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Benefit Plans - Contributions to Pension and Other Postretirement Benefit Plans (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Jul. 01, 2019
--- | --- | --- | ---
Qualified Plan [Member] |  |  |
Benefit Plans |  |  |
Benefit accruals for the company's employees | $ 0 |  |
Pension Plan [Member] |  |  |
Benefit Plans |  |  |
Benefit accruals for the company's employees | (69,245) | $ (75,968) |
Pension Plan [Member] | Qualified Plan [Member] |  |  |
Benefit Plans |  |  |
Expected contributions in 2024 | 0 |  |
Pension Plan [Member] | Nonqualified Plan [Member] |  |  |
Benefit Plans |  |  |
Expected contributions in 2024 | 200 |  |
SERP and Directors' Plan | Nonqualified Plan [Member] |  |  |
Benefit Plans |  |  |
Benefit accruals for the company's employees |  |  | $ 0
Other Postretirement Benefits Plan [Member] | Nonqualified Plan [Member] |  |  |
Benefit Plans |  |  |
Expected contributions in 2024 | $ 1,300 |  |

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- Definition Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-18 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480535/715-20-45-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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