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License and Collaboration Revenue (Details) - USD ($) $ in Thousands	1 Months Ended			12 Months Ended
	Jan. 31, 2025	Oct. 31, 2024	Aug. 31, 2023	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Oct. 31, 2020
Nature of Business
Revenue				$ 10,000	$ 5,000
BMS Agreement
Nature of Business
Amount of upfront cash payment received			$ 50,000
Maximum amount of payments receivable			79,500
Sales milestone payments receivable			70,000
Amount receivable				1,200	2,000
Amount of reduction to research and development expenses				$ 5,500	$ 6,000
Collaborative Arrangement, Revenue Not from Contract with Customer, Statement of Income or Comprehensive Income [Extensible Enumeration]				Research and Development Expense	Research and Development Expense
Revenue				$ 0	$ 0	$ 50,000
Agreement transaction price			$ 50,000
Novation Agreement
Nature of Business
Amount of upfront cash payment received		$ 5,000
Maximum amount of payments receivable		86,000
Agreement transaction price		$ 5,000
License Agreement with Zai Lab (Hong Kong) Limited
Nature of Business
Amount of upfront cash payment received	$ 10,000
Maximum amount of payments receivable	117,000
Viridian Agreement
Nature of Business
Passthrough obligation	$ 21,000						$ 21,000