Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Revenues	$ 0	$ 0	$ 0	$ 0
Operating expenses:
Research and development	22,785	18,379	70,657	43,304
General and administrative	13,771	8,886	34,026	28,238
Total operating expenses	36,556	27,265	104,683	71,542
Loss from operations	(36,556)	(27,265)	(104,683)	(71,542)
Other income (expense):
Amortization of financing costs	(24)	(2)	(70)	(62)
Interest income, net	11,531	4,733	30,096	10,314
Realized gain on investments, net	109	0	111	0
Total other income, net	11,616	4,731	30,137	10,252
Net loss	(24,940)	(22,534)	(74,546)	(61,290)
Other comprehensive loss, net of tax:
Unrealized gain on securities	3,902	221	2,079	305
Foreign currency translation gain (loss)	2	(86)	(58)	(108)
Comprehensive loss	$ (21,036)	$ (22,399)	$ (72,525)	$ (61,093)
Basic net loss per common share	$ (0.22)	$ (0.23)	$ (0.69)	$ (0.66)
Diluted net loss per common share	$ (0.22)	$ (0.23)	$ (0.69)	$ (0.66)
Weighted-average shares used to compute basic net loss per share	110,910,704	99,845,733	108,262,427	92,481,155
Weighted-average shares used to compute diluted net loss per share	110,910,704	99,845,733	108,262,427	92,481,155