Segment, Customer Concentration and Geographical Information - Company Revenue in Different Geographic Locations (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue from External Customer [Line Items]
Total revenues	$ 11,699	$ 16,443	$ 37,108	$ 43,743
Americas | Geographical components
Revenue from External Customer [Line Items]
Total revenues	11,247	15,825	35,654	41,323
EMEA | Geographical components
Revenue from External Customer [Line Items]
Total revenues	$ 452	$ 618	$ 1,454	$ 2,420