Business Combinations (Schedule of Acquired Intangible Assets) (Details) (AATI [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2012 Y	Jan. 09, 2012
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Amount		$ 40,240
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Amount		21,200
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	4.7
DevelopedTechnology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Amount		15,500
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	5.0
In-Process Research and Development [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Amount		1,540
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Amount		900
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	5.0
Backlog [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Amount		$ 1,100
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	0.3