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Commitments and Contingencies - Narratve (Detail) $ in Millions | 12 Months Ended |
--- | --- | ---
Jan. 02, 2021 agreement Employees | Dec. 28, 2019 USD ($) | Dec. 29, 2018 USD ($)
Commitments And Contingencies [Line Items] |  |  |
Collective bargaining agreements expiration | 5 years |  |
Benefit recorded related to settlement | $ |  | $ 11.6 |
Workforce Subject to Collective Bargaining Arrangements |  |  |
Commitments And Contingencies [Line Items] |  |  |
Number of employees covered under collective bargaining agreements | 2,600 |  |
Percentage of employees covered under collective bargaining agreements | 21.00% |  |
Workforce Subject to Collective Bargaining Agreements Expiring in 2021 |  |  |
Commitments And Contingencies [Line Items] |  |  |
Number of employees covered under collective bargaining agreements | 1,325 |  |
Workforce Subject to Collective Bargaining Arrangements Expiring in 2022 |  |  |
Commitments And Contingencies [Line Items] |  |  |
Number of employees covered under collective bargaining agreements | 475 |  |
Workforce Subject to Collective Bargaining Arrangements Expiring in 2023 |  |  |
Commitments And Contingencies [Line Items] |  |  |
Number of employees covered under collective bargaining agreements | 800 |  |
Workforce Subject to Collective Bargaining Arrangements Expiring in 2024 |  |  |
Commitments And Contingencies [Line Items] |  |  |
Number of employees covered under collective bargaining agreements | agreement | 0 |  |
Workforce Subject to Collective Bargaining Arrangements Expiring in 2025 |  |  |
Commitments And Contingencies [Line Items] |  |  |
Number of employees covered under collective bargaining agreements | agreement | 0 |  |
Judgment In Patent Related Litigation Matter |  |  |
Commitments And Contingencies [Line Items] |  |  |
Loss contingency accrual | $ |  |  | $ 30.9

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