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Segment information - Additional Information (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
USD ($)
segment
Dec. 31, 2021
USD ($)
Disclosure of operating segments [line items]    
Number of reportable segments | segment 5  
Metal sales $ 871,984 $ 940,914
Turkiye    
Disclosure of operating segments [line items]    
Metal sales 398,602 486,069
Turkiye | One customer    
Disclosure of operating segments [line items]    
Metal sales 243,257 319,340
Canada    
Disclosure of operating segments [line items]    
Metal sales 312,962 273,358
Canada | One customer    
Disclosure of operating segments [line items]    
Metal sales 311,056 272,857
TURKEY and GREECE | One customer    
Disclosure of operating segments [line items]    
Metal sales $ 90,650 $ 25,435