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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
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]    
Accumulated amortization $ 10,572 $ 9,459
Acquired Technology [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 134,999 139,045
Accumulated amortization 16,815 8,685
Patents [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 3,656 3,612
Accumulated amortization 2,970 2,819
Distribution And Manufacturing Rights And Know-How [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 4,059 4,059
Accumulated amortization 2,107 1,820
Customer Lists And Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 31,169 32,419
Accumulated amortization 5,068 3,552
Other [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 1,154 1,439
Accumulated amortization $ 235 $ 1,076
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
Minimum [Member] | Other [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortization Period 3 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] | Other [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortization Period 5 years 3 years