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Trade and other receivables (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Allowance for doubtful accounts receivable $ 27,096 $ 29,764
Unbilled revenue    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts receivable balances $ 120,227 $ 112,785