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RECEIVABLES AND OTHER CURRENT ASSETS (Tables)
12 Months Ended
Dec. 31, 2024
Subclassifications of assets, liabilities and equities [abstract]  
Components of receivables and other current assets
NotesDecember 31,
2024
December 31,
2023
Receivables from governments$26.7 $61.0 
Gold receivables3.1 — 
Other receivables4.9 6.8 
Total receivables34.7 67.8 
Short-term investments1.0 — 
Prepaid expenses13.2 10.6 
Hedge derivatives20(b)(i)— 7.3 
 $48.9 $85.7