v3.25.2
Segment Information - Geographic Information (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Revenues from external customers by geographic area        
Total revenues $ 798.6 $ 714.9 $ 1,593.0 $ 1,392.6
Total Tyvaso        
Revenues from external customers by geographic area        
Total revenues 469.6 398.2 935.9 770.7
Tyvaso DPI        
Revenues from external customers by geographic area        
Total revenues 315.2 258.3 617.7 485.8
Nebulized Tyvaso        
Revenues from external customers by geographic area        
Total revenues 154.4 139.9 318.2 284.9
Remodulin        
Revenues from external customers by geographic area        
Total revenues 134.7 147.3 272.9 275.3
Orenitram        
Revenues from external customers by geographic area        
Total revenues 123.9 107.1 244.6 213.3
Unituxin        
Revenues from external customers by geographic area        
Total revenues 58.4 51.7 116.6 110.1
Adcirca        
Revenues from external customers by geographic area        
Total revenues 6.5 5.7 12.5 12.1
Other        
Revenues from external customers by geographic area        
Total revenues 5.5 4.9 10.5 11.1
U.S.        
Revenues from external customers by geographic area        
Total revenues 759.8 675.2 1,509.4 1,316.7
U.S. | Total Tyvaso        
Revenues from external customers by geographic area        
Total revenues 455.3 388.5 896.4 749.7
U.S. | Tyvaso DPI        
Revenues from external customers by geographic area        
Total revenues 314.8 258.3 617.3 485.8
U.S. | Nebulized Tyvaso        
Revenues from external customers by geographic area        
Total revenues 140.5 130.2 279.1 263.9
U.S. | Remodulin        
Revenues from external customers by geographic area        
Total revenues 113.7 122.5 233.9 230.8
U.S. | Orenitram        
Revenues from external customers by geographic area        
Total revenues 123.9 107.1 244.6 213.3
U.S. | Unituxin        
Revenues from external customers by geographic area        
Total revenues 55.4 46.8 112.3 100.2
U.S. | Adcirca        
Revenues from external customers by geographic area        
Total revenues 6.5 5.7 12.5 12.1
U.S. | Other        
Revenues from external customers by geographic area        
Total revenues 5.0 4.6 9.7 10.6
ROW        
Revenues from external customers by geographic area        
Total revenues 38.8 39.7 83.6 75.9
ROW | Total Tyvaso        
Revenues from external customers by geographic area        
Total revenues 14.3 9.7 39.5 21.0
ROW | Tyvaso DPI        
Revenues from external customers by geographic area        
Total revenues 0.4 0.0 0.4 0.0
ROW | Nebulized Tyvaso        
Revenues from external customers by geographic area        
Total revenues 13.9 9.7 39.1 21.0
ROW | Remodulin        
Revenues from external customers by geographic area        
Total revenues 21.0 24.8 39.0 44.5
ROW | Orenitram        
Revenues from external customers by geographic area        
Total revenues 0.0 0.0 0.0 0.0
ROW | Unituxin        
Revenues from external customers by geographic area        
Total revenues 3.0 4.9 4.3 9.9
ROW | Adcirca        
Revenues from external customers by geographic area        
Total revenues 0.0 0.0 0.0 0.0
ROW | Other        
Revenues from external customers by geographic area        
Total revenues $ 0.5 $ 0.3 $ 0.8 $ 0.5