Restatement - Statement of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating expenses
Research and development	$ 57,808	$ 114,935
Sales and marketing	5,065	6,186
General and administrative	26,513	27,880
Loss on disposal of property and equipment	3,698	0
Change in fair value of earnout liability	2,764	0
Total operating expenses	95,848	149,001
Loss from operations	(95,848)	(149,001)
Change in fair value of notes payable and warrant liabilities	48,135	1,186
Loss on settlement of notes payable	(98,136)	0
Interest expense	(292)	(3,746)
Related party interest expense	0	(622)
Other income (expense), net	1,168	(915)
Loss before income taxes	(144,973)	(153,098)
Income tax provision	0	0
Net loss	(144,973)	(153,098)
Total comprehensive loss:
Net loss	(144,973)	(153,098)
Change in foreign currency translation adjustment	(555)	(564)
Total comprehensive loss	(145,528)	$ (153,662)
As Previously Reported
Operating expenses
Research and development	46,160
Sales and marketing	5,585
General and administrative	27,584
Loss on disposal of property and equipment	3,698
Change in fair value of earnout liability	0
Total operating expenses	83,027
Loss from operations	(83,027)
Change in fair value of notes payable and warrant liabilities	94,917
Loss on settlement of notes payable	(3,021)
Interest expense	(4,651)
Related party interest expense	(140)
Other income (expense), net	2,409
Loss before income taxes	6,487
Income tax provision	0
Net loss	6,487
Total comprehensive loss:
Net loss	6,487
Change in foreign currency translation adjustment	(555)
Total comprehensive loss	5,932
Restatement Impacts
Operating expenses
Research and development	11,648
Sales and marketing	(520)
General and administrative	(1,071)
Loss on disposal of property and equipment	0
Change in fair value of earnout liability	2,764
Total operating expenses	12,821
Loss from operations	(12,821)
Change in fair value of notes payable and warrant liabilities	(46,782)
Loss on settlement of notes payable	(95,115)
Interest expense	4,359
Related party interest expense	140
Other income (expense), net	(1,241)
Loss before income taxes	(151,460)
Income tax provision	0
Net loss	(151,460)
Total comprehensive loss:
Net loss	(151,460)
Change in foreign currency translation adjustment	0
Total comprehensive loss	$ (151,460)
Class A Common Stock
Per share information (Note 15):
Net income (loss) per share of Common Stock attributable to common stockholders - basic (in dollars per share)	$ (0.20)	$ (0.48)
Net income (loss) per share of Common Stock attributable to common stockholders - diluted – diluted (in dollars per share)	$ (0.20)	$ (0.48)
Weighted average shares used in computing net income (loss) per share of Common Stock – basic (in shares)	721,566,030	322,211,392
Weighted average shares used in computing net income (loss) per share of Common Stock – diluted (in shares)	721,566,030	322,211,392
Class A Common Stock | As Previously Reported
Per share information (Note 15):
Net income (loss) per share of Common Stock attributable to common stockholders - basic (in dollars per share)	$ 0.01
Net income (loss) per share of Common Stock attributable to common stockholders - diluted – diluted (in dollars per share)	$ (0.07)
Weighted average shares used in computing net income (loss) per share of Common Stock – basic (in shares)	657,565,442
Weighted average shares used in computing net income (loss) per share of Common Stock – diluted (in shares)	988,638,662
Class A Common Stock | Restatement Impacts
Per share information (Note 15):
Net income (loss) per share of Common Stock attributable to common stockholders - basic (in dollars per share)	$ (0.21)
Net income (loss) per share of Common Stock attributable to common stockholders - diluted – diluted (in dollars per share)	$ (0.13)
Weighted average shares used in computing net income (loss) per share of Common Stock – basic (in shares)	64,000,588
Weighted average shares used in computing net income (loss) per share of Common Stock – diluted (in shares)	(267,072,632)
Class B Common Stock
Per share information (Note 15):
Net income (loss) per share of Common Stock attributable to common stockholders - basic (in dollars per share)	$ (0.20)	$ (0.48)
Net income (loss) per share of Common Stock attributable to common stockholders - diluted – diluted (in dollars per share)	$ (0.20)	$ (0.48)
Weighted average shares used in computing net income (loss) per share of Common Stock – basic (in shares)	721,566,030	322,211,392
Weighted average shares used in computing net income (loss) per share of Common Stock – diluted (in shares)	721,566,030	322,211,392
Class B Common Stock | As Previously Reported
Per share information (Note 15):
Net income (loss) per share of Common Stock attributable to common stockholders - basic (in dollars per share)	$ 0.01
Net income (loss) per share of Common Stock attributable to common stockholders - diluted – diluted (in dollars per share)	$ (0.07)
Weighted average shares used in computing net income (loss) per share of Common Stock – basic (in shares)	657,565,442
Weighted average shares used in computing net income (loss) per share of Common Stock – diluted (in shares)	988,638,662
Class B Common Stock | Restatement Impacts
Per share information (Note 15):
Net income (loss) per share of Common Stock attributable to common stockholders - basic (in dollars per share)	$ (0.21)
Net income (loss) per share of Common Stock attributable to common stockholders - diluted – diluted (in dollars per share)	$ (0.13)
Weighted average shares used in computing net income (loss) per share of Common Stock – basic (in shares)	64,000,588
Weighted average shares used in computing net income (loss) per share of Common Stock – diluted (in shares)	(267,072,632)