Summary of Significant Accounting Policies - Schedule of Significant Expense Categories by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Collaboration revenues	$ 19,632	$ 14,919
Less:
Net loss	(60,477)	(86,879)
Reporting Segment
Segment Reporting Information [Line Items]
Collaboration revenues	19,632	14,919
Less:
Research and development, excluding facilities, personnel, depreciation and amortization expenses	33,147	45,905
General and administrative, excluding facilities and personnel expenses, depreciation and amortization expenses	14,829	19,118
Facilities expense	5,917	7,671
Personnel expense	24,564	27,324
Depreciation, amortization and interest on finance and sale-leaseback lease liabilities	3,894	3,984
Other segment items(a)	(2,242)	(2,204)
Net loss	$ (60,477)	$ (86,879)