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Financial instruments by category - Summary of Carrying Value and Fair Value of Financial Instruments (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of fair value measurement of assets [line items]      
Cash and cash equivalents $ 856,797 $ 540,473 $ 279,735
Other assets 259,350 188,041  
Derivative financial assets 52 9,538  
Deferred consideration 60,000 0  
Accounts payable and accrued liabilities (366,690) (254,030)  
Debt (915,425) (636,059)  
Total liabilities (61,330) (19,122)  
Carrying amount | Level 1      
Disclosure of fair value measurement of assets [line items]      
Cash and cash equivalents 856,797 540,473  
Term deposits 0 1,136  
Restricted cash 2,177 2,085  
Other receivables and deposits 22,626 21,670  
Other assets 0 170  
Marketable securities 166,723 100,794  
Investments in debt securities 5,445 8,004  
Settlement receivable 0 0  
Derivative financial assets 0 0  
Deferred consideration 0 0  
Accounts payable and accrued liabilities (240,912) (202,933)  
Deferred units liability (5,778) (5,254)  
Net financial assets (liabilities) 807,078 466,145  
Carrying amount | Level 1 | Senior Notes due 2029      
Disclosure of fair value measurement of assets [line items]      
Debt 0 0  
Carrying amount | Level 1 | Commercial Loans      
Disclosure of fair value measurement of assets [line items]      
Debt 0 0  
Carrying amount | Level 1 | Greek Recovery and Resilience Facility (RRF)      
Disclosure of fair value measurement of assets [line items]      
Debt 0 0  
Carrying amount | Level 1 | Revolving VAT facility      
Disclosure of fair value measurement of assets [line items]      
Debt 0 0  
Carrying amount | Level 1 | Foreign currency collars      
Disclosure of fair value measurement of assets [line items]      
Derivative financial assets 0 0  
Total liabilities 0 0  
Carrying amount | Level 1 | Euro forward contracts      
Disclosure of fair value measurement of assets [line items]      
Derivative financial assets 0 0  
Total liabilities 0 0  
Carrying amount | Level 1 | Gold collars      
Disclosure of fair value measurement of assets [line items]      
Total liabilities 0 0  
Carrying amount | Level 1 | Gold commodity swaps      
Disclosure of fair value measurement of assets [line items]      
Total liabilities 0 0  
Carrying amount | Level 1 | Copper commodity swaps      
Disclosure of fair value measurement of assets [line items]      
Total liabilities 0 0  
Carrying amount | Level 1 | Interest rate swaps      
Disclosure of fair value measurement of assets [line items]      
Derivative financial assets 0 0  
Total liabilities 0 0  
Carrying amount | Level 1 | Foreign currency forward contracts      
Disclosure of fair value measurement of assets [line items]      
Derivative financial assets 0 0  
Total liabilities 0 0  
Warrants 0 0  
Carrying amount | Level 2      
Disclosure of fair value measurement of assets [line items]      
Cash and cash equivalents 0 0  
Term deposits 0 0  
Restricted cash 0 0  
Other receivables and deposits 0 0  
Other assets 0 0  
Marketable securities 0 0  
Investments in debt securities 0 0  
Settlement receivable 57,832 49,387  
Derivative financial assets 7,575 5,635  
Deferred consideration 60,000 0  
Accounts payable and accrued liabilities 0 0  
Deferred units liability 0 0  
Net financial assets (liabilities) (858,871) (596,256)  
Carrying amount | Level 2 | Senior Notes due 2029      
Disclosure of fair value measurement of assets [line items]      
Debt (498,578) (498,326)  
Carrying amount | Level 2 | Commercial Loans      
Disclosure of fair value measurement of assets [line items]      
Debt (293,550) (100,890)  
Carrying amount | Level 2 | Greek Recovery and Resilience Facility (RRF)      
Disclosure of fair value measurement of assets [line items]      
Debt (119,935) (39,209)  
Carrying amount | Level 2 | Revolving VAT facility      
Disclosure of fair value measurement of assets [line items]      
Debt (10,937) (3,269)  
Carrying amount | Level 2 | Foreign currency collars      
Disclosure of fair value measurement of assets [line items]      
Derivative financial assets 0 1,338  
Total liabilities (194) 0  
Carrying amount | Level 2 | Euro forward contracts      
Disclosure of fair value measurement of assets [line items]      
Derivative financial assets 0 1,513  
Total liabilities (2,353) (35)  
Carrying amount | Level 2 | Gold collars      
Disclosure of fair value measurement of assets [line items]      
Total liabilities (20,465) (3,026)  
Carrying amount | Level 2 | Gold commodity swaps      
Disclosure of fair value measurement of assets [line items]      
Total liabilities (18,149) (2,966)  
Carrying amount | Level 2 | Copper commodity swaps      
Disclosure of fair value measurement of assets [line items]      
Total liabilities (3,165) (1,032)  
Carrying amount | Level 2 | Interest rate swaps      
Disclosure of fair value measurement of assets [line items]      
Derivative financial assets 0 458  
Total liabilities (12,167) (12,063)  
Carrying amount | Level 2 | Foreign currency forward contracts      
Disclosure of fair value measurement of assets [line items]      
Derivative financial assets 0 6,229  
Total liabilities (4,837) 0  
Warrants 52 0  
At fair value      
Disclosure of fair value measurement of assets [line items]      
Cash and cash equivalents 856,797 540,473  
Term deposits 0 1,136  
Restricted cash 2,177 2,085  
Other receivables and deposits 22,626 21,670  
Other assets 0 170  
Marketable securities 166,723 100,794  
Investments in debt securities 5,445 8,004  
Settlement receivable 57,832 49,387  
Derivative financial assets 7,575 5,635  
Deferred consideration 60,000 0  
Accounts payable and accrued liabilities (240,912) (202,933)  
Deferred units liability (5,778) (5,254)  
Net financial assets (liabilities) (44,565) (103,385)  
At fair value | Senior Notes due 2029      
Disclosure of fair value measurement of assets [line items]      
Debt (491,350) (471,600)  
At fair value | Commercial Loans      
Disclosure of fair value measurement of assets [line items]      
Debt (293,550) (100,890)  
At fair value | Greek Recovery and Resilience Facility (RRF)      
Disclosure of fair value measurement of assets [line items]      
Debt (119,935) (39,209)  
At fair value | Revolving VAT facility      
Disclosure of fair value measurement of assets [line items]      
Debt (10,937) (3,269)  
At fair value | Foreign currency collars      
Disclosure of fair value measurement of assets [line items]      
Derivative financial assets 0 1,338  
Total liabilities (194) 0  
At fair value | Euro forward contracts      
Disclosure of fair value measurement of assets [line items]      
Derivative financial assets 0 1,513  
Total liabilities (2,353) (35)  
At fair value | Gold collars      
Disclosure of fair value measurement of assets [line items]      
Total liabilities (20,465) (3,026)  
At fair value | Gold commodity swaps      
Disclosure of fair value measurement of assets [line items]      
Total liabilities (18,149) (2,966)  
At fair value | Copper commodity swaps      
Disclosure of fair value measurement of assets [line items]      
Total liabilities (3,165) (1,032)  
At fair value | Interest rate swaps      
Disclosure of fair value measurement of assets [line items]      
Derivative financial assets 0 458  
Total liabilities (12,167) (12,063)  
At fair value | Foreign currency forward contracts      
Disclosure of fair value measurement of assets [line items]      
Derivative financial assets 0 6,229  
Total liabilities (4,837) 0  
Warrants $ 52 $ 0