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License and Collaboration Revenue (Details) - USD ($) $ in Thousands	1 Months Ended			3 Months Ended		6 Months Ended
	Jan. 31, 2025	Oct. 31, 2024	Aug. 31, 2023	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Nature of Business
Revenue						$ 10,000
BMS Agreement
Nature of Business
Amount of upfront cash payment received			$ 50,000
Maximum amount of payments receivable			79,500
Amount of reduction to research and development expenses				$ 1,300	$ 1,200	3,000	$ 2,200
Amount receivable				1,300	1,200	1,300	1,200
Revenue				$ 0	$ 0	$ 0	$ 0
Sales milestone payments receivable			$ 70,000
Novation Agreement
Nature of Business
Amount of upfront cash payment received		$ 5,000
Maximum amount of payments receivable		$ 86,000
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
Agreement transaction price	10,000
Viridian Agreement
Nature of Business
Development milestone expense payable	$ 21,000