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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

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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