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Yamana Acquisition - Additional Information (Details)
shares in Millions, $ in Millions
9 Months Ended 12 Months Ended
Mar. 31, 2023
USD ($)
shares
Dec. 31, 2023
USD ($)
Dec. 31, 2023
USD ($)
Disclosure of detailed information about business combination [line items]      
Value of shares issued $ 2,823.0   $ 3,307.9
Pan American | Pan American Shareholders      
Disclosure of detailed information about business combination [line items]      
Ownership percentage 58.00%    
Pan American | Former Yamana Shareholders      
Disclosure of detailed information about business combination [line items]      
Ownership percentage 42.00%    
Yamana      
Disclosure of detailed information about business combination [line items]      
Percentage acquired 100.00%    
Number of shares issued (shares) | shares 153.8    
Cash received $ 259.5    
Revenue of acquiree   $ 916.1 1,198.3
Net earnings of acquiree   $ 6.5 $ 30.6