Goodwill and Identified Intangible Assets - Amortization Expense for Identifiable Purchased Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 27, 2014	Jun. 28, 2013	Jun. 27, 2014	Jun. 28, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
Total amortization expense	$ 6,200	$ 6,772	$ 12,866	$ 13,805
Included in cost of revenue [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Total amortization expense	4,482	4,762	9,198	9,707
Included in operating expenses [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Total amortization expense	$ 1,718	$ 2,010	$ 3,668	$ 4,098