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Significant agreements - Novartis Collaboration Agreement - Accounting Analysis (Details) - Novartis $ in Thousands		1 Months Ended
	Mar. 27, 2023 USD ($) item	Nov. 30, 2024 USD ($)
Significant agreements.
Transaction price	$ 50,000	$ 53,000
Amount of estimate of variable consideration		$ 3,000
Two combined performance obligations for the first and second targets comprised of the Novartis Research License and the related research and development services during the research term for the first and second targets
Significant agreements.
Combined performance obligations | item	2
Transaction price	$ 18,008
Two material rights associated with limited substitution rights
Significant agreements.
Number of material rights | item	2
Transaction price	$ 2,466
Two material rights associated with options to progress development candidates incorporating radionuclides
Significant agreements.
Number of material rights | item	2
Transaction price	$ 19,684
Two material rights associated with options to progress development candidates not incorporating radionuclides
Significant agreements.
Number of material rights | item	2
Transaction price	$ 9,842

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 808
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479402/808-10-50-1

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