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Summary of Significant Accounting Policies (Details 1) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 312,286	$ 241,185
Accumulated Amortization	(82,311)	(74,130)
Intangible Assets, Net (Excluding Goodwill)	229,975	167,055
Trade Names [Member]
Intangible Assets [Line Items]
Gross amount, Tradename (indefinite life)	35,603	28,272
Intangible Assets, Net (Excluding Goodwill)	35,603	28,272
Customer Relationships [Member]
Intangible Assets [Line Items]
Gross amount	198,355	147,466
Accumulated Amortization	(39,757)	(34,672)
Intangible Assets, Net (Excluding Goodwill)	158,598	112,794
Proven technology and patents [Member]
Intangible Assets [Line Items]
Gross amount	70,169	58,394
Accumulated Amortization	(37,711)	(35,128)
Intangible Assets, Net (Excluding Goodwill)	32,458	23,266
Trade Names [Member]
Intangible Assets [Line Items]
Gross amount	4,486	4,182
Accumulated Amortization	(2,765)	(2,514)
Intangible Assets, Net (Excluding Goodwill)	1,721	1,668
Other Intangible Assets [Member]
Intangible Assets [Line Items]
Gross amount	3,673	2,871
Accumulated Amortization	(2,078)	(1,816)
Intangible Assets, Net (Excluding Goodwill)	$ 1,595	$ 1,055

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
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