Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue	$ 6,180	$ 17,726
Cost of revenue	15,463	15,808
Gross profit (loss)	(9,283)	1,918
Operating expenses:
Research and development	21,297	18,378
Sales and marketing	6,005	7,075
General and administrative	12,317	17,036
Total operating expenses	39,619	42,489
Operating loss	(48,902)	(40,571)
Interest income	227	103
Interest expense	(3)	(36)
Other income (expense), net	4	(17)
Loss before income taxes	(48,674)	(40,521)
Provision for income taxes	447	296
Net loss	$ (49,121)	$ (40,817)
Net loss per share:
Basic (in USD per share)	$ (0.25)	$ (0.22)
Diluted (in USD per share)	$ (0.25)	$ (0.22)
Weighted-average shares used in computing net loss per share:
Basic (in shares)	198,166,060	189,222,807
Diluted (in shares)	198,166,060	189,222,807
Product
Revenue	$ 4,362	$ 10,593
Cost of revenue	15,196	15,629
License and services
Revenue	1,818	7,133
Cost of revenue	$ 267	$ 179