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Pension and Other Postretirement Employee Benefits | 9 Months Ended
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Sep. 30, 2021
General Discussion Of Pension And Other Postretirement Benefits [Abstract] |
Pension and Other Postretirement Employee Benefits | NO TE 11. PENSION AND OTHER POSTRETIREMENT EMPLOYEE BENEFITS The following table details the components of net periodic cost (benefit) of our pension plans and other postretirement employee benefits (OPEB):
|  | Three Months Ended September 30, |
|  | Pension |  |  | OPEB |
(in thousands) |  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Service cost |  | $ | 2,045 |  |  | $ | 2,233 |  |  | $ | 168 |  |  | $ | 127 |
Interest cost |  |  | 2,633 |  |  |  | 3,066 |  |  |  | 317 |  |  |  | 376 |
Expected return on plan assets |  |  | (3,525 | ) |  |  | (3,869 | ) |  |  | — |  |  |  | — |
Amortization of prior service cost (credit) |  |  | 21 |  |  |  | 29 |  |  |  | (298 | ) |  |  | (319 | )
Amortization of actuarial loss |  |  | 3,578 |  |  |  | 3,856 |  |  |  | 545 |  |  |  | 418 |
Total net periodic cost |  | $ | 4,752 |  |  | $ | 5,315 |  |  | $ | 732 |  |  | $ | 602 |
|  | Nine Months Ended September 30, |
|  | Pension |  |  | OPEB |
(in thousands) |  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Service cost |  | $ | 6,135 |  |  | $ | 6,699 |  |  | $ | 504 |  |  | $ | 381 |
Interest cost |  |  | 7,899 |  |  |  | 9,198 |  |  |  | 951 |  |  |  | 1,127 |
Expected return on plan assets |  |  | (10,575 | ) |  |  | (11,606 | ) |  |  | — |  |  |  | — |
Amortization of prior service cost (credit) |  |  | 63 |  |  |  | 85 |  |  |  | (894 | ) |  |  | (957 | )
Amortization of actuarial loss |  |  | 10,877 |  |  |  | 11,569 |  |  |  | 1,635 |  |  |  | 1,254 |
Net periodic cost before pension settlement charge |  |  | 14,399 |  |  |  | 15,945 |  |  |  | 2,196 |  |  |  | 1,805 |
Pension settlement charge |  |  | — |  |  |  | 42,988 |  |  |  | — |  |  |  | — |
Net periodic cost |  | $ | 14,399 |  |  | $ | 58,933 |  |  | $ | 2,196 |  |  | $ | 1,805 |
During the nine months ended September 30, 2021 and 2020, funding of pension and other postretirement employee benefit plans was $7.4 million and $8.5 million, respectively. Pension Annuitization In February 2020, we purchased a group annuity contract from an insurance company to transfer $101.1 million of our outstanding pension benefit obligation related to our qualified pension plans to the insurance company. This transaction was funded with plan assets. As a result of the transaction, the insurance company assumed responsibility for annuity administration and benefit payments to select retirees, with no change to their monthly retirement benefit payment amounts. The settlement triggered a remeasurement of plan assets and liabilities resulting in a reduction in the funded status of our qualified pension plans of approximately $26.2 million during the first quarter of 2020. In connection with this transaction, we recorded a non-cash pretax settlement charge of $43.0 million during the first quarter of 2020 in non-operating expense, net, as a result of accelerating the recognition of actuarial losses included in accumulated other comprehensive loss that would have been recognized in future periods.

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