v3.26.1
Supplementary Cash Flow Information - Schedule of Supplementary Cash Flow Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Schedule Of Supplementary Cash Flow Information Abstract      
Trade and other receivables $ (4,530) $ 1,749  
Inventories (825) (661)  
Prepaids and deposits (2,702) 686  
Accounts payable and accrued liabilities 17,015 2,898  
Deposits received 12,862 2,974  
Due from a related party 396 58  
Changes in non-cash operating working capital: (21,424) (7,588)  
Environmental rehabilitation expenditure paid from reclamation deposit (1,131)    
Acquisition of Adventus paid by equity securities   176,265  
Additions of plant and equipment included in accounts payable and accrued liabilities (3,103) 3,254  
Capital expenditures of mineral rights and properties included in accounts payable and accrued liabilities 941 (3,499)  
Cash on hand and at bank 132,731 236,457  
Bank term deposits and short-term money market investments 289,258 127,521  
Total cash and cash equivalents $ 421,989 $ 363,978 $ 152,942