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Summary of Significant Accounting Policies - Rollforward of the Warranty Reserve (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Movement in Standard Product Warranty Accrual [Roll Forward]    
Beginning balance $ 40,851 $ 37,901
Warranty reserve related to acquisitions 7,769 2,446
Warranty expense 58,398 48,975
Warranty claims paid (54,184) (48,471)
Ending balance $ 52,834 $ 40,851