Long-term debt - Narrative (Details) - The 2022 Term Loan 3 - USD ($) $ in Millions	Sep. 20, 2022	Jun. 30, 2023
Debt Instrument [Line Items]
Debt instrument, maximum borrowing capacity	$ 50
Maximum borrowing capacity	30	$ 10
Debt instrument, additional maximum amount within nine months after closing	10
Debt instrument, additional maximum amount upon certain milestone achievements	10
Debt instrument, additional maximum at discretion of lender	10
Debt instrument, face amount	$ 20	$ 20
Debt instrument, interest rate, maximum stated percentage for each tranche borrowed	1.00%
Prime Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.50%