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v3.24.3

Pension and Other Postretirement Benefits | 9 Months Ended
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Sep. 30, 2024
Retirement Benefits [Abstract] |
Pension and Other Postretirement Benefits | Pension and Other Postretirement Benefits Components of net periodic benefit cost (credit) were as follows:
|  | Pension Benefits |  | Postretirement Benefits
|  | Three months ended September 30,
(in thousands) |  | 2024 |  | 2023 |  | 2024 |  | 2023
Components of net periodic benefit cost (credit) |  |  |  |  |  |  |  |
Service cost |  | $ | 1,327 |  |  | $ | 1,411 |  |  | $ | 84 |  |  | $ | 107 |
Interest cost |  | 2,645 |  |  | 2,832 |  |  | 129 |  |  | 166 |
Expected return on plan assets |  | (1,838) |  |  | (1,966) |  |  | — |  |  | — |
Settlements |  | 142 |  |  | — |  |  | — |  |  | — |
Amortization of net loss (gain) |  | 60 |  |  | 25 |  |  | (252) |  |  | (223) |
Amortization of prior service cost (credit) |  | 24 |  |  | 45 |  |  | (35) |  |  | (35) |
Net periodic benefit cost (credit) |  | $ | 2,360 |  |  | $ | 2,347 |  |  | $ | (74) |  |  | $ | 15 |
|  | Pension Benefits |  | Postretirement Benefits
|  | Nine months ended September 30,
(in thousands) |  | 2024 |  | 2023 |  | 2024 |  | 2023
Components of net periodic benefit cost (credit) |  |  |  |  |  |  |  |
Service cost |  | $ | 3,958 |  |  | $ | 4,261 |  |  | $ | 250 |  |  | $ | 322 |
Interest cost |  | 8,033 |  |  | 8,491 |  |  | 389 |  |  | 497 |
Expected return on plan assets |  | (5,510) |  |  | (5,894) |  |  | — |  |  | — |
Settlements |  | 142 |  |  | (27) |  |  | — |  |  | — |
Amortization of net loss (gain) |  | 177 |  |  | 70 |  |  | (760) |  |  | (670) |
Amortization of prior service cost (credit) |  | 70 |  |  | 137 |  |  | (103) |  |  | (103) |
Net periodic benefit cost (credit) |  | $ | 6,870 |  |  | $ | 7,038 |  |  | $ | (224) |  |  | $ | 46 |
The non-service cost components of net periodic benefit cost (credit) are included in other expense, net in the unaudited condensed consolidated statements of operations.

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