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Capital risk management and fair value measurements - Fair value estimation (Details) - Not measured at fair value in statement of financial position but for which fair value is disclosed - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Financial liabilities, Carrying value $ 3,531,758 $ 3,510,847
Fair value 3,496,503 3,224,775
Total borrowings    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Financial liabilities, Carrying value 3,531,758 3,510,847
Fair value $ 3,496,503 $ 3,224,775