v3.26.3
Collaborations, Licensing and Other Arrangements - Summary of UT Revenue (Parenthetical) (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]        
Total revenue from UT $ 101,870 $ 82,130 $ 301,416 $ 237,011
United Therapeutics Corporation        
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]        
Total revenue from UT $ 56,297 $ 59,288 178,953 171,563
United Therapeutics Corporation | Contract Asset        
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]        
Total revenue from UT     $ 33,700 $ 30,000