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Mine standby costs (Tables)
12 Months Ended
Dec. 31, 2022
Analysis of income and expense [abstract]  
Summary of Mine Standby Costs
December 31, 2022December 31, 2021
Stratoni$24,245 $7,168 
Skouries7,782 5,785 
Other mine standby costs2,340 2,398 
$34,367 $15,351