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Restructuring charges and impairment charges - Charges By Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Oct. 01, 2017 | Sep. 30, 2018 | Oct. 01, 2017
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 1,964 | $ (92) | $ 58,515 | $ 13,723
Vascular North America |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 203 | 582 | 725 | 1,663
Interventional North America |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (26) | (228) | 881 | 4,178
Anesthesia North America |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 38 | 220 | 164 | 1,031
EMEA |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 1,520 | (632) | 54,310 | 6,483
All Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 229 | $ (34) | $ 2,435 | $ 368

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