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Employee Benefits - Schedule of Fair Value of Total Assets By Category (Details) - USD ($) $ in Thousands | Jan. 01, 2022 | Jan. 02, 2021 | Dec. 28, 2019
--- | --- | --- | ---
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | $ 94,269 | $ 91,143 | $ 83,606
Pension plan |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 94,269 | 91,146 |
Pension plan | Quoted prices in active markets of identical assets (Level 1) |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 2,399 | 2,371 |
Pension plan | Significant other observable inputs (Level 2) |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 0 | 0 |
Pension plan | Significant other unobservable inputs (Level 3) |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 0 | 0 |
Pension plan | Fair Value Measured at Net Asset Value Per Share |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 91,870 | 88,775 |
Pension plan | Return-seeking securities - Collective investment trust |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 69,397 | 64,870 |
Pension plan | Return-seeking securities - Collective investment trust | Quoted prices in active markets of identical assets (Level 1) |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 0 | 0 |
Pension plan | Return-seeking securities - Collective investment trust | Significant other observable inputs (Level 2) |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 0 | 0 |
Pension plan | Return-seeking securities - Collective investment trust | Significant other unobservable inputs (Level 3) |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 0 | 0 |
Pension plan | Return-seeking securities - Collective investment trust | Fair Value Measured at Net Asset Value Per Share |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 69,397 | 64,870 |
Pension plan | Liability-matching securities - Collective investment trusts |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 22,473 | 23,905 |
Pension plan | Liability-matching securities - Collective investment trusts | Quoted prices in active markets of identical assets (Level 1) |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 0 | 0 |
Pension plan | Liability-matching securities - Collective investment trusts | Significant other observable inputs (Level 2) |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 0 | 0 |
Pension plan | Liability-matching securities - Collective investment trusts | Significant other unobservable inputs (Level 3) |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 0 | 0 |
Pension plan | Liability-matching securities - Collective investment trusts | Fair Value Measured at Net Asset Value Per Share |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 22,473 | 23,905 |
Pension plan | Cash |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 2,399 | 2,371 |
Pension plan | Cash | Quoted prices in active markets of identical assets (Level 1) |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 2,399 | 2,371 |
Pension plan | Cash | Significant other observable inputs (Level 2) |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 0 | 0 |
Pension plan | Cash | Significant other unobservable inputs (Level 3) |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | 0 | 0 |
Pension plan | Cash | Fair Value Measured at Net Asset Value Per Share |  |  |
Asset allocation structure of the portfolio |  |  |
Fair value of plan assets by asset category | $ 0 | $ 0 |

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