v3.26.1
Non-financial assets and liabilities - Summary of Intangible Assets (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Apr. 30, 2026
Dec. 31, 2024
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Changes in intangible assets [abstract]          
Opening net book amount     $ 571,826 $ 575,736  
Additions     2,065 50  
Disposals     (1,360)    
Reclassifications       0  
Exchange differences     19 (1)  
Amortization charge     (6,180) (3,959)  
Closing net book amount     $ 566,370 $ 571,826 $ 575,736
Ordinary shares | Private placement of shares          
Changes in intangible assets [abstract]          
Placement of shares for acquisition of intangible asset (in shares) 1,260,589   1,260,589 0 0
Cost          
Changes in intangible assets [abstract]          
Opening net book amount     $ 651,226    
Closing net book amount     651,949 $ 651,226  
Accumulated amortization          
Changes in intangible assets [abstract]          
Opening net book amount     (17,481)    
Closing net book amount     (23,660) (17,481)  
Accumulated impairment          
Changes in intangible assets [abstract]          
Opening net book amount     (61,919)    
Closing net book amount     (61,919) (61,919)  
Goodwill          
Changes in intangible assets [abstract]          
Opening net book amount     134,453 134,453  
Exchange differences     0 0  
Closing net book amount     134,453 134,453 $ 134,453
Goodwill | Cost          
Changes in intangible assets [abstract]          
Opening net book amount     134,453    
Closing net book amount     134,453 134,453  
Goodwill | Accumulated amortization          
Changes in intangible assets [abstract]          
Opening net book amount     0    
Closing net book amount     0 0  
Goodwill | Accumulated impairment          
Changes in intangible assets [abstract]          
Opening net book amount     0    
Closing net book amount     0 0  
Acquired licenses to patents          
Changes in intangible assets [abstract]          
Opening net book amount     1,655 1,626  
Additions     2,065 50  
Disposals     (1,360)    
Reclassifications       0  
Exchange differences     18 (1)  
Amortization charge     (54) (20)  
Closing net book amount     2,324 1,655 1,626
Acquired licenses to patents | Cost          
Changes in intangible assets [abstract]          
Opening net book amount     3,077    
Closing net book amount     3,800 3,077  
Acquired licenses to patents | Accumulated amortization          
Changes in intangible assets [abstract]          
Opening net book amount     (1,422)    
Closing net book amount     (1,476) (1,422)  
Acquired licenses to patents | Accumulated impairment          
Changes in intangible assets [abstract]          
Opening net book amount     0    
Closing net book amount     0 0  
In-process research and development acquired          
Changes in intangible assets [abstract]          
Opening net book amount     325,081 427,779  
Additions     0 0  
Disposals     0    
Reclassifications     (102,700) (102,698)  
Exchange differences     0 0  
Amortization charge     0 0  
Closing net book amount     325,081 325,081 427,779
In-process research and development acquired | Cost          
Changes in intangible assets [abstract]          
Opening net book amount     387,000    
Closing net book amount     387,000 387,000  
In-process research and development acquired | Accumulated amortization          
Changes in intangible assets [abstract]          
Opening net book amount     0    
Closing net book amount     0 0  
In-process research and development acquired | Accumulated impairment          
Changes in intangible assets [abstract]          
Opening net book amount     (61,919)    
Closing net book amount     (61,919) (61,919)  
Currently marketed products          
Changes in intangible assets [abstract]          
Opening net book amount     110,637 11,878  
Additions     0 0  
Disposals     0    
Reclassifications   $ 102,700 102,700 102,698  
Exchange differences     1 0  
Amortization charge     (6,126) (3,939)  
Closing net book amount     $ 104,512 110,637 $ 11,878
Useful life measured as period of time, intangible assets other than goodwill     21 years    
Currently marketed products | Cost          
Changes in intangible assets [abstract]          
Opening net book amount     $ 126,696    
Closing net book amount     126,696 126,696  
Currently marketed products | Accumulated amortization          
Changes in intangible assets [abstract]          
Opening net book amount     (16,059)    
Closing net book amount     (22,184) (16,059)  
Currently marketed products | Accumulated impairment          
Changes in intangible assets [abstract]          
Opening net book amount     0    
Closing net book amount     $ 0 $ 0