Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Collaboration and other research and development revenues	$ 61	$ 5,336	$ 1,710	$ 18,074
Revenue type	Service [Member]	Service [Member]	Service [Member]	Service [Member]
Operating expenses:
Research and development	$ 47,639	$ 40,512	$ 150,636	$ 108,095
General and administrative	18,088	14,987	55,633	55,198
Total operating expenses	65,727	55,499	206,269	163,293
Operating loss	(65,666)	(50,163)	(204,559)	(145,219)
Other income, net:
Other (expense) income, net	(5)	0	0	(1,590)
Interest income, net	3,530	5,144	12,861	12,464
Total other income, net	3,525	5,144	12,861	10,874
Net loss	$ (62,141)	$ (45,019)	$ (191,698)	$ (134,345)
Net loss per share, basic (in dollars per share)	$ (0.75)	$ (0.55)	$ (2.33)	$ (1.81)
Net loss per share, diluted (in dollars per share)	$ (0.75)	$ (0.55)	$ (2.33)	$ (1.81)
Weighted-average common shares outstanding, basic (in shares)	82,485,199	81,648,250	82,245,679	74,029,645
Weighted-average common shares outstanding, diluted (in shares)	82,485,199	81,648,250	82,245,679	74,029,645

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.