Pension and Other Post-Retirement Benefit Plans - Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Pension
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 1,310	$ 1,304
Estimated future employer contributions	1,400
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2024	33,392
2025	35,704
2026	37,266
2027	38,868
2028	40,026
Years 2029 to 2033	199,310
Post-retirement Healthcare Plans
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	306	$ 308
Estimated future employer contributions	300
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2024	319
2025	337
2026	347
2027	348
2028	279
Years 2029 to 2033	$ 691

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth 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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Amount of contribution expected to be received by defined benefit plan from employer in remainder of current fiscal year. Excludes contribution previously paid by employer in current fiscal year.

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-Topic 715
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