Pension and Other Post-Retirement Benefits The following table sets forth the net periodic costs for the defined benefit pension plans and post-retirement healthcare plans for the periods indicated (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | Quarter ended September 30, | | Pension benefits | | Other post-retirement benefits | | 2023 | | 2022 | | 2023 | | 2022 | Service cost | $ | 1,560 | | | 2,599 | | | — | | | — | | Interest cost | 2,245 | | | 1,671 | | | 7 | | | 10 | | Expected return on plan assets | (3,479) | | | (3,864) | | | — | | | — | | Amortization of prior service cost | (564) | | | (564) | | | — | | | — | | Amortization of the net loss | 20 | | | 381 | | | 10 | | | 2 | | Net periodic cost | $ | (218) | | | 223 | | | 17 | | | 12 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nine months ended September 30, | | | Pension benefits | | Other post-retirement benefits | | | 2023 | | 2022 | | 2023 | | 2022 | | Service cost | $ | 4,680 | | | 7,797 | | | — | | | — | | | Interest cost | 6,735 | | | 5,013 | | | 21 | | | 30 | | | Expected return on plan assets | (10,437) | | | (11,592) | | | — | | | — | | | Amortization of prior service cost | (1,692) | | | (1,692) | | | — | | | — | | | Amortization of the net loss | 60 | | | 1,143 | | | 30 | | | 6 | | | Net periodic cost | $ | (654) | | | 669 | | | 51 | | | 36 | |
Because of the current funding status, we do not anticipate a funding requirement during the year ending December 31, 2023.
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