Strategic Technology Transactions, Goodwill and Other Purchased Intangible Assets - Purchased Intangible Assets, Subject to Amortization (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 28, 2013	Dec. 29, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 63,454	$ 33,263
Accumulated Amortization	23,084	16,572
Rasco technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	33,140	32,399
Accumulated Amortization	19,936	16,452
Ismeca technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	29,450
Accumulated Amortization	2,812
Duma technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	864	864
Accumulated Amortization	$ 336	$ 120