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Employee Retirement Plans | 9 Months Ended
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Oct. 01, 2022
Employee Retirement Plans [Abstract] |
Employee Retirement Plans | Employee Retirement Plans The following table summarizes the company's net periodic pension benefit related to the AGA Group pension plans (in thousands):
|  | Three Months Ended |  | Nine Months Ended
|  | Oct 1, 2022 |  | Oct 2, 2021 |  | Oct 1, 2022 |  | Oct 2, 2021
Net Periodic Pension Benefit: |  |  |  |  |  |  |  |
Service cost |  | $ | — |  |  | $ | 194 |  |  | $ | — |  |  | $ | 584 |
Interest cost |  | 5,881 |  |  | 4,287 |  |  | 18,867 |  |  | 12,927 |
Expected return on assets |  | (17,505) |  |  | (19,516) |  |  | (56,155) |  |  | (58,851) |
Amortization of net loss (gain) |  | 847 |  |  | 3,150 |  |  | 2,716 |  |  | 9,498 |
Amortization of prior service cost (credit) |  | 611 |  |  | 716 |  |  | 1,960 |  |  | 2,158 |
|  | $ | (10,166) |  |  | $ | (11,169) |  |  | $ | (32,612) |  |  | $ | (33,684) |
The pension costs for all other plans of the company were not material during the period. The service cost component is recognized within Selling, general and administrative expenses and the non-operating components of pension benefit are included within Net periodic pension benefit (other than service cost) in the Condensed Consolidated Statements of Comprehensive Income.

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