Accrued expenses and other current liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Payables and Accruals [Abstract]
Accrued manufacturing costs	$ 6,183	$ 7,199
Accrued goods and services	7,709	8,134
Accrued clinical and contract research organization costs	13,689	12,368
Accrued employee compensation	19,442	20,095
Accrued professional fees	2,748	1,939
Other	7,997	748
Total accrued expenses and other current liabilities	$ 57,768	$ 50,483