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Pensions | 9 Months Ended
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Sep. 30, 2022
Pensions [Abstract] |
Pensions | 11. Pensions Components of Net Periodic Pension Cost
|  | Three Months Ended September 30 |  |  | Nine Months Ended September 30 |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Service cost |  | $ | 257 |  |  | $ | 271 |  |  | $ | 769 |  |  | $ | 814 |
Interest cost |  |  | 334 |  |  |  | 302 |  |  |  | 1,002 |  |  |  | 906 |
Expected return on plan assets |  |  | (1,054 | ) |  |  | (913 | ) |  |  | (3,163 | ) |  |  | (2,739 | )
Amortization of actuarial loss |  |  | – |  |  |  | 121 |  |  |  | – |  |  |  | 363 |
Amortization of prior service cost |  |  | (4 | ) |  |  | (3 | ) |  |  | (10 | ) |  |  | (9 | )
Rate-regulated adjustment |  |  | 1,042 |  |  |  | 797 |  |  |  | 3,127 |  |  |  | 2,390 |
Net periodic pension expense |  | $ | 575 |  |  | $ | 575 |  |  | $ | 1,725 |  |  | $ | 1,725 |
Pension service cost is recorded in operating expenses. All other components of net periodic pension cost are recorded as other pension costs in other income (expenses). Employer Contributions The Company previously disclosed in its financial statements for the year ended December 31, 2021 that it expected to contribute $2,300 to its pension plans in 2022. For the nine months ended September 30, 2022, contributions of $1,725 have been made. The Company expects to contribute the remaining $575 during the final quarter of 2022.

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