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Significant accounting policies - Summary of material subsidiaries (Details) | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2021 | Apr. 07, 2021 | May 11, 2020
Deva Gold SA ("Deva") |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |
Ownership interest | 80.50% |  |  |
Turkey | Tüprag Metal Madencilik Sanayi ve Ticaret AS ("Tüprag") |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |
Subsidiary |  | Tüprag Metal Madencilik Sanayi ve Ticaret AS ("Tüprag") |  |
Location |  | Turkey |  |
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 SA ("Hellas") (1) |  |
Location |  | Greece |  |
Ownership interest |  | 100.00% |  |
Operations and development projects owned |  | Olympias Mine Stratoni MineSkouries Project |  |
Percentage of voting equity interests acquired (as a percent) |  |  |  | 5.00%
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. (2) |  |
Location |  | Canada |  |
Ownership interest |  | 100.00% |  |
Operations and development projects owned |  | Lamaque Operations |  |
Percentage of voting equity interests acquired (as a percent) |  |  | 100.00% |
Romania | Deva Gold SA ("Deva") |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |
Subsidiary |  | Deva Gold SA ("Deva") |  |
Location |  | Romania |  |
Ownership interest |  | 80.50% |  |
Operations and development projects owned |  | Certej Project |  |

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