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v3.21.1

Post Retirement Benefits (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Pension, health and life insurance expense: |  |
Multi-employer plan | $ 189 | $ 246
Defined contribution plan | 302 | 293
Total pension expense | 491 | 539
Interest cost | 41 | 59
Amortization of prior service costs | (124) | (124)
Amortization of net loss | 43 | 45
Net periodic benefit cost | (40) | (20)
Total post retirement benefits expense | 451 | $ 519
Pension Plan |  |
Pension, health and life insurance expense: |  |
Payments made to pension plans | 201 |
Pension plan payments expected to be made in fiscal year | 1,599 |
Pension plan payments accrued | 774 |
Other Postretirement Benefits Plan |  |
Pension, health and life insurance expense: |  |
Payments for post retirement healthcare and life insurance | 101 |
Pension plan payments expected to be made in fiscal year | 1,185 |
Pension plan payments accrued | $ 1,185 |

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