NET LOSS PER SHARE - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Numerator:
Net loss	$ (236,234)	$ (267,567)	$ (562,172)	$ (531,022)
Less: revaluation of warrant liability	0	(4,467)	0	(2,907)
Adjusted net loss	$ (236,234)	$ (272,034)	$ (562,172)	$ (533,929)
Denominator:
Weighted average shares outstanding, basic (in shares)	438,416,393	400,219,585	426,382,736	395,691,795
Dilutive effect of common stock issuable from assumed exercise of warrants (in shares)	0	11,084	0	169,081
Weighted average shares outstanding, dilutive (in shares)	438,416,393	400,230,669	426,382,736	395,860,876
Net loss per share:
Basic (in dollars per share)	$ (0.54)	$ (0.67)	$ (1.32)	$ (1.34)
Diluted (in dollars per share)	$ (0.54)	$ (0.68)	$ (1.32)	$ (1.35)