Consolidated Statements of Operations and Comprehensive Loss - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Collaboration revenue	$ 22,602,000	$ 34,155,000
Operating expenses:
Research and development	94,528,000	109,689,000
General and administrative	28,359,000	32,372,000
Impairment of long-lived assets	2,398,000	0
Total operating expenses	125,285,000	142,061,000
Loss from operations	(102,683,000)	(107,906,000)
Other income, net:
Interest income	11,900,000	10,875,000
Other income, net	4,163,000	2,831,000
Total other income, net	16,063,000	13,706,000
Loss before income taxes	(86,620,000)	(94,200,000)
Provision for income taxes	0	(4,226,000)
Net loss	$ (86,620,000)	$ (98,426,000)
Net loss per share attributable to common stockholders—basic (in dollars per share)	$ (1.58)	$ (2.34)
Net loss per share attributable to common stockholders—diluted (in dollars per share)	$ (1.58)	$ (2.34)
Weighted average common shares outstanding—basic (in shares)	54,899,432	41,974,484
Weighted average common shares outstanding—diluted (in shares)	54,899,432	41,974,484
Comprehensive loss:
Net loss	$ (86,620,000)	$ (98,426,000)
Other comprehensive gain:
Unrealized gains on marketable securities	961,000	3,160,000
Total other comprehensive gain	961,000	3,160,000
Total comprehensive loss	$ (85,659,000)	$ (95,266,000)
Revenue from Contract with Customer, Product and Service [Extensible Enumeration]	Collaboration Revenue [Member]	Collaboration Revenue [Member]