STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues:
Total revenues	$ 124,456	$ 52,158	$ 10,097
Cost of goods sold:
Total cost of goods sold	17,795	4,117	1,000
Operating expenses:
Research and development	35,536	35,201	91,140
Selling, general and administrative	134,401	76,599	72,303
Total operating expenses	169,937	111,800	163,443
Loss from operations	(63,276)	(63,759)	(154,346)
Interest expense	(4,950)	(3,400)	(4,502)
Non-cash interest expense related to the sale of future royalties	(3,924)	(1,673)	0
Other income, net	6,630	1,633	687
Loss before provision for income taxes	(65,520)	(67,199)	(158,161)
Provision for income taxes	547	8	4
Net loss	$ (66,067)	$ (67,207)	$ (158,165)
Net loss per share of common stock - basic (in dollars per share)	$ (0.30)	$ (0.42)	$ (1.52)
Net loss per share of common stock - diluted (in dollars per share)	$ (0.30)	$ (0.42)	$ (1.52)
Shares used in computing net loss per share - basic (in shares)	219,331,253	158,690,083	104,205,645
Shares used in computing net loss per share - diluted (in shares)	219,331,253	158,690,083	104,205,645
Comprehensive loss:
Net loss	$ (66,067)	$ (67,207)	$ (158,165)
Unrealized gains (losses) on available-for-sale securities	278	(48)	(2)
Comprehensive loss	(65,789)	(67,255)	(158,167)
Product sales, net
Revenues:
Total revenues	82,526	15,600	0
Cost of goods sold:
Total cost of goods sold	2,323	566	0
Licensing revenue
Revenues:
Total revenues	35,809	35,031	5,013
Product supply revenue
Revenues:
Total revenues	6,121	1,527	907
Collaborative development revenue
Revenues:
Total revenues	0	0	4,177
Other cost of revenue
Cost of goods sold:
Total cost of goods sold	$ 15,472	$ 3,551	$ 1,000