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Commitments and Contingencies (Details)
$ in Millions
9 Months Ended
Sep. 30, 2025
USD ($)
oz
$ / oz
Guarantor Obligations [Line Items]  
Payments for Legal Settlements $ 7.0
Loss Contingency Settlement Penalty $ 4.0
Gold, Ounces | Forward Contracts  
Guarantor Obligations [Line Items]  
Investment contract weight | oz 69,750
Derivative, average forward price | $ / oz 3,071