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Warranty (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 28, 2020
Mar. 30, 2019
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Balance at beginning of period $ 1,942 $ 2,102
Accruals 660 889
Settlements (684) (970)
Balance at end of period $ 1,918 $ 2,021