Leases - Summary of Rent Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Schedule Of Rent Expense [Line Items]
Rent expense	$ 347	$ 512
Cost of sales
Schedule Of Rent Expense [Line Items]
Rent expense	162	235
General and administrative expense
Schedule Of Rent Expense [Line Items]
Rent expense	44	58
Research and development
Schedule Of Rent Expense [Line Items]
Rent expense	97	154
Sales and marketing
Schedule Of Rent Expense [Line Items]
Rent expense	$ 44	$ 65