Commitments and Contingencies (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2024
Loss Contingencies [Line Items]
Expense related to 401(k) Plan match contributions		$ 0	$ 0
Loss contingency liability		0
Research and development	[1]	$ 17,903	$ 10,627
Cell Line License Agreement | WuXi Biologics Ireland Limited
Loss Contingencies [Line Items]
Research and development				$ 150
Percent of net sales, royalty payment (less than)				1.00%
Option agreement, termination period		6 months
Option agreement termination period due to breach of contract		60 days
Option agreement termination period due to failure to pay		30 days
Indemnification Agreement
Loss Contingencies [Line Items]
Losses incurred to date		$ 0
Loss contingency liability		$ 0

[1] Includes related party amount of $2,923 and $8,777 for the three months ended March 31, 2026 and March 31, 2025, respectively.