Annual report pursuant to Section 13 and 15(d)

Contingencies and commitments - Clinical Trials and Contract Manufacturing Commitments (Details)

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Contingencies and commitments - Clinical Trials and Contract Manufacturing Commitments (Details) - Clinical trials and contract manufacturing commitments - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Contingencies and commitments      
Subcontract costs $ 46,469,000 $ 33,744,000 $ 32,788,000
Other commitments $ 14,332,000