Accrued Liabilities - Schedule of Accrued Compensation and Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Accrued compensation:
Accrued bonuses	$ 3,957	$ 14,379
Accrued paid time off	5,398	4,731
Accrued payroll	4,065	3,936
Other accrued compensation	545	676
Total accrued compensation	13,965	23,722
Accrued expenses and other current liabilities:
Accrued research and development services	9,749	10,110
Accrued professional fees	3,509	1,470
Accrued property and equipment	5,053	9,200
Other accrued current liabilities	1,363	2,682
Total accrued expenses and other current liabilities	$ 19,674	$ 23,462