Strategic Technology Transactions, Goodwill and Purchased Intangible Assets - Additional Information (Detail) (USD $)	12 Months Ended			1 Months Ended	12 Months Ended			0 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011	Aug. 31, 2012 Duma Technology [Member]	Dec. 28, 2013 Duma Technology [Member]	Dec. 28, 2013 Rasco Technology [Member]	Dec. 29, 2012 Rasco Technology [Member]	Dec. 31, 2012 Ismeca [Member]	Dec. 28, 2013 Ismeca [Member]
Intangible Assets [Line Items]
Purchase price of acquisition				$ 1,000,000				$ 90,835,000
Purchase price of acquisition, cash reserves								57,143,000
Purchase price of acquisition, liabilities assumed								33,692,000
Amortization of intangible assets on straight-line basis				3 years	1 year 7 months 6 days
Amounts excluded related to trade names						2,400,000	2,300,000		4,000,000
Amortization expense related to purchased intangible assets	8,082,000	4,057,000	4,645,000
Amortization of future expenses, 2014	8,300,000
Amortization of future expenses, 2015	8,200,000
Amortization of future expenses, 2016	7,600,000
Amortization of future expenses, 2017	3,700,000
Amortization of future expenses, 2018	3,700,000
Thereafter	$ 7,400,000