Collaboration, Licensing and Other Arrangements - Schedule of Revenue from Collaborations and Services (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services	$ 72,386	$ 48,611	$ 138,649	$ 89,237
United Therapeutics Corporation
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services	51,570	30,230	99,032	53,257
United Therapeutics Corporation | Commercial Supply
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services	25,978	10,933	50,442	22,097
United Therapeutics Corporation | License Agreement
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services		242	347	427
United Therapeutics Corporation | Royalties Arrangement
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services	25,592	19,055	48,243	30,733
Collaborations and services
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services	26,014	11,211	50,862	22,597
Collaborations and services | License and Distribution Agreement | Cipla Ltd
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services	36	36	73	73
Collaborations and services | United Therapeutics Corporation | Commercial Supply Agreement
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services	$ 25,978	10,933	50,442	22,097
Collaborations and services | United Therapeutics Corporation | License Agreement
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue from collaborations and services		$ 242	$ 347	$ 427