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CONSOLIDATED FINANCIAL STATEMENT DETAILS - Inventories (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Inventories:    
Ore in stockpiles $ 512.3 $ 469.6
Ore on leach pads 708.5 701.3
In-process 186.9 139.5
Finished metal 19.4 17.3
Materials and supplies 374.5 367.9
Inventories, subtotal 1,801.6 1,695.6
Long-term portion of ore in stockpiles and ore on leach pads (558.4) (542.6)
Total inventories $ 1,243.2 $ 1,153.0