Collaboration, Licensing and Other Arrangements - Schedule of Revenue from Collaborations and Services (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services	$ 70,079	$ 51,253	$ 208,728	$ 140,490
United Therapeutics Corporation
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services	50,314	33,289	149,346	86,546
United Therapeutics Corporation | Commercial Supply
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services	23,231	12,800	73,673	34,897
United Therapeutics Corporation | License Agreement
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services		271	347	698
United Therapeutics Corporation | Royalties Arrangement
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services	27,083	20,218	75,326	50,951
Collaborations and services
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services	23,268	13,108	74,130	35,705
Collaborations and services | License and Distribution Agreement | Cipla Ltd
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services	37	37	110	110
Collaborations and services | United Therapeutics Corporation | Commercial Supply Agreement
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services	$ 23,231	12,800	73,673	34,897
Collaborations and services | United Therapeutics Corporation | License Agreement
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services		$ 271	$ 347	$ 698