Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating expenses
Research and development	$ 79,757	$ 3,520	$ 94,506	$ 14,704
Sales and marketing	6,832	221	11,099	1,691
General and administrative	36,725	13,806	64,148	32,538
Loss on disposal of property and equipment	62,342	0	62,987	0
Total operating expenses	185,656	17,547	232,740	48,933
Loss from operations	(185,656)	(17,547)	(232,740)	(48,933)
Change in fair value measurement of liabilities	(22,747)	1,394	(60,394)	10,056
Interest expense	(296)	(8,505)	(26,550)	(22,955)
Related party interest expense	(1,597)	(7,030)	(15,765)	(24,902)
Other income (expense), net	1,117	(2,260)	(718)	(2,697)
(Loss)/gain on settlement of related party notes payable, notes payable and vendor payables in trust, net	(94,727)	609	(96,036)	295
Loss before income taxes	(303,906)	(33,339)	(432,203)	(89,136)
Income tax provision	0	0	(3)	0
Net loss	(303,906)	(33,339)	(432,206)	(89,136)
Total comprehensive loss:
Net loss	(303,906)	(33,339)	(432,206)	(89,136)
Change in foreign currency translation adjustment	189	(3,169)	(487)	(1,392)
Total comprehensive loss	$ (303,717)	$ (36,508)	$ (432,693)	$ (90,528)
Class A Common Stock
Per share information:
Net loss per Common Stock – basic (in dollars per share)	$ (1.06)	$ (0.21)	$ (2.12)	$ (0.57)
Net loss per Common Stock – diluted (in dollars per share)	$ (1.06)	$ (0.21)	$ (2.12)	$ (0.57)
Weighted average Common Stock outstanding – basic (in shares)	287,951,929	157,060,201	203,686,758	157,055,242
Weighted average Common Stock outstanding – diluted (in shares)	287,951,929	157,060,201	203,686,758	157,055,242
Class B Common Stock
Per share information:
Net loss per Common Stock – basic (in dollars per share)	$ (1.06)	$ (0.21)	$ (2.12)	$ (0.57)
Net loss per Common Stock – diluted (in dollars per share)	$ (1.06)	$ (0.21)	$ (2.12)	$ (0.57)
Weighted average Common Stock outstanding – basic (in shares)	287,951,929	157,060,201	203,686,758	157,055,242
Weighted average Common Stock outstanding – diluted (in shares)	287,951,929	157,060,201	203,686,758	157,055,242