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Net revenues Other revenues (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Net revenues	$ 680,952	$ 648,319	$ 652,507	$ 613,584	$ 641,615	$ 609,672	$ 609,866	$ 587,230	$ 2,595,362	$ 2,448,383	$ 2,146,303
Vascular access
Disaggregation of Revenue [Line Items]
Net revenues									600,874	575,327	540,234
Anesthesia
Disaggregation of Revenue [Line Items]
Net revenues									338,413	349,370	344,599
Interventional
Disaggregation of Revenue [Line Items]
Net revenues									427,563	395,423	324,681
Surgical
Disaggregation of Revenue [Line Items]
Net revenues									370,074	358,707	356,156
Interventional urology
Disaggregation of Revenue [Line Items]
Net revenues									290,449	196,735	38,957
OEM
Disaggregation of Revenue [Line Items]
Net revenues									220,717	205,976	182,967
Other
Disaggregation of Revenue [Line Items]
Net revenues									$ 347,272	$ 366,845	$ 358,709

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
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-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

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-Publisher FASB
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