Collaboration agreement with AbbVie - Change in deferred revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Deferral of revenue	$ (9,041)	$ 15,982
Recognition of revenue	(9,041)	(14,018)
Collaboration agreement with AbbVie
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Beginning balance	15,982
Deferral of revenue		30,000
Recognition of revenue	(9,041)	(14,018)
Balance at the end of the period	$ 6,941	$ 15,982