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Goodwill And Other Intangible Assets (Schedule Of Gross Carrying Values, Accumulated Amortization, And Approximate Amortization Period Of Definite Lived Intangible Assets) (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2017
Dec. 31, 2016
Acquired Technology [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value $ 38,478 $ 38,478
Accumulated amortization 7,615 5,956
Patents [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 3,593 3,710
Accumulated amortization 2,766 2,702
Distribution And Manufacturing Rights And Know-How [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 4,059 4,059
Accumulated amortization 1,748 1,532
Customer Lists And Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 29,140 29,140
Accumulated amortization 3,190 2,141
Non-Compete Agreement [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value   381
Accumulated amortization   381
Other [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 1,418 1,262
Accumulated amortization $ 942 $ 531
Minimum [Member] | Acquired Technology [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortization Period 11 years 11 years
Minimum [Member] | Distribution And Manufacturing Rights And Know-How [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortization Period 11 years 11 years
Minimum [Member] | Customer Lists And Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortization Period 13 years 13 years
Maximum [Member] | Acquired Technology [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortization Period 22 years 22 years
Maximum [Member] | Patents [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortization Period 17 years 17 years
Maximum [Member] | Distribution And Manufacturing Rights And Know-How [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortization Period 15 years 15 years
Maximum [Member] | Customer Lists And Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortization Period 22 years 22 years
Maximum [Member] | Non-Compete Agreement [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortization Period   10 years
Maximum [Member] | Other [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortization Period 3 years 3 years