Goodwill and Other Intangible Assets Details 1 (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Finite Life and Indefinite Life Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	$ 217,308	$ 226,718
Intangible Assets Excluding Goodwill Gross	315,510	312,408
Intangible Assets Accumulated Amortization	(98,202)	(85,690)
Customer Relationships [Member]
Finite Life and Indefinite Life Intangible Assets
Finite-Lived Intangible Assets, Gross	197,942	198,527
Finite-Lived Intangible Assets, Accumulated Amortization	(49,887)	(41,794)
Intangible Assets, Net (Excluding Goodwill)	148,055	156,733
Proven technology and patents
Finite Life and Indefinite Life Intangible Assets
Finite-Lived Intangible Assets, Gross	73,880	70,311
Finite-Lived Intangible Assets, Accumulated Amortization	(42,750)	(38,890)
Intangible Assets, Net (Excluding Goodwill)	31,130	31,421
Tradename (Finite Life)
Finite Life and Indefinite Life Intangible Assets
Finite-Lived Intangible Assets, Gross	4,504	4,518
Finite-Lived Intangible Assets, Accumulated Amortization	(2,874)	(2,807)
Intangible Assets, Net (Excluding Goodwill)	1,630	1,711
Tradename (Indefinite Life)
Finite Life and Indefinite Life Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	35,500	35,562
Indefinite-lived Intangible Assets (Excluding Goodwill)	35,500	35,562
Other Intangible Assets [Member]
Finite Life and Indefinite Life Intangible Assets
Finite-Lived Intangible Assets, Gross	3,684	3,490
Finite-Lived Intangible Assets, Accumulated Amortization	(2,691)	(2,199)
Intangible Assets, Net (Excluding Goodwill)	$ 993	$ 1,291

The total accumulated amount of amortization of intangible assets.

No definition available.

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- Definition

Sum of the gross carrying amount before accumulated amortization of finite-lived intangibles and the carrying amounts (original costs for current and prior period additions adjusted for impairment if any) of indefinite-lived intangibles as of the balance sheet date.

+ 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

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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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-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.

+ References

No definition available.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

+ References

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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 350
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