Strategic Technology Transactions, Goodwill and Other Purchased Intangible Assets - Preliminary Allocation of Other Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	$ 25,365
Unpatented complete technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	16,827
Estimated Average Remaining Useful Life	8 years
Customer relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	3,631
Estimated Average Remaining Useful Life	8 years
Trade name [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	$ 4,907