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Net Periodic Benefit Cost (Tables) | 3 Months Ended
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Mar. 31, 2021
Retirement Benefits [Abstract] |
Net periodic benefit cost | Net periodic pension cost for the Company’s defined benefit pension plans and U.S. post-retirement medical plan includes the following components for the three months ended March 31:
| U.S. Pension Benefits |  | Non-U.S. Pension Benefits |  | Other U.S. Post-retirement Benefits |  | Total
| 2021 |  | 2020 |  | 2021 |  | 2020 |  | 2021 |  | 2020 |  | 2021 |  | 2020
Service cost, net | $ | 374 |  |  | $ | 326 |  |  | $ | 4,945 |  |  | $ | 4,517 |  |  | $ | — |  |  | $ | — |  |  | $ | 5,319 |  |  | $ | 4,843 |
Interest cost on projected benefit obligations | 548 |  |  | 889 |  |  | 850 |  |  | 1,180 |  |  | 2 |  |  | 6 |  |  | 1,400 |  |  | 2,075 |
Expected return on plan assets | (1,494) |  |  | (1,524) |  |  | (8,972) |  |  | (8,085) |  |  | — |  |  | — |  |  | (10,466) |  |  | (9,609) |
Recognition of prior service cost | — |  |  | — |  |  | (471) |  |  | (1,725) |  |  | — |  |  | — |  |  | (471) |  |  | (1,725) |
Recognition of actuarial losses/(gains) | 729 |  |  | 644 |  |  | 6,299 |  |  | 5,654 |  |  | (28) |  |  | (26) |  |  | 7,000 |  |  | 6,272 |
Net periodic pension cost/(credit) | $ | 157 |  |  | $ | 335 |  |  | $ | 2,651 |  |  | $ | 1,541 |  |  | $ | (26) |  |  | $ | (20) |  |  | $ | 2,782 |  |  | $ | 1,856 |

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- Definition Disclosures and provisions pertaining to defined benefit plans and other postretirement defined benefit plans. The arrangements are generally based on terms and conditions stipulated by the entity, and which contain a promise by the employer to pay certain amounts or awards at designated future dates, including a period after retirement, upon compliance with stipulated requirements. Excludes disclosures pertaining to defined contribution plans. + References No definition available. + Details
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- References No definition available. + Details
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