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Summary of Significant Accounting Policies - Changes in Product Warranty Accrual (Detail) - USD ($)
$ in Thousands
3 Months Ended
Apr. 03, 2021
Mar. 28, 2020
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]    
Warranty accrual, beginning of period $ 2,740 $ 3,395
Accrual for warranties issued 1,112 117
Changes in pre-existing warranties (including changes in estimates) (733) (105)
Settlements made (406) (241)
Warranty accrual, end of period $ 2,713 $ 3,166