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Debt - Summary of debt (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure of financial liabilities [line items]      
Derivative financial assets $ (9,538) $ 0  
Borrowings 636,059 494,414  
Senior Notes due 2029      
Disclosure of financial liabilities [line items]      
Borrowings, net of option derivative asset 498,326 498,090  
Borrowings 492,691 494,414 $ 489,763
Redemption option derivative asset      
Disclosure of financial liabilities [line items]      
Derivative financial assets (5,635) (3,676)  
Term Facility Commercial Loans      
Disclosure of financial liabilities [line items]      
Borrowings 100,890 0  
Borrowing unamortized transaction fees 15,490    
Greek Recovery and Resilience Facility (RRF)      
Disclosure of financial liabilities [line items]      
Borrowings 39,209 0  
Borrowing unamortized transaction fees 6,037    
Revolving VAT facility      
Disclosure of financial liabilities [line items]      
Borrowings 3,269 0  
Unamortized transaction costs | Senior Notes due 2029      
Disclosure of financial liabilities [line items]      
Borrowings 5,325 $ 6,077  
Initial redemption option | Senior Notes due 2029      
Disclosure of financial liabilities [line items]      
Borrowings $ 3,652