Balance Sheet Items - Summary of Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Payables and Accruals [Abstract]
Accrued research and development expenses	$ 12,643	$ 7,554
Accrued payroll related expenses	9,165	6,129
Accrued professional service expenses	3,675	2,088
Other	1,041	179
Total accrued expenses and other current liabilities	$ 26,524	$ 15,950