Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Operating expenses:
Research and development	$ 60,630	$ 41,601	$ 155,015	$ 103,855
General and administrative	16,016	15,263	45,527	34,239
Total operating expenses	76,646	56,864	200,542	138,094
Loss from operations	(76,646)	(56,864)	(200,542)	(138,094)
Other income (expense):
Interest income	4,209	3,838	15,845	10,965
Other expense, net	(57)	(1)	(93)	(66)
Total other income	4,152	3,837	15,752	10,899
Net loss before income taxes	(72,494)	(53,027)	(184,790)	(127,195)
Provision for income taxes	53		178
Net loss	(72,547)	(53,027)	(184,968)	(127,195)
Other comprehensive income (loss):
Unrealized gain on marketable securities	292	137	181	463
Comprehensive loss	$ (72,255)	$ (52,890)	$ (184,787)	$ (126,732)
Net loss per share, basic	$ (0.45)	$ (1.14)	$ (1.16)	$ (3.59)
Net loss per share, diluted	$ (0.45)	$ (1.14)	$ (1.16)	$ (3.59)
Weighted-average shares outstanding, basic	159,576	46,691	158,837	35,428
Weighted-average shares outstanding, diluted	159,576	46,691	158,837	35,428