Balance Sheet Items - Summary of Accrued expenses and other current liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Payables and Accruals [Abstract]
Accrued payroll related expenses	$ 2,788	$ 3,308
Accrued research and development expenses	6,933	2,565
Accrued professional service expenses	2,051	732
Other	161	104
Total accrued expenses and other current liabilities	$ 11,933	$ 6,709