Balance Sheet Details - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Prepaid Expense And Other Assets [Abstract]
Refundable withholding tax	$ 2,335	$ 3,375
Prepaid regulatory filing fees	277	831
Prepaid manufacturing costs	191	113
Prepaid insurance	133	473
Other prepaid expenses and current assets	538	964
Total prepaid expenses and other current assets	$ 3,474	$ 5,756