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Post Retirement Benefits - Schedule of Post Retirement Benefits Expense (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Pension expense: |  |  |
Multi-employer plan | $ 794 | $ 981 | $ 1,137
Defined contribution plans | 1,792 | 1,873 | 1,482
Total pension expense | 2,586 | 2,854 | 2,619
Health and life insurance: |  |  |
Interest cost | 93 | 254 | 198
Amortization of prior service credits | (496) | (496) | (496)
Amortization of net loss (gain) | (190) | 22 | 174
Net periodic benefit credit | (593) | (220) | (124)
Total post retirement benefits expense | $ 1,993 | $ 2,634 | $ 2,495

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