Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Accrued external research and development	$ 3,592	$ 3,578
Accrued compensation and related expenses	4,406	3,003
Accrued taxes payable	316	316
Operating lease liability, current	1,560	538
Accrued professional services and other	9,951	2,328
Total accrued expenses and other current liabilities	$ 19,825	$ 9,763