Summary of Significant Accounting Policies - Rollforward of the Warranty Reserve (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017
Movement in Standard Product Warranty Accrual [Roll Forward]
Beginning balance	$ 52,834	$ 40,851
Warranty reserve related to acquisitions	5,884	7,769
Warranty expense	62,314	58,398
Warranty claims paid	(61,581)	(54,184)
Ending balance	$ 59,451	$ 52,834