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Employee Benefit Plans, Deferred Compensation Plan and Retirement Benefit Plan - Schedule of Amounts Before Income Tax Effect Included in Accumulated Other Comprehensive Loss (Detail) - Defined Benefit Plan - USD ($)
$ in Thousands
Dec. 28, 2020
Dec. 30, 2019
Defined Benefit Plan Disclosure [Line Items]    
Net actuarial loss $ (3,811) $ (2,097)
Accumulated other comprehensive loss $ (3,811) $ (2,097)