Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue	$ 2,264	$ 944
Cost of revenue	4,089	2,246
Gross loss	(1,825)	(1,302)
Research and development	78,158	41,434
Selling, general and administrative	32,215	15,902
Total operating expenses	110,373	57,336
Loss from operations	(112,198)	(58,638)
Change in fair value of warrants liability	0	(326,900)
Other income, net	295	378
Loss before provision for income taxes	(111,903)	(385,160)
Provision for income taxes	0	0
Net loss	(111,903)	(385,160)
Accretion of redeemable convertible preferred stock	0	4,135
Net loss attributable to common stockholders, basic	(111,903)	(389,295)
Net loss attributable to common stockholders, diluted	$ (111,903)	$ (389,295)
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.50)	$ (6.43)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.50)	$ (6.43)
Weighted-average shares used in computing net loss per share, basic (in shares)	222,526,454	60,576,886
Weighted-average shares used in computing net loss per share, diluted (in shares)	222,526,454	60,576,886