Employee Benefit Plans and Other Postretirement Benefits - Schedule of Expected Benefit Payments for Next Five Years and Thereafter (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Pension Benefits
Defined Benefit Plan, Expected Future Benefit Payment
2024	$ 115,265
2025	114,856
2026	116,507
2027	116,698
2028	116,234
2029-2033	581,079
SERPA Benefits
Defined Benefit Plan, Expected Future Benefit Payment
2024	1,159
2025	1,119
2026	1,070
2027	945
2028	854
2029-2033	3,594
Postretirement Healthcare Benefits
Defined Benefit Plan, Expected Future Benefit Payment
2024	17,179
2025	18,050
2026	18,830
2027	19,442
2028	19,930
2029-2033	$ 100,332

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- Definition

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

+ References

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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