XML 157 R118.htm IDEA: XBRL DOCUMENT v3.25.0.1
Income Taxes - Additional Information (Details) - USD ($)
$ in Millions
 1 Months Ended 12 Months Ended
Oct. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Income tax expense   $ 46.0 $ 0.2
Deferred income tax recovery   2.4 (3.4)
Deferred tax liability (asset)   477.2 461.2
Mexican tax authorities (the "SAT")      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Payment for income tax settlement, including interest charges $ 45.9    
Payment for income tax settlement, interest charges $ 16.3    
Income tax expense   40.5  
Deferred income tax recovery   5.4  
Tax losses, resource pools and mining tax credits      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Deferred tax liability (asset)   (109.4) (84.6)
Tax Losses      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Deferred tax liability (asset)   (52.0) (34.8)
Tax Losses, expired at end of 2024      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Deferred tax liability (asset)     (0.4)
Resource pools      
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]      
Deferred tax liability (asset)   $ (57.4) $ (49.8)