v3.26.1
Collaborations, Licensing and Other Arrangements - Summary of UT Revenue (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]        
Total revenue from UT $ 109,374 $ 76,527 $ 199,544 $ 154,881
United Therapeutics Corporation        
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]        
Total revenue from UT 66,892 53,452 122,655 112,275
United Therapeutics Corporation | License Agreement - Royalties        
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]        
Total revenue from UT 32,370 31,228 65,119 61,233
United Therapeutics Corporation | License Agreement        
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]        
Total revenue from UT 4,923   5,923  
United Therapeutics Corporation | Commercial Supply        
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]        
Total revenue from UT $ 29,599 $ 22,224 $ 51,613 $ 51,042