Collaboration agreement with AbbVie - Change in deferred revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Deferral of revenue	$ (2,926)	$ (1,029)
Recognition of revenue	(2,926)	(1,029)
Collaboration agreement with AbbVie
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Beginning balance	6,941
Recognition of revenue	(2,926)	$ (1,000)
Balance at the end of the period	$ 4,015