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Summary of significant accounting policies - Liability for Sale of Future Royalties (Details) - USD ($) $ in Thousands |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jul. 17, 2020 | Jul. 31, 2020 | Dec. 31, 2020 | Dec. 31, 2021
Assigned royalty payments |  |  |  |
Cash consideration received from Royalty Purchase Agreement |  | $ 650,000 | $ 650,000 |
Assigned royalty payment, retained percentage | 57.067% |  |  |
Remaining potential milestones that can be achieved |  |  |  | $ 300,000
Royalty Purchase Agreement |  |  |  |
Assigned royalty payments |  |  |  |
Cash consideration received from Royalty Purchase Agreement | $ 650,000 |  |  |
Royalty Purchase Agreement | Assigned Royalty Payments |  |  |  |
Assigned royalty payments |  |  |  |
Assigned royalty payment, percentage | 42.933% |  |  |
Royalty purchase agreement, termination period | 60 days |  |  |
Royalty purchase agreement, payment maximum | $ 1,300,000 |  |  |

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- Definition Assigned Royalty Payment, Percentage + References No definition available. + Details
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- Definition Assigned Royalty Payment, Retained Percentage + References No definition available. + Details
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- Definition Cash received for sale of future royalties during the current period. + References No definition available. + Details
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- Definition Royalty Purchase Agreement, Payment Maximum + References No definition available. + Details
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- Definition Royalty Purchase Agreement, Termination Period + References No definition available. + Details
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- Details
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- Details
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