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Summary of Significant Accounting Policies - Rollforward of the Warranty Reserve (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 02, 2021
Dec. 28, 2019
Movement in Standard Product Warranty Accrual [Roll Forward]    
Beginning balance $ 66,374 $ 59,451
Warranty reserve related to acquisitions 1,485 7,353
Warranty expense 58,047 68,842
Warranty claims paid (56,239) (69,272)
Ending balance $ 69,667 $ 66,374