Goodwill And Other Intangible Assets (Schedule Of Gross Carrying Values, Accumulated Amortization, And Amortization Periods Of Definite Lived Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Acquired Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 14,020	$ 9,230
Accumulated Amortization	1,254	524
Amortization Period		11 years
Patents [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	4,621	5,610
Accumulated Amortization	2,455	2,871
Amortization Period	17 years	17 years
Distribution And Manufacturing Rights And Know-How [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	3,559	3,559
Accumulated Amortization	413	231
Amortization Period	15 years	15 years
Customer Lists And Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	3,370	2,370
Accumulated Amortization	270	114
Amortization Period		13 years
Non-compete Agreement [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	381	381
Accumulated Amortization	219	191
Amortization Period	10 years	10 years
Other [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	199	114
Accumulated Amortization	$ 105	$ 48
Minimum [Member] | Acquired Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization Period	11 years
Minimum [Member] | Customer Lists And Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization Period	13 years
Minimum [Member] | Other [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization Period	1 year	2 years