Goodwill and Identified Intangible Assets - Estimated Future Amortization Expense of Purchased Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 28, 2014	Dec. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
2014 (remaining 9 months)	$ 13,854
2015	6,502
2016	4,097
2017	0
2018	0
Total future amortization expense	24,453	31,119
Product cost of revenue [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
2014 (remaining 9 months)	9,029
2015	719
2016	0
2017	0
2018	0
Total future amortization expense	9,748
Operating Expenses [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
2014 (remaining 9 months)	4,825
2015	5,783
2016	4,097
2017	0
2018	0
Total future amortization expense	$ 14,705