Net Benefit Pension Cost [Abstract] | |||
| Service cost | $ 130 | $ 133 | |
| Interest cost | 494 | 495 | |
| Expected return on plan assets | (815) | (767) | |
| Amortization of prior service cost | 0 | (3) | |
| Rate-regulated adjustment | 191 | 142 | |
| Net periodic benefit cost | 0 | $ 0 | |
| Employer Contributions [Abstract] | |||
| Estimated employer contributions in 2026 | $ 0 | ||
| Employer contributions made in 2026 | 0 | ||
| Estimated remaining employer contributions in 2026 | $ 0 | ||
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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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- References No definition available.
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- Definition Amount of contributions received and expected to be received by defined benefit plan from employer in current fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of contribution expected to be received by defined benefit plan from employer in remainder of current fiscal year. Excludes contribution previously paid by employer in current fiscal year. 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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- Definition Amount of cash outflow for pension benefit. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. Excludes other postretirement benefit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Change in the defined benefit plan regulatory asset from pension contribution greater (less) than net periodic benefit cost. No definition available.
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- Details
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