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Restructuring and other impairment charges - by segment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Restructuring Cost and Reserve [Line Items] |  |  |
Total restructuring charges | $ 15,871 | $ 7,819 | $ 17,869
Vascular North America |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Total restructuring charges | 5,906 | 3,742 | 8,057
Anesthesia North America |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Total restructuring charges | 1,839 | 384 | 1,379
Surgical North America |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Total restructuring charges | 151 | 397 | 0
EMEA |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Total restructuring charges | 4,423 | 4 | 6,375
Asia |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Total restructuring charges | 0 | 313 | 1,305
OEM |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Total restructuring charges | 795 | 61 | 0
All other |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Total restructuring charges | $ 2,757 | $ 2,918 | $ 753

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