Business Combination (Schedule Of Preliminary Purchase Price Allocation) (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended
	Jul. 08, 2011	Sep. 30, 2011
Finite-Lived Intangible Assets [Line Items]
Total purchase consideration*	$ 457,387
Net tangible assets acquired	12,007
Intangible assets acquired	207,674
Deferred tax liability	(53,995)	(54,000)
Less fair value of all assets/liabilities acquired	165,686
Goodwill	291,701
Developed Product Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	107,260
Estimated useful Life, in years	7
In-Process Research And Development [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	7,591
Order Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	1,246
Estimated useful Life, in months	6
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	83,929
Estimated useful Life, in years	8
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 7,648
Estimated useful Life, in years	8