XML 144 R85.htm IDEA: XBRL DOCUMENT v3.25.0.1
Income and mining taxes - Deferred income tax assets and liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
DEFERRED TAX ASSETS    
Deferred income tax asset (in respect of Ontario mining tax, net) $ 8.7 $ 4.9
DEFERRED TAX LIABILITIES    
Deferred income tax liabilities, net 55.6 74.8
CANADA    
DEFERRED TAX ASSETS    
Deferred income tax asset (in respect of Ontario mining tax, net) 8.7 5.0
DEFERRED TAX LIABILITIES    
Deferred income tax liabilities, net 55.6 74.8
CANADA | Mining interests    
DEFERRED TAX ASSETS    
Deferred income tax asset (in respect of Ontario mining tax, net) 1.7 0.0
DEFERRED TAX LIABILITIES    
Deferred income tax liabilities, net 74.9 98.3
CANADA | Derivative financial liabilities    
DEFERRED TAX ASSETS    
Deferred income tax asset (in respect of Ontario mining tax, net) 9.2 6.5
CANADA | Inventory and other    
DEFERRED TAX ASSETS    
Deferred income tax asset (in respect of Ontario mining tax, net) 2.2 1.5
DEFERRED TAX LIABILITIES    
Deferred income tax liabilities, net 8.1 4.2
CANADA | Mining tax credits carry-forward    
DEFERRED TAX LIABILITIES    
Deferred income tax liabilities, net $ 27.4 $ 27.7