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Restructuring charges - Charges by segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2017	Jun. 26, 2016	Jul. 02, 2017	Jun. 26, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 870	$ (119)	$ 13,815	$ 9,849
Vascular North America
Restructuring Cost and Reserve [Line Items]
Restructuring charges	361	351	1,109	4,514
Anesthesia North America
Restructuring Cost and Reserve [Line Items]
Restructuring charges	564	364	811	2,239
Surgical North America
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0	0	0	(20)
EMEA
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(365)	(949)	7,135	2,923
Asia
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0	(2)	0	0
OEM
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0	(1)	0	4
All Other
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 310	$ 118	$ 4,760	$ 189

X

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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- Definition

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+ References

No definition available.

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