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Share Capital and Employee Compensation Plans - Additional Information (Details)
$ / shares in Units, right in Millions, $ in Millions
2 Months Ended 12 Months Ended
Feb. 22, 2019
shares
right
Feb. 19, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
shares
right
$ / shares
Dec. 31, 2024
USD ($)
shares
right
$ / shares
Dec. 31, 2023
shares
right
$ / shares
Dec. 31, 2023
USD ($)
shares
right
Mar. 04, 2024
shares
Disclosure of terms and conditions of share-based payment arrangement [line items]              
Share-based compensation | $       $ 0.4   $ 5.5  
Number of shares authorised (shares)     800,000,000.0 800,000,000.0      
Share repurchase authorized (in shares)             18,232,990
Share repurchase authorized, daily maximum (in shares)             151,485
Share repurchase authorized, daily maximum, percentage of average trading volume in the four calendar weeks preceding date of purchase             25.00%
Common shares repurchased (in shares)       1,720,366   0  
Common shares repurchased, average price per share (in USD per share) | $ / shares       $ 14.16      
Common shares repurchased, consideration | $       $ 24.3      
Ordinary share transactions              
Disclosure of terms and conditions of share-based payment arrangement [line items]              
Common shares repurchased (in shares)   909,012          
Common shares repurchased, average price per share (in USD per share) | $ / shares   $ 22.00          
Common shares repurchased, consideration | $   $ 20.0          
CVRs | Tahoe Resources, Inc              
Disclosure of terms and conditions of share-based payment arrangement [line items]              
Number of CVRs issued | right 313.9            
CVR, expiration term 10 years            
Number of shares issuable (shares) 15,600,000   15,600,000 15,600,000 15,600,000 15,600,000  
Number of CVRs outstanding | right     313.9 313.9 313.9 313.9  
PSUs              
Disclosure of terms and conditions of share-based payment arrangement [line items]              
Share-based compensation | $       $ 6.3   $ 1.5  
Performance period       3 years      
Vesting period       3 years      
Granted (shares)       220,000.0   534,900  
Share price (CAD per share) | $ / shares     $ 31.52   $ 20.21    
RSUs              
Disclosure of terms and conditions of share-based payment arrangement [line items]              
Share-based compensation | $       $ 6.9   $ 2.9  
Performance period       3 years      
Vesting period       3 years      
Granted (shares)       636,700   516,200  
RSUs | First anniversary of grant              
Disclosure of terms and conditions of share-based payment arrangement [line items]              
Award vesting (percent)       33.30%      
RSUs | Second anniversary of grant              
Disclosure of terms and conditions of share-based payment arrangement [line items]              
Award vesting (percent)       33.30%      
RSUs | Third anniversary of grant              
Disclosure of terms and conditions of share-based payment arrangement [line items]              
Award vesting (percent)       33.30%      
DSUs              
Disclosure of terms and conditions of share-based payment arrangement [line items]              
Share-based compensation | $       $ 0.5   $ 0.1  
Granted (shares)       47,500   109,000.0