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Retirement and Other Employee Benefits (Tables) | 9 Months Ended
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Sep. 29, 2023
Retirement Benefits [Abstract] |
Net periodic benefit costs of pension plans and post-retirement plans | The following table sets forth the net periodic benefit costs of our defined benefit pension plans and post-retirement benefit plans (U.S. dollars in millions):
| Quarter ended |  | Nine months ended
| September 29, 2023 |  | September 30, 2022 |  | September 29, 2023 |  | September 30, 2022
Service cost | $ | 1.3 |  |  | $ | 1.5 |  |  | $ | 4.1 |  |  | $ | 4.4 |
Interest cost | 1.9 |  |  | 1.3 |  |  | 5.5 |  |  | 4.0 |
Expected return on assets | (0.8) |  |  | (0.6) |  |  | (2.4) |  |  | (2.0) |
Amortization of net actuarial loss | 0.2 |  |  | 0.2 |  |  | 0.5 |  |  | 0.5 |
Net periodic benefit costs | $ | 2.6 |  |  | $ | 2.4 |  |  | $ | 7.7 |  |  | $ | 6.9 |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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