Strategic Technology Transactions, Goodwill and Other Purchased Intangible Assets - Purchased Intangible Assets, Subject to Amortization (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Dec. 29, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 52,527	$ 33,263
Accumulated Amortization	19,683	16,572
Rasco technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	31,883	32,399
Accumulated Amortization	18,183	16,452
Ismeca technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	19,780
Accumulated Amortization	1,236
Duma technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	864	864
Accumulated Amortization	$ 264	$ 120