CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Total revenue	$ 490,414	$ 435,137	$ 357,154
Total cost of revenue	354,379	327,102	301,765
Gross profit	136,035	108,035	55,389
Operating expenses:
Research and development	64,709	59,063	60,137
Sales and marketing	70,081	48,909	49,064
General and administrative	55,932	49,489	51,096
Restructuring charges	1,805	0	0
Impairment charges	0	9,116	0
Others	387	1,596	(44)
Total operating expenses	192,914	168,173	160,253
Loss from operations	(56,879)	(60,138)	(104,864)
Interest income	926	11	802
Other income, net	302	4,775	3,436
Loss before income taxes	(55,651)	(55,352)	(100,626)
Provision for income taxes	975	677	625
Net loss	$ (56,626)	$ (56,029)	$ (101,251)
Net loss per share:
Basic (in dollars per share)	$ (0.65)	$ (0.68)	$ (1.30)
Diluted (in dollars per share)	$ (0.65)	$ (0.68)	$ (1.30)
Weighted average shares used to compute net loss per share:
Basic (in shares)	87,173	82,688	78,084
Diluted (in shares)	87,173	82,688	78,084
Comprehensive loss:
Net loss	$ (56,626)	$ (56,029)	$ (101,251)
Other comprehensive income (loss), net of tax	(107)	(3)	5
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	(56,733)	(56,032)	(101,246)
Products
Total revenue	353,935	331,620	284,868
Total cost of revenue	308,692	285,334	263,905
Services
Total revenue	136,479	103,517	72,286
Total cost of revenue	$ 45,687	$ 41,768	$ 37,860