v3.26.1
Tax matters - Significant components of deferred tax assets and liabilities (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets $ 45,600 $ 38,550
Deferred tax liabilities (56,605) (51,599)
Offset between deferred tax assets 45,600 31,970
Offset between deferred tax liabilities 45,600 31,970
Total deferred tax assets due to temporary differences recognized in the statement of financial position   6,580
Total deferred tax liabilities due to temporary differences recognized in the statement of financial position (11,005) (19,629)
Total 819,162 797,320
Temporary differences taxes $ 7,030 107,168
Number of years open to review 4 years  
Spain    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total $ 281,836 270,158
USA    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 236,955 236,589
UK    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 238,802 198,459
Other    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 61,569 92,114
Unused tax losses    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 710,984 673,246
Unused tax losses | Spain    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 216,787 200,087
Unused tax losses | USA    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 236,955 236,589
Unused tax losses | UK    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 185,920 153,622
Unused tax losses | Other    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 71,322 82,948
Unrecognized deductible temporary differences    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 108,178 124,074
Unrecognized deductible temporary differences | Spain    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 65,049 70,071
Unrecognized deductible temporary differences | UK    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total 52,882 44,837
Unrecognized deductible temporary differences | Other    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Total $ (9,753) $ 9,166