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Warranty Accrual Included in Other Accrued Liabilities (Detail) - USD ($)
$ in Thousands
3 Months Ended
Apr. 03, 2016
Apr. 05, 2015
Product Warranty Liability [Line Items]    
Balance at beginning of period $ 6,925 $ 8,942
Accruals for warranties issued during the period 3,490 2,361
Adjustments related to pre-existing warranties 243 (1,031)
Settlements made during the period (3,162) (2,849)
Balance at end of period $ 7,496 $ 7,423