Prepaid Expense and Other Current Assets - Summary of Prepaid Expense and Other Current Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Advance payments to suppliers and rent deposit	$ 1,592	$ 1,499
Prepaid insurance	907	7,378
Deferred costs	51	3
VAT receivable	2,093	1,176
Other prepaid expenses	474	298
Total prepaid expenses and other current assets	$ 5,117	$ 10,354