Goodwill and Other Intangible Assets - Amortized Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 106,240		$ 106,240
Accumulated Amortization	(39,944)		(37,272)
Net Amount	66,296		68,968
Amortization expense	2,672	1,863
Current Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	23,778		23,778
Accumulated Amortization	(14,716)		(14,060)
Net Amount	9,062		9,718
Patents and Patent Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	29,569		29,569
Accumulated Amortization	(18,721)		(17,919)
Net Amount	10,848		11,650
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	52,893		52,893
Accumulated Amortization	(6,507)		(5,293)
Net Amount	$ 46,386		$ 47,600