Employee and Retiree Benefit Plans - Schedule of Components of Net Periodic Benefit Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
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| Pension Benefits | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Service cost | $ 1,865 | $ 1,683 |
| Interest cost | 7,752 | 8,398 |
| Expected return on plan assets | (8,792) | (8,871) |
| Estimated defined contribution provision | 70 | 60 |
| Amortization of prior service cost (credit) | 432 | 491 |
| Recognized actuarial (gain) loss | 1,644 | 1,891 |
| Total net periodic benefit cost (credit) | 2,971 | 3,652 |
| Other Postretirement Benefits | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Service cost | 102 | 84 |
| Interest cost | 750 | 708 |
| Expected return on plan assets | 0 | 0 |
| Estimated defined contribution provision | 0 | 0 |
| Amortization of prior service cost (credit) | (133) | (133) |
| Recognized actuarial (gain) loss | (387) | (1,056) |
| Total net periodic benefit cost (credit) | $ 332 | $ (397) |
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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 increase (decrease) in benefit obligation of defined benefit plan from change in terms of existing plan or initiation of new plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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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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- Details
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