v3.26.3
Provisions, Movement in Provisions (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Movement in Provisions [Abstract]    
At the beginning of the financial year $ 23,266 $ 20,820
Acquisitions through business combinations 34,840  
Amounts capitalised for changes in underlying costs and estimates 408 2,101
Charged/(credited) to the Consolidated Statement of Profit or Loss [Abstract]    
Changes in underlying costs and estimates 4,735 3,904
Released during the year (2,270)  
Unwinding of discount rate 337 265
Transfers and other movements (819) 59
Utilisation (16,291) (3,883)
At the end of the financial year 44,206 23,266
Employee Benefit [Member]    
Movement in Provisions [Abstract]    
At the beginning of the financial year 3,984 3,953
Acquisitions through business combinations 9,094  
Amounts capitalised for changes in underlying costs and estimates 0 0
Charged/(credited) to the Consolidated Statement of Profit or Loss [Abstract]    
Changes in underlying costs and estimates 4,735 3,904
Released during the year 0  
Unwinding of discount rate 0 0
Transfers and other movements (83) 10
Utilisation (13,465) (3,883)
At the end of the financial year 4,265 3,984
Mine Closure and Rehabilitation [Member]    
Movement in Provisions [Abstract]    
At the beginning of the financial year 19,282 16,867
Acquisitions through business combinations 4,265  
Amounts capitalised for changes in underlying costs and estimates 408 2,101
Charged/(credited) to the Consolidated Statement of Profit or Loss [Abstract]    
Changes in underlying costs and estimates 0 0
Released during the year 0  
Unwinding of discount rate 320 265
Transfers and other movements (736) 49
Utilisation (829) 0
At the end of the financial year 22,710 19,282
Onerous Contracts [Member]    
Movement in Provisions [Abstract]    
At the beginning of the financial year 0 0
Acquisitions through business combinations 21,481  
Amounts capitalised for changes in underlying costs and estimates 0 0
Charged/(credited) to the Consolidated Statement of Profit or Loss [Abstract]    
Changes in underlying costs and estimates 0 0
Released during the year (2,270)  
Unwinding of discount rate 17 0
Transfers and other movements 0 0
Utilisation (1,997) 0
At the end of the financial year $ 17,231 $ 0