v3.25.2
Collaborations, Licensing and Other Arrangements - Summary of UT Revenue (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]        
Total revenue from UT $ 76,527 $ 72,386 $ 154,881 $ 138,649
United Therapeutics Corporation        
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]        
Total revenue from UT 53,452 51,570 112,275 99,032
United Therapeutics Corporation | Royalties Arrangement        
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]        
Total revenue from UT 31,228 25,592 61,233 48,243
United Therapeutics Corporation | Commercial Supply        
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]        
Total revenue from UT $ 22,224 $ 25,978 $ 51,042 50,442
United Therapeutics Corporation | License Agreement        
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]        
Total revenue from UT       $ 347