Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Total revenue	$ 14,509	$ 6,855
Total cost of sales	29,133	16,654
Gross loss	(14,624)	(9,799)
Operating expenses:
Research and development	69,052	33,109
Sales and marketing	13,729	9,398
General and administrative	44,490	30,025
Total operating expenses	127,271	72,532
Loss from operations	(141,895)	(82,331)
Change in fair value of warrant liabilities	(1,054)	(3,857)
Interest expense	(1,665)	(3,280)
Interest income	1,905	1,071
Other income (expense)	(4,065)	468
Total other income (expense), net	(4,879)	(5,598)
Loss before provision for income taxes	(146,774)	(87,929)
Provision for income taxes	0	404
Net loss	$ (146,774)	$ (88,333)
Net loss per share:
Basic (in dollars per share)	$ (0.40)	$ (0.25)
Diluted (in dollars per share)	$ (0.40)	$ (0.25)
Shares used in computing net loss per share:
Basic (in shares)	370,742,917	348,683,836
Diluted (in shares)	370,742,917	348,683,836
Comprehensive Income (Loss):
Net loss	$ (146,774)	$ (88,333)
Net unrealized gain (loss) on available-for-sale debt securities	2,226	(3,648)
Comprehensive income (loss)	(144,548)	(91,981)
Products
Total revenue	7,367	1,541
Total cost of sales	19,203	11,818
Services
Total revenue	7,142	5,314
Total cost of sales	$ 9,930	$ 4,836