Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Total revenue	$ 40,698	$ 31,944	$ 13,951
Total cost of sales	100,983	46,092	24,952
Gross loss	(60,285)	(14,148)	(11,001)
Operating expenses:
Research and development	185,283	88,861	38,651
Sales and marketing	38,672	17,858	7,948
General and administrative	158,162	93,685	29,275
Total operating expenses	382,117	200,404	75,874
Loss from operations	(442,402)	(214,552)	(86,875)
Change in fair value of warrant liabilities	9,222	(26,126)	(268,266)
Impairment of investments and certain other assets	(6,016)	0	0
Loss on extinguishment of debt	0	0	(3,996)
Interest expense and other	(11,095)	(2,028)	(2,885)
Interest income and other	5,024	3,458	(276)
Total other income (expense), net	(2,865)	(24,696)	(275,423)
Loss before provision for (benefit from) income taxes	(445,267)	(239,248)	(362,298)
Provision for (benefit from) income taxes	672	(1,262)	0
Net loss	(445,939)	(237,986)	(362,298)
Net loss attributable to common stockholders	$ (445,939)	$ (237,986)	$ (369,055)
Net loss per share attributable to common stockholders:
Basic (in dollars per share)	$ (1.25)	$ (0.69)	$ (2.54)
Diluted (in dollars per share)	$ (1.25)	$ (0.69)	$ (2.54)
Shares used in computing net loss per share attributable to common stockholders:
Basic (in shares)	356,265,774	346,300,975	145,096,996
Diluted (in shares)	356,265,774	346,300,975	145,096,996
Comprehensive Loss:
Net loss	$ (445,939)	$ (237,986)	$ (362,298)
Net unrealized gains (losses) on available-for-sale debt securities	(3,318)	(942)	35
Comprehensive loss	(449,257)	(238,928)	(362,263)
Products
Total revenue	18,492	10,118	4,840
Total cost of sales	61,985	23,484	15,097
Services
Total revenue	22,206	21,826	9,111
Total cost of sales	$ 38,998	$ 22,608	$ 9,855