Balance Sheet Details - Summary of Prepaid Expenses (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Prepaid Expenses [Line Items]
Prepaid expenses	$ 2,950	$ 5,223
Prepaid Clinical and Research Expense [Member]
Prepaid Expenses [Line Items]
Prepaid expenses	334	557
Prepaid Manufacturing Expenses [Member]
Prepaid Expenses [Line Items]
Prepaid expenses	2,049	4,188
Other Prepaid Expenses [Member]
Prepaid Expenses [Line Items]
Prepaid expenses	$ 567	$ 478