Schedule of Amortizable Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 30, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets
Gross Carrying Amount	$ 543,236	$ 543,236
Accumulated Amortization	309,216	290,945
Net Carrying Amount	234,020	252,291
Weighted Average Useful Life, years	7 years	7 years
Developed technology
Finite-Lived Intangible Assets
Gross Carrying Amount	362,126	362,126
Accumulated Amortization	206,551	193,756
Net Carrying Amount	155,575	168,370
Weighted Average Useful Life, years	6 years 3 months 18 days	6 years 3 months 18 days
Customer Relationships
Finite-Lived Intangible Assets
Gross Carrying Amount	146,276	146,276
Accumulated Amortization	86,333	81,742
Net Carrying Amount	59,943	64,534
Weighted Average Useful Life, years	8 years	8 years
Trade names and trademarks
Finite-Lived Intangible Assets
Gross Carrying Amount	33,834	33,834
Accumulated Amortization	15,332	14,447
Net Carrying Amount	18,502	19,387
Weighted Average Useful Life, years	9 years	9 years
Customer backlog
Finite-Lived Intangible Assets
Gross Carrying Amount	1,000	1,000
Accumulated Amortization	$ 1,000	$ 1,000
Weighted Average Useful Life, years	4 months 24 days	4 months 24 days