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Warranty Reserves - Schedule of Changes in the Aggregate Warranty Reserve (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 25, 2021
Sep. 26, 2020
Sep. 25, 2021
Sep. 26, 2020
Product Warranties Disclosures [Abstract]        
Balance - beginning of period $ 44,575 $ 39,293 $ 42,643 $ 39,758
Accrual for products sold [1] 13,272 15,613 47,717 47,140
Expenditures (14,998) (14,904) (47,511) (46,896)
Balance - end of period $ 42,849 $ 40,002 $ 42,849 $ 40,002
[1] Changes in cost estimates related to pre-existing warranties were not material and aggregated with accruals for new warranty contracts in the ‘Accrual for products sold’ line.