CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Revenue	$ 41,029	$ 33,578	$ 18,904
Cost of revenue	30,099	24,492	17,391
Gross profit	10,930	9,086	1,513
Operating expenses:
Research and development	64,317	34,579	23,317
Sales and marketing	30,833	22,258	8,998
General and administrative	61,203	51,959	20,960
Total operating expenses	156,353	108,796	53,275
Loss from operations	(145,423)	(99,710)	(51,762)
Other (expense) income:
Interest income	2,208	471	24
Interest expense	(2,694)	(504)	(2,517)
Other income (expense), net	7,654	2,968	(52,150)
Total other income (expense), net	7,168	2,935	(54,643)
Loss before income taxes	(138,255)	(96,775)	(106,405)
Provision (benefit from) for income tax expense	305	(2,794)	375
Net loss	(138,560)	(93,981)	(106,780)
Other comprehensive loss
Foreign currency translation adjustments	(143)	(6)	0
Total comprehensive loss	$ (138,703)	$ (93,987)	$ (106,780)
Earnings Per Share [Abstract]
Net loss per common share, basic (in dollars per share)	$ (0.78)	$ (0.70)	$ (5.98)
Net loss per common share, diluted (in dollars per share)	$ (0.78)	$ (0.70)	$ (5.98)
Weighted-average shares used to compute basic net loss per share (in shares)	177,923,156	133,917,571	17,858,976
Weighted-average shares used to compute diluted net loss per share (in shares)	177,923,156	133,917,571	17,858,976
Product
Income Statement [Abstract]
Revenue	$ 41,029	$ 33,578	$ 16,886
Cost of revenue	30,099	24,492	17,365
Services
Income Statement [Abstract]
Revenue	0	0	2,018
Cost of revenue	$ 0	$ 0	$ 26