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Nature of Operations and Summary of Significant Accounting Policies - Intangible Assets By Major Asset Class (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Acquired Finite-Lived Intangible Assets [Line Items]
Gross		$ 193,883	$ 109,843
Currency Translation	$ (1,739)	(8,073)
Accumulated Amortization	(56,913)	(49,040)
Net	135,231	52,730
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross		111,801	59,101
Currency Translation	(821)	(5,202)
Accumulated Amortization	(26,404)	(21,805)
Net	84,576	32,094
Intellectual Property [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross		46,501	27,101
Currency Translation	(817)	(2,052)
Accumulated Amortization	(18,846)	(17,105)
Net	26,838	7,944
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross		21,827	12,547
Currency Translation	(39)	(591)
Accumulated Amortization	(1,382)	(1,065)
Net	20,406	10,891
Other Intangibles [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross		13,754	$ 11,094
Currency Translation	(62)	(228)
Accumulated Amortization	(10,281)	(9,065)
Net	$ 3,411	$ 1,801

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- Definition

Intangible Assets, Excluding Goodwill, Foreign Currency Translation Gain (Loss)

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-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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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

Reference 2: 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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-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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