Collaboration agreement with AbbVie - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jan. 31, 2023	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Collaboration revenue		$ 0	$ 0	$ 0	$ 6,941
Collaboration agreement with AbbVie
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Upfront payment	$ 30,000
Performance obligation	$ 30,000
Collaboration revenue					$ 6,900