Warranty - Summary of Accrued Warranty Obligation (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014
Product Warranties Disclosures [Abstract]
Balance at the beginning of period	$ 24,666	$ 4,125
Warranty expense	16,126	3,648
Warranty payments	(15,401)	(3,587)
Balance at the end of period	$ 25,391	$ 4,186