Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating expenses
Research and development	$ 48,062	$ 79,757	$ 260,221	$ 94,506
Sales and marketing	3,888	6,832	16,272	11,099
General and administrative	28,655	36,725	89,173	64,148
Loss on disposal of property and equipment	0	62,342	1,407	62,987
Total operating expenses	80,605	185,656	367,073	232,740
Loss from operations	(80,605)	(185,656)	(367,073)	(232,740)
Change in fair value measurements	(6,966)	(22,747)	(622)	(60,394)
Interest expense	(663)	(296)	(5,537)	(26,550)
Related party interest expense	(996)	(1,597)	(2,931)	(15,765)
Other (expense) income, net	(6,457)	1,117	(14,307)	(718)
Loss on extinguishment or settlement of related party notes payable, notes payable and vendor payables in trust, net	(7,690)	(94,727)	(7,690)	(96,036)
Loss before income taxes	(103,377)	(303,906)	(398,160)	(432,203)
Income tax provision	0	0	(9)	(3)
Net loss	(103,377)	(303,906)	(398,169)	(432,206)
Total comprehensive loss:
Net loss	(103,377)	(303,906)	(398,169)	(432,206)
Change in foreign currency translation adjustment	9,864	189	13,548	(487)
Total comprehensive loss	$ (93,513)	$ (303,717)	$ (384,621)	$ (432,693)
Class A Common Stock
Per share information:
Net loss per Common Stock – basic (in dollars per share)	$ (0.30)	$ (1.06)	$ (1.20)	$ (2.12)
Net loss per Common Stock – diluted (in dollars per share)	$ (0.30)	$ (1.06)	$ (1.20)	$ (2.12)
Weighted average Common shares outstanding – basic (in shares)	346,575,508	287,951,929	330,878,677	203,686,758
Weighted average Common shares outstanding – diluted (in shares)	346,575,508	287,951,929	330,878,677	203,686,758
Class B Common Stock
Per share information:
Net loss per Common Stock – basic (in dollars per share)	$ (0.30)	$ (1.06)	$ (1.20)	$ (2.12)
Net loss per Common Stock – diluted (in dollars per share)	$ (0.30)	$ (1.06)	$ (1.20)	$ (2.12)
Weighted average Common shares outstanding – basic (in shares)	346,575,508	287,951,929	330,878,677	203,686,758
Weighted average Common shares outstanding – diluted (in shares)	346,575,508	287,951,929	330,878,677	203,686,758