Benefit Plans - Schedule of Accumulated and Projected Benefit Obligations (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Pension Benefits
Plans with projected benefit obligation in excess of plan assets:
Projected benefit obligation	$ 43,001	$ 217,358
Fair value of plan assets	0	169,077
Plans with accumulated benefit obligation in excess of plan assets:
Accumulated benefit obligation	39,652	35,813
Fair value of plan assets	0	0
Other Postretirement Benefits
Plans with accumulated benefit obligation in excess of plan assets:
Accumulated benefit obligation	15,580	16,411
Fair value of plan assets	$ 9,401	$ 7,853

Amount of plan asset for defined benefit pension plan with projected benefit obligation in excess of plan assets.

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- Definition

Amount of projected benefit obligation for defined benefit pension plan with projected benefit obligation in excess of plan assets.

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Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480482/715-20-55-17

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Paragraph 3
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.

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