Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue:
Total revenues	$ 12,392	$ 71	$ 21,663	$ 3,534
Cost of product revenue	10,955	0	23,895	10,056
Gross margin	1,437	71	(2,232)	(6,522)
Operating expenses:
Selling, general and administrative	40,703	33,402	118,406	106,201
Research and development	45,463	53,149	133,881	194,864
Restructuring expenses	0	(1,699)	0	4,940
Total operating expenses	86,166	84,852	252,287	306,005
Gain from sale of priority review voucher, net	0	0	92,930	0
Income (loss) from operations	(84,729)	(84,781)	(161,589)	(312,527)
Interest income, net	2,454	383	7,958	663
Other income (expense), net	10,544	7,885	30,152	13,061
Income (loss) before income taxes	(71,731)	(76,513)	(123,479)	(298,803)
Income tax (expense) benefit	0	(7)	80	(7)
Net income (loss)	$ (71,731)	$ (76,520)	$ (123,399)	$ (298,810)
Net income (loss) per share - basic (in dollars per share)	$ (0.66)	$ (0.94)	$ (1.15)	$ (3.91)
Net income (loss) per share - diluted (in dollars per share)	$ (0.66)	$ (0.94)	$ (1.15)	$ (3.91)
Weighted-average number of common shares used in computing net income (loss) per share - basic (in shares)	109,098	81,543	106,924	76,361
Weighted-average number of common shares used in computing net income (loss) per share - diluted (in shares)	109,098	81,543	106,924	76,361
Other comprehensive income (loss):
Total other comprehensive income (loss)	$ 137	$ (214)	$ 1,843	$ (1,719)
Comprehensive income (loss)	(71,594)	(76,734)	(121,556)	(300,529)
Product revenue, net
Revenue:
Revenue	12,281	0	21,414	2,739
Other revenue
Revenue:
Revenue	$ 111	$ 71	$ 249	$ 795