Other Financial Statement Information - Schedule Of Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Accrued clinical trial and drug manufacturing expenses	$ 14,529	$ 2,213
Accrued payroll	3,641	3,932
Other accrued expenses	1,429	678
Other current liabilities	286	0
Total accrued expenses and other current liabilities	19,990	8,749
Related Party [Member]
Related party payable	$ 105	$ 1,926