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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	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 133,187	$ 134,999
Accumulated amortization	18,708	16,815
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	3,622	3,656
Accumulated amortization	2,979	2,970
Distribution And Manufacturing Rights And Know-How [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	4,059	4,059
Accumulated amortization	2,179	2,107
Customer Lists And Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	31,131	31,169
Accumulated amortization	5,444	5,068
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	1,350	1,154
Accumulated amortization	$ 290	$ 235
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	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	5 years

X

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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- Definition

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