Significant Accounting Policies - Summary of Accrued expense (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Accounting Policies [Abstract]
Compensation	$ 7,467	$ 5,237
Severance	1,278	2,283
Clinical study related costs	4,271	1,658
Facility related costs	1,622	693
Accrued legal costs	633	1,015
Investment purchases payable	2,943	0
Manufacturing improvement costs	0	4,365
Accrued consulting and professional fees	425	878
Other accrued expenses	2,625	1,536
Total accrued expenses and other	$ 21,264	$ 17,665