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Summary of significant accounting policies - Manufacturing Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Revenue recognition          
Revenue $ 196,576 $ 217,127 $ 630,766 $ 531,389  
Remaining performance obligations 1,200   1,200   $ 1,400
Manufacturing revenue          
Revenue recognition          
Revenue 2,365 $ 0 6,716 $ 0  
Contract with customer, asset $ 1,400   $ 1,400   $ 0