Accrued expenses and other current liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Accrued CMO and CRO costs	$ 21,735	$ 24,824
Accrued employee compensation	15,375	19,972
Accrued rebates	13,998	5,365
Accrued goods and services	1,814	8,391
Accrued professional fees	10,070	2,531
Other sublease rent liability	3,379	3,310
Accrued refund liability	0	5,600
Other	3,808	3,195
Total accrued expenses and other current liabilities	$ 70,179	$ 73,188