Accounts Payable and Accrued Expenses - Schedule of Accounts Payable and Accrued Expenses (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Accounts Payable and Accrued Expenses
Accounts payable	$ 4,978	$ 11,583
Accrued research projects	5,895	4,343
Accrued compensation and benefits	2,064	6,519
Accrued professional fees and other	1,938	3,147
Total	$ 14,875	$ 25,592