Goodwill and Other Acquision-Related Intangible Assets Narrative (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 Y	Dec. 31, 2010	Dec. 31, 2009
Goodwill [Line Items]
Goodwill, Impairment Loss	$ 0	$ 0	$ 0
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	186	365
Intangible asset amortization period - minimum (in years)	3
Intangible asset amortization period - maximum (in years)	15
Year 2011 [Member]
Goodwill [Line Items]
Transfer of indefinite-lived intangible assets to finite-lived intangible assets	250
Year 2010 [Member]
Goodwill [Line Items]
Transfer of indefinite-lived intangible assets to finite-lived intangible assets		600
In Process Research And Development [Member]
Goodwill [Line Items]
Product Lines Abandoned	1	3
Intangible asset amortization period - minimum (in years)	3
Intangible asset amortization period - maximum (in years)	5
In Process Research And Development [Member] | Year 2011 [Member]
Goodwill [Line Items]
Finite-Lived Intangible Assets, Useful Life	3
Product Lines	1
In Process Research And Development [Member] | Year 2010 [Member]
Goodwill [Line Items]
Finite-Lived Intangible Assets, Useful Life		5
Product Lines		2
Patents Trademarks And Other [Member]
Goodwill [Line Items]
Intangible asset amortization period - minimum (in years)	4
Intangible asset amortization period - maximum (in years)	15
Patents [Member]
Goodwill [Line Items]
Payments to Acquire Intangible Assets	$ 1,600	$ 665
Patents [Member] | Year 2011 [Member]
Goodwill [Line Items]
Finite-Lived Intangible Assets, Useful Life	11
Patents [Member] | Year 2010 [Member]
Goodwill [Line Items]
Finite-Lived Intangible Assets, Useful Life		15