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Goodwill and other intangible assets, net - Changes in carrying amount of goodwill, by reporting segment (Details) $ in Thousands	9 Months Ended
	Sep. 29, 2019 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 2,246,579
Goodwill related to acquisitions	1,841
Currency translation adjustment	(17,090)
Goodwill, ending balance	2,231,330
Americas
Goodwill [Roll Forward]
Goodwill, beginning balance	1,549,534
Goodwill related to acquisitions	441
Currency translation adjustment	(4,055)
Goodwill, ending balance	1,545,920
EMEA
Goodwill [Roll Forward]
Goodwill, beginning balance	480,615
Goodwill related to acquisitions	189
Currency translation adjustment	(11,667)
Goodwill, ending balance	469,137
Asia
Goodwill [Roll Forward]
Goodwill, beginning balance	211,547
Goodwill related to acquisitions	1,211
Currency translation adjustment	(1,368)
Goodwill, ending balance	211,390
OEM
Goodwill [Roll Forward]
Goodwill, beginning balance	4,883
Goodwill related to acquisitions	0
Currency translation adjustment	0
Goodwill, ending balance	$ 4,883

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266

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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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