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Summary of Significant Accounting Policies - Rollforward of the Warranty Reserve (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Movement in Standard Product Warranty Accrual [Roll Forward]    
Beginning balance $ 37,901 $ 28,786
Warranty reserve related to acquisitions 2,446 5,815
Warranty expense 48,975 45,994
Warranty claims paid (48,471) (42,694)
Ending balance $ 40,851 $ 37,901