Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Collaboration revenue		$ 47,072	$ 78,592	$ 46,826
Revenue from Contract with Customer, Product and Service [Extensible List]		Collaboration Revenues From Related Party [Member]	Collaboration Revenues From Related Party [Member]	Collaboration Revenues From Related Party [Member]
Operating expenses:
Research and development		$ 240,248	$ 189,081	$ 164,248
General and administrative	[1]	63,534	55,041	43,834
Impairment of long-lived assets		4,925	0	0
Total operating expenses		308,707	244,122	208,082
Loss from operations		(261,635)	(165,530)	(161,256)
Other income (expense):
Interest and other income		38,026	18,764	6,624
Interest and other expense		(249)	(196)	(176)
Total other income		37,777	18,568	6,448
Net loss		(223,858)	(146,962)	(154,808)
Other comprehensive loss:
Unrealized (loss) gain on marketable securities		(933)	4,397	(4,289)
Total comprehensive loss		(224,791)	(142,565)	(159,097)
Reconciliation of net loss to net loss attributable to common stockholders:
Net Income (Loss)		(223,858)	(146,962)	(154,808)
Net loss attributable to common stockholders		$ (223,858)	$ (146,962)	$ (154,808)
Net loss per share, basic		$ (2.98)	$ (2.52)	$ (2.87)
Net loss per share, diluted		$ (2.98)	$ (2.52)	$ (2.87)
Weighted average common shares outstanding, diluted		75,043,991	58,365,499	53,933,229
Weighted average common shares outstanding, basic		75,043,991	58,365,499	53,933,229

[1] General and administrative expense for the years ended December 31, 2024, 2023 and 2022 is inclusive of $27.2 million, $21.6 million, and $17.5 million of stock-based compensation expense, respectively.