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Fair value measurement - Narrative (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2019 USD ($)
NeoTract |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Milestone payment | $ 106.8
Essential Medical, Inc. |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Milestone payment | $ 30.0

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- Definition Amount of cash outflow, made soon after acquisition date of business combination, to settle contingent consideration liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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