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Significant accounting policies - Summary of material subsidiaries (Details)
12 Months Ended
Dec. 31, 2022
Turkiye | Tüprag Metal Madencilik Sanayi ve Ticaret AS ("Tüprag")  
Disclosure of subsidiaries [line items]  
Subsidiary Tüprag Metal Madencilik Sanayi ve Ticaret AS ("Tüprag")
Location Turkiye
Ownership interest 100.00%
Operations and development projects owned Kişladağ MineEfemçukuru Mine
Greece | Hellas Gold SA ("Hellas")  
Disclosure of subsidiaries [line items]  
Subsidiary Hellas Gold Single Member S.A. ("Hellas")
Location Greece
Ownership interest 100.00%
Operations and development projects owned Olympias Mine Stratoni MineSkouries Project
Greece | Thracean Gold Mining SA  
Disclosure of subsidiaries [line items]  
Subsidiary Thracean Gold Mining SA
Location Greece
Ownership interest 100.00%
Operations and development projects owned Perama Hill Project
Greece | Thrace Minerals SA  
Disclosure of subsidiaries [line items]  
Subsidiary Thrace Minerals SA
Location Greece
Ownership interest 100.00%
Operations and development projects owned Sapes Project
Canada | Eldorado Gold (Quebec) Inc.  
Disclosure of subsidiaries [line items]  
Subsidiary Eldorado Gold (Québec) Inc.
Location Canada
Ownership interest 100.00%
Operations and development projects owned Lamaque Operations
Romania | Deva Gold SA ("Deva")  
Disclosure of subsidiaries [line items]  
Subsidiary Deva Gold SA ("Deva") (1)
Location Romania
Ownership interest 80.50%
Operations and development projects owned Certej Project