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Retirement Plans And Postretirement Benefits | 9 Months Ended
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Sep. 30, 2020
Retirement Benefits [Abstract] |
Retirement Plans And Postretirement Benefits | Retirement Plans and Postretirement Benefits The components of our consolidated net pension costs are set forth in the following table:
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
| 2020 |  | 2019 |  | 2020 |  | 2019
| (Dollars in thousands)
Service cost | $ | 623 |  |  | $ | 574 |  |  | $ | 1,863 |  |  | $ | 1,724 |
Interest cost | 1,033 |  |  | 1,316 |  |  | 3,098 |  |  | 3,948 |
Expected return on plan assets | (1,283) |  |  | (1,339) |  |  | (3,849) |  |  | (4,015) |
Net cost | $ | 373 |  |  | $ | 551 |  |  | $ | 1,112 |  |  | $ | 1,657 |
The components of our consolidated net postretirement costs are set forth in the following table:
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
| 2020 |  | 2019 |  | 2020 |  | 2019
| (Dollars in thousands)
Interest cost | $ | 180 |  |  | $ | 236 |  |  | 545 |  |  | 717 |
Net cost | $ | 180 |  |  | $ | 236 |  |  | $ | 545 |  |  | $ | 717 |

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