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Goodwill And Other Intangible Assets (Schedule Of Intangible Assets With Determinable Useful Lives By Major Category) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Line Items]
Gross Carrying Amount	$ 142,300	$ 142,300
Accumulated Amortization	(46,294)	(33,414)
Net Carrying Amount	96,006	108,886
Trade Name [Member]
Goodwill [Line Items]
Gross Carrying Amount	22,500	22,500
Accumulated Amortization	(7,721)	(5,512)
Net Carrying Amount	14,779	16,988
Technological Know-How [Member]
Goodwill [Line Items]
Gross Carrying Amount	55,300	55,300
Accumulated Amortization	(23,503)	(17,265)
Net Carrying Amount	31,797	38,035
Customer Related Intangible [Member]
Goodwill [Line Items]
Gross Carrying Amount	64,500	64,500
Accumulated Amortization	(15,070)	(10,637)
Net Carrying Amount	$ 49,430	$ 53,863

X

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

+ References

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-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
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