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Financial instruments - Fair values and risk management - Schedule of cash flow hedges (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure of detailed information about financial instruments [line items]      
Cash flow hedges - recycling into P&L (Note 15) $ (25,749) $ 0 $ 0
Cash flow hedges - effective portion of changes in fair value (Note 15) (6,164) 30,657 9,852
Cash flow hedges      
Disclosure of detailed information about financial instruments [line items]      
Cash flow hedge reserve (1,140) (33,053) $ (2,396)
Cash flow hedges | Interest rate risk      
Disclosure of detailed information about financial instruments [line items]      
Cash flow hedges - recycling into P&L (Note 15) 25,749    
Cash flow hedges - effective portion of changes in fair value (Note 15) (6,164) 29,625  
Cash flow hedges | Interest rate risk | Variable-rate instruments      
Disclosure of detailed information about financial instruments [line items]      
Change in value used for calculating hedge ineffectiveness 6,164 (29,159)  
Cash flow hedges - recycling into P&L (Note 15) 24,717    
Cash flow hedge reserve 1,140 32,021  
Cash flow hedges | Interest rate risk | Cap option      
Disclosure of detailed information about financial instruments [line items]      
Change in value used for calculating hedge ineffectiveness 0 (466)  
Cash flow hedges - recycling into P&L (Note 15) 0    
Cash flow hedge reserve 0 0  
Nominal amount   0  
Carrying amount - Assets   0  
Carrying amount - Liabilities   0  
Cash flow hedges - effective portion of changes in fair value (Note 15)   466  
Hedge ineffectiveness recognized in profit or loss   0  
Cash flow hedges | Interest rate risk | Interest rate swaps      
Disclosure of detailed information about financial instruments [line items]      
Cash flow hedges - recycling into P&L (Note 15) 24,717    
Nominal amount 93,607 518,133  
Carrying amount - Assets 1,286 32,929  
Carrying amount - Liabilities 146 404  
Cash flow hedges - effective portion of changes in fair value (Note 15) (6,164) 29,159  
Hedge ineffectiveness recognized in profit or loss 37 (507)  
Cash flow hedges | Interest rate risk | 1-6 months      
Disclosure of detailed information about financial instruments [line items]      
Net exposure $ (22,916) $ (41,048)  
Average fixed interest rate 3.26% 1.42%  
Cash flow hedges | Interest rate risk | 6-12 months      
Disclosure of detailed information about financial instruments [line items]      
Net exposure $ (18,039) $ (38,879)  
Average fixed interest rate 3.26% 1.41%  
Cash flow hedges | Interest rate risk | More than 1 year      
Disclosure of detailed information about financial instruments [line items]      
Net exposure $ (50,392) $ (167,966)  
Average fixed interest rate 3.26% 1.40%  
Cash flow hedges | Fx rate risk | Fx Euro hedge      
Disclosure of detailed information about financial instruments [line items]      
Change in value used for calculating hedge ineffectiveness $ 0 $ (1,032)  
Cash flow hedges - recycling into P&L (Note 15) 1,032    
Cash flow hedge reserve 0 1,032  
Nominal amount 0 18,398  
Carrying amount - Assets 0 1,032  
Carrying amount - Liabilities 0 0  
Cash flow hedges - effective portion of changes in fair value (Note 15) 0 1,032  
Hedge ineffectiveness recognized in profit or loss $ 0 $ 0