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Pension and other postretirement benefits (Tables) | 3 Months Ended
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Mar. 31, 2024
Retirement Benefits [Abstract] |
Net Benefit Cost of Pension and Postretirement Benefit Plans | The following table provides information regarding the components of the net benefit (income) expense of the pension and postretirement benefit plans for the three months ended March 31, 2024 and April 2, 2023:
| Pension |  | Other Benefits
| Three Months Ended |  | Three Months Ended
| March 31, 2024 |  | April 2, 2023 |  | March 31, 2024 |  | April 2, 2023
Service cost | $ | 601 |  |  | $ | 360 |  |  | $ | — |  |  | $ | — |
Interest cost | 2,118 |  |  | 4,350 |  |  | 109 |  |  | 186 |
Expected return on plan assets | (2,201) |  |  | (6,310) |  |  | — |  |  | — |
Net amortization and deferral | 1,354 |  |  | 2,154 |  |  | (645) |  |  | (339) |
Settlements | 138,139 |  |  | — |  |  | — |  |  | — |
Net benefit expense (income) | $ | 140,011 |  |  | $ | 554 |  |  | $ | (536) |  |  | $ | (153) |

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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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