Income Taxes - Summary of Loss Before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
United States	$ (27,921)	$ (14,233)	$ (19,386)
Foreign	(4,167)	(5,517)	(4,561)
Loss before income taxes	$ (32,088)	$ (19,750)	$ (23,947)