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v3.26.1

Benefit Plans (Tables) | 3 Months Ended
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Mar. 31, 2026
Retirement Benefits [Abstract] |
Components of net periodic benefit cost | Table 10.1 provides the components of net periodic benefit cost for our pension, supplemental executive retirement and other postretirement benefit plans for the three months ended March 31, 2026 and 2025.
Components of Net Periodic Benefit Cost
Table | 10.1 |  |  |  |  |  |  |  |
|  | Three Months Ended March 31,
|  | Pension and Supplemental Executive Retirement Plans |  | Other Postretirement Benefit Plans
(In thousands) |  | 2026 |  | 2025 |  | 2026 |  | 2025
Company service cost (1) |  | $ | 500 |  |  | $ | — |  |  | $ | 209 |  |  | $ | 234 |
Interest cost |  | 3,013 |  |  | 3,299 |  |  | 283 |  |  | 311 |
Expected return on plan assets |  | (3,078) |  |  | (3,442) |  |  | (3,394) |  |  | (2,911) |
Amortization of: |  |  |  |  |  |  |  |
Net actuarial losses (gains) |  | 947 |  |  | 546 |  |  | (961) |  |  | (692) |
Prior service cost (credit) |  | 86 |  |  | 86 |  |  | 117 |  |  | 118 |
Cost of settlements and curtailments |  | — |  |  | — |  |  | — |  |  | — |
Net periodic benefit cost (benefit) |  | $ | 1,468 |  |  | $ | 489 |  |  | $ | (3,746) |  |  | $ | (2,940) |
(1)Effective January 1, 2026, company service cost includes expected administrative expenses of the defined benefit pension plan.

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (q) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-5 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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