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Goodwill And Intangibles (Intangible Assets) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 72,739	$ 74,188
Accumulated Amortization	(26,895)	(22,965)
Net Carrying Amount	45,844	51,223
Patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,036	8,036
Accumulated Amortization	(5,893)	(5,486)
Net Carrying Amount	$ 2,143	$ 2,550
Weighted- Average Lives	8 years	8 years
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 25,577	$ 26,768
Accumulated Amortization	(5,603)	(5,584)
Net Carrying Amount	$ 19,974	$ 21,184
Weighted- Average Lives	11 years	11 years
Production know-how
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 6,768	$ 6,820
Accumulated Amortization	(5,595)	(5,035)
Net Carrying Amount	$ 1,173	$ 1,785
Weighted- Average Lives	8 years	8 years
Technology, trademark and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 32,358	$ 32,564
Accumulated Amortization	(9,804)	(6,860)
Net Carrying Amount	$ 22,554	$ 25,704
Weighted- Average Lives	7 years	8 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

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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

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 350
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-Section 50
-Paragraph 2
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount after 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)
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