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Subsequent events (Details) - 6 months ended Jun. 30, 2021 € in Millions, $ in Millions | USD ($) | EUR (€)
--- | --- | ---
Subsequent events |  |
Payments to Acquire Businesses, Gross | $ 46.3 |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Percentage | 25.00% |
Definitive Transaction Agreement, Development Milestone, Phase I and II | $ 43.7 |
Definitive Transaction Agreement, Development Milestone, Phase III | € |  | € 160.0

X
- Definition Percentage of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination. + References No definition available. + Details
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- Definition Amount of development milestones payable through Phase I/II. + References No definition available. + Details
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- Definition Amount of development milestones payable through Phase III. + References No definition available. + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
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- References No definition available. + Details
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