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	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 218,678	$ 222,182
Accumulated amortization	41,655	36,091
Customer Lists And Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	31,246	31,316
Accumulated amortization	8,880	8,132
Distribution And Manufacturing Rights And Know-How [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	14,392	14,728
Accumulated amortization	6,378	5,349
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	4,037	3,966
Accumulated amortization	3,127	3,113
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	3,854	3,453
Accumulated amortization	$ 1,422	$ 1,073
Minimum [Member] | Acquired Technology [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] | Distribution And Manufacturing Rights And Know-How [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	5 years	5 years
Minimum [Member] | Other [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	4 years	4 years
Maximum [Member] | Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	22 years	22 years
Maximum [Member] | Customer Lists And Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	22 years	22 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] | Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	17 years	17 years
Maximum [Member] | Other [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	5 years	5 years