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Commitments and Contingencies (Details) - USD ($)
$ in Thousands
9 Months Ended
Oct. 02, 2021
Sep. 26, 2020
Warranty Liabilities [Roll Forward]    
Balance at beginning of year $ 12,152 $ 11,345
Additions charged to costs and expenses for current-year sales 12,780 9,111
Deductions from reserves (13,489) (8,034)
Changes in liability for pre-existing warranties during the current year, including expirations (380) (381)
Balance at end of period $ 11,063 $ 12,041