Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating expenses:
Research and development	$ 476,644	$ 332,341	$ 169,451
Acquired manufacturing rights (Note 7)	0	75,000	22,995
General and administrative	92,902	60,700	39,810
Total operating expenses	569,546	468,041	232,256
Loss from operations	(569,546)	(468,041)	(232,256)
Other income (expense), net:
Interest expense	0	0	(2)
Interest income	109,994	62,907	8,356
Other income (expense)	(4,375)	2,868	417
Total other income, net	105,619	65,775	8,771
Net loss	$ (463,927)	$ (402,266)	$ (223,485)
Net loss per share, basic (in dollars per share)	$ (3.80)	$ (4.14)	$ (3.44)
Net loss per share, diluted (in dollars per share)	$ (3.80)	$ (4.14)	$ (3.44)
Weighted-average shares outstanding, basic (in shares)	121,997,348	97,157,690	64,877,988
Weighted-average shares outstanding, diluted (in shares)	121,997,348	97,157,690	64,877,988