Pension and Other Postretirement Benefit Plans - Benefit Payments Expected to be Paid (Details) $ in Thousands	Dec. 31, 2024 USD ($)
Retirement Plan [Member]
2025	$ 1,283
2026	1,274
2027	1,275
2028	1,269
2029	1,265
2030 - 2034	6,081
Other Postretirement Benefits Plan [Member]
2025	302
2026	374
2027	446
2028	471
2029	488
2030 - 2034	3,292
Directors' Plan [Member]
2025	96
2026	96
2027	96
2028	96
2029	96
2030 - 2034	$ 684

Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

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