CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Product revenue, net	$ 88,643	$ 71,428
Revenue from Contract with Customer, Product and Service [Extensible Enumeration]	us-gaap:ProductMember	us-gaap:ProductMember
Operating expenses:
Cost of sales	$ 5,945	$ 5,283
Cost of sales - inventory impairment and loss on firm purchase commitments	110,461
Research and development	36,608	24,192
Selling, general and administrative	57,759	44,006
Total operating expenses	210,773	73,481
Loss from operations	(122,130)	(2,053)
Other income, net:
Interest income	4,326	3,718
Other expense, net	(747)	(262)
Total other income, net	3,579	3,456
(Loss) income before income taxes	(118,551)	1,403
Provision (benefit) for income taxes	242	(170)
Net (loss) income	$ (118,793)	$ 1,573
Net (loss) income per share - basic	$ (1.75)	$ 0.02
Net (loss) income per share - diluted	$ (1.75)	$ 0.02
Weighted-average shares used in computing net (loss) income per share-basic	67,854,356	66,717,271
Weighted-average shares used in computing net (loss) income per share-diluted	67,854,356	70,863,665