Goodwill and Identified Intangible Assets - Estimated Future Amortization Expense of Purchased Intangible Assets (Detail) - USD ($) $ in Thousands	Jul. 01, 2016	Dec. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
2016 (remaining six months)	$ 6,983
2017	9,144
2018	9,144
2019	9,144
2020	4,620
Thereafter	603
Total future amortization expense	39,638	$ 4,097
Cost of Sales [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
2016 (remaining six months)	2,688
2017	5,376
2018	5,376
2019	5,376
2020	978
Thereafter	0
Total future amortization expense	19,794
Operating Expense [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
2016 (remaining six months)	4,295
2017	3,768
2018	3,768
2019	3,768
2020	3,642
Thereafter	603
Total future amortization expense	$ 19,844