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Postretirement Benefits | 3 Months Ended
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Mar. 28, 2020
Retirement Benefits [Abstract] |
Retirement Benefits [Text Block] | Postretirement Benefits The Company has defined contribution plans, nonqualified defined benefit pension plans, and other postretirement benefit plans covering substantially all of its employees. The Company's contributions to its defined contribution plans include matching and annual discretionary contributions which are based on various percentages of compensation, and in some instances are based on the amount of the employees' contributions to the plans. See Note 17 in the Notes to Consolidated Financial Statements in the 2019 Form 10-K for further details regarding these plans. Pension and other postretirement benefit costs included the following components for the three months ended March 28, 2020 and March 30, 2019:
| Pension Benefits |  | Other Postretirement Benefits
(in millions) | March 28, 2020 |  | March 30, 2019 |  | March 28, 2020 |  | March 30, 2019
Interest cost | $ | 0.2 |  |  | $ | 2.6 |  |  | $ | 0.2 |  |  | $ | 0.3 |
Expected return on plan assets | — |  |  | (3.3 | ) |  | — |  |  | — |
Amortization of prior service credits | — |  |  | — |  |  | (0.2 | ) |  | (0.2 | )
Amortization of net actuarial losses | 0.1 |  |  | 2.5 |  |  | — |  |  | — |
Net pension and other benefit costs | $ | 0.3 |  |  | $ | 1.8 |  |  | $ | — |  |  | $ | 0.1 |

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