Goodwill and Other Acquision-Related Intangible Assets Narrative (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Goodwill and Other Intangible Assets Activity [Line Items]
Goodwill, Impairment Loss	$ 0	$ 0	$ 0
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	0	186
Second 2012 Acquisition [Member] | Year 2012 [Member]
Goodwill and Other Intangible Assets Activity [Line Items]
Finite-Lived Intangible Assets, Useful Life	5 years
In Process Research And Development [Member]
Goodwill and Other Intangible Assets Activity [Line Items]
Finite-Lived Intangible Assets, Useful Life	3 years
In Process Research And Development [Member] | Year 2012 [Member]
Goodwill and Other Intangible Assets Activity [Line Items]
Transfer of indefinite-lived intangible assets to finite-lived intangible assets	929
In Process Research And Development [Member] | Year 2011 [Member]
Goodwill and Other Intangible Assets Activity [Line Items]
Transfer of indefinite-lived intangible assets to finite-lived intangible assets		250
Developed Technology Rights [Member] | First 2012 Acquisition [Member] | Year 2012 [Member]
Goodwill and Other Intangible Assets Activity [Line Items]
Finite-Lived Intangible Assets, Useful Life	11 years
Finite-lived Intangible Assets Acquired	4,850
Developed Technology Rights [Member] | Second 2012 Acquisition [Member] | Year 2012 [Member]
Goodwill and Other Intangible Assets Activity [Line Items]
Finite-lived Intangible Assets Acquired	570
Customer Relationships [Member] | Second 2012 Acquisition [Member] | Year 2012 [Member]
Goodwill and Other Intangible Assets Activity [Line Items]
Finite-lived Intangible Assets Acquired	670
Patents [Member] | Year 2012 [Member]
Goodwill and Other Intangible Assets Activity [Line Items]
Finite-lived Intangible Assets Acquired		0
Patents [Member] | Year 2011 [Member]
Goodwill and Other Intangible Assets Activity [Line Items]
Finite-Lived Intangible Assets, Useful Life		11 years
Finite-lived Intangible Assets Acquired		1,600
In Process Research And Development Non-Amortizing [Member] | Second 2012 Acquisition [Member]
Goodwill and Other Intangible Assets Activity [Line Items]
Indefinite-lived Intangible Assets, Acquired During Period	850
Goodwill | Second 2012 Acquisition [Member]
Goodwill and Other Intangible Assets Activity [Line Items]
Indefinite-lived Intangible Assets, Acquired During Period	$ 1,015