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Other (Loss) Gain (Tables)
12 Months Ended
Dec. 31, 2023
Other Gain (Loss) [Abstract]  
Schedule of Other Nonoperating Income (Expense)
For the years ended
December 31, 2023December 31, 2022
Unrealized loss on non-hedging derivatives($0.9)($0.3)
Reduction of obligation to renounce flow-through exploration expenditures0.7 2.7 
Turkish projects care and maintenance and arbitration costs(2.9)(5.0)
Fair value adjustment for sale of silver stream— 2.6 
Fair value adjustment for Milestone Payments (note 18)(13.4)(1.1)
Revision to reclamation for closed sites(3.3)— 
Care and maintenance costs related to the El Chanate mine(0.6)(1.0)
Loss on disposal of assets(1.9)(0.7)
Other(1.5)(2.3)
($23.8)($5.1)