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Revenue (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers $ 871,461 $ 943,474
Revenue 871,984 940,914
Turkiye    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 398,127 485,755
Revenue 398,602 486,069
Canada    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 312,962 273,358
Revenue 312,962 273,358
Greece    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 160,372 184,361
Revenue 160,420 181,487
Gold revenue - doré    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 551,999 587,941
Gain (loss) on revaluation of derivatives in trade receivables - gold (610) (1,928)
Gold revenue - doré | Turkiye    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 240,452 316,245
Gain (loss) on revaluation of derivatives in trade receivables - gold 475 314
Gold revenue - doré | Canada    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 311,547 271,696
Gain (loss) on revaluation of derivatives in trade receivables - gold 0 0
Gold revenue - doré | Greece    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 0 0
Gain (loss) on revaluation of derivatives in trade receivables - gold (1,085) (2,242)
Gold revenue - concentrate    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 242,759 252,563
Gold revenue - concentrate | Turkiye    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 151,614 162,145
Gold revenue - concentrate | Canada    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 0 0
Gold revenue - concentrate | Greece    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 91,145 90,418
Silver revenue - doré    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 4,219 4,757
Silver revenue - doré | Turkiye    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 2,804 3,095
Silver revenue - doré | Canada    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 1,415 1,662
Silver revenue - doré | Greece    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 0 0
Silver revenue - concentrate    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 23,457 28,568
Silver revenue - concentrate | Turkiye    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 3,257 4,270
Silver revenue - concentrate | Canada    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 0 0
Silver revenue - concentrate | Greece    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 20,200 24,298
Lead concentrate    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 18,659 26,781
Lead concentrate | Turkiye    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 0 0
Lead concentrate | Canada    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 0 0
Lead concentrate | Greece    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 18,659 26,781
Zinc concentrate    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 30,368 42,864
Zinc concentrate | Turkiye    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 0 0
Zinc concentrate | Canada    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 0 0
Zinc concentrate | Greece    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Revenue from contracts with customers 30,368 42,864
Other Metals    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Gain (loss) on revaluation of derivatives in trade receivables - gold 1,133 (632)
Other Metals | Turkiye    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Gain (loss) on revaluation of derivatives in trade receivables - gold 0 0
Other Metals | Canada    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Gain (loss) on revaluation of derivatives in trade receivables - gold 0 0
Other Metals | Greece    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Gain (loss) on revaluation of derivatives in trade receivables - gold $ 1,133 $ (632)