Revenue - Other Collaborative Arrangement Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Collaboration revenue recognized in the period from:
Revenue from collaborative arrangements	$ 6	$ 6	$ 18	$ 187
Viatris
Collaboration revenue recognized in the period from:
Revenue from collaborative arrangements	$ 6	$ 6	$ 18	18
Alfasigma
Collaboration revenue recognized in the period from:
Revenue from collaborative arrangements				$ 169