Warranty Accrual Included in Other Accrued Liabilities (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 04, 2015	Sep. 28, 2014	Oct. 04, 2015	Sep. 28, 2014
Product Warranty Liability [Line Items]
Balance at beginning of period	$ 8,228	$ 9,073	$ 8,942	$ 6,660
Acquisition			372
Accruals for warranties issued during the period	3,261	4,419	9,548	12,675
Adjustments related to pre-existing warranties	(1,211)	(559)	(3,039)	(1,000)
Settlements made during the period	(2,370)	(2,982)	(7,915)	(8,384)
Balance at end of period	$ 7,908	$ 9,951	$ 7,908	$ 9,951