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Post Retirement Benefits (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Pension, health and life insurance expense: |  |
Multi-employer plan | $ 214 | $ 238
Defined contribution plan | 506 | 528
Total pension expense | 720 | 766
Interest cost | 23 | 66
Amortization of prior service credits | (124) | (124)
Amortization of net loss | (37) | 6
Net periodic benefit credit | (138) | (52)
Total post-retirement benefits expense | 582 | $ 714
Pension Plan |  |
Pension, health and life insurance expense: |  |
Payments made to pension plans | 550 |
Pension plan payments expected to be made in fiscal year | 1,803 |
Pension plan payments accrued | 920 |
Other Postretirement Benefits Plan |  |
Pension, health and life insurance expense: |  |
Payments for post retirement healthcare and life insurance | 131 |
Pension plan payments expected to be made in fiscal year | 167 |
Pension plan payments accrued | $ 167 |

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