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Segment information - Additional Information (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
USD ($)
segment
Dec. 31, 2023
USD ($)
Disclosure of operating segments [line items]    
Number of reportable segments | segment 5  
Metal sales $ 1,322,581 $ 1,008,501
Turkiye    
Disclosure of operating segments [line items]    
Metal sales 623,389 475,349
Turkiye | One customer    
Disclosure of operating segments [line items]    
Metal sales 419,600 301,700
Canada    
Disclosure of operating segments [line items]    
Metal sales 473,037 346,315
Canada | One customer    
Disclosure of operating segments [line items]    
Metal sales $ 468,200 $ 338,200