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Pension and Other Postretirement Employee Benefits (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Defined Benefit Plan Disclosure [Line Items] |  |
Funding of pension and other postretirement benefit plans | $ 1,580 | $ 914
Non-Qualified Plan [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Funding of pension and other postretirement benefit plans | 900 | 900
Qualified Plan [Member] | Pension Plans [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Contributions to pension benefit plan | $ 700 | $ 0

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- Definition Amount of cash outflow for pension and other postretirement benefits. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (g) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-25 + Details
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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (g) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-25 + Details
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