v3.26.1
Divestment of the Pinaya project (Details) - Pinaya Gold-Copper Disposal Group - USD ($)
3 Months Ended 6 Months Ended 18 Months Ended
Oct. 27, 2027
Apr. 27, 2027
Oct. 27, 2026
Apr. 27, 2026
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Oct. 27, 2027
Disposal Group, Including Discontinued Operations [Line Items]                  
Gain on divestment         $ 8,000,000 $ 0 $ 8,000,000 $ 0  
Disposal Group, Disposed of by Sale, Not Discontinued Operations                  
Disposal Group, Including Discontinued Operations [Line Items]                  
Gross proceeds received on closing       $ 11,000,000.0          
Proceeds from sale of a subsidiary       1,500,000          
Noncash consideration received on sale of subsidiary       $ 3,000,000.0          
Volume weighted average price measurement period (in days)       10 days          
Carrying value of disposal group       $ 0          
Gain on divestment       $ 8,000,000.0          
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Pinaya Gold-Copper Project                  
Disposal Group, Including Discontinued Operations [Line Items]                  
Net smelter return royalty rate       1.00%          
Royalty interest subject to repurchase, percent       50.00%          
Royalty interest subject to repurchase, amount       $ 1,000,000.0          
Disposal Group, Disposed of by Sale, Not Discontinued Operations | At Listing On A Recognized Exchange                  
Disposal Group, Including Discontinued Operations [Line Items]                  
Noncash consideration received on sale of subsidiary       1,500,000          
Disposal Group, Disposed of by Sale, Not Discontinued Operations | 12 Months After Listing On A Recognized Exchange                  
Disposal Group, Including Discontinued Operations [Line Items]                  
Noncash consideration received on sale of subsidiary       $ 1,500,000          
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Forecast                  
Disposal Group, Including Discontinued Operations [Line Items]                  
Proceeds from sale of a subsidiary $ 2,500,000 $ 2,500,000 $ 1,500,000           $ 8,000,000.0