Goodwill and other intangible assets, net Components of intangible assets (Details) - USD ($) $ in Thousands	Mar. 27, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 1,618,033	$ 1,612,646
Accumulated amortization	(429,180)	(412,671)
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	623,151	621,078
Accumulated amortization	(222,109)	(214,924)
Intellectual property
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	523,287	522,374
Accumulated amortization	(181,482)	(173,903)
Distribution rights
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	23,376	23,279
Accumulated amortization	(14,767)	(14,393)
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	387,088	384,821
Accumulated amortization	(10,202)	(8,929)
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	2,223	2,186
Accumulated amortization	(620)	(522)
In-process research and development
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	0	0
Indefinite-lived intangible assets	$ 58,908	$ 58,908

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

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=26713463&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

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+ References

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

+ 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 (b)
-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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