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Employee Benefit Plans, Deferred Compensation Plan and Retirement Benefit Plan - Schedule of Components Included in Net Periodic Benefit Cost and Increase in Minimum Liability Included in Other Comprehensive Loss (Detail) - Defined Benefit Plan - USD ($)
$ in Thousands
 12 Months Ended
Dec. 28, 2020
Dec. 30, 2019
Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]      
Service cost   $ 397 $ 292
Interest cost $ 907 1,109 758
Expected return on plan assets (1,272) (1,228) (920)
Net periodic benefit cost $ (365) $ 278 $ 130