Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating expenses
Selling, general and administrative expenses	$ 60,145	$ 31,281	$ 116,105	$ 79,468
Research and development expenses	19,839	56,890	92,213	225,246
Impairment of fixed assets	74,865		74,865
Amortization of intangible assets		11,111		11,111
Gain on sale			(101,736)
Total operating expenses	154,849	99,282	181,447	315,825
Loss from operations	(154,849)	(99,282)	(181,447)	(315,825)
Other (expense) income
Other (expense) income	(643)	3,467	(144)	(13,788)
Interest income	1,062	9	1,187	396
Loss before income taxes	(154,430)	(95,806)	(180,404)	(329,217)
Net loss	$ (154,430)	$ (95,806)	$ (180,404)	$ (329,217)
Income (loss) per share attributable to common shareholders
Basic (in dollars per share)	$ (0.73)	$ (0.54)	$ (0.89)	$ (1.86)
Weighted-average number of common shares outstanding
Basic (in shares)	211,946	178,761	203,147	176,573
Diluted (in shares)	211,946	178,761	203,147	176,573