v3.26.3
Earnings per share - Schedule of weighted average number of ordinary shares (Details) - shares
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Earnings per share [line items]      
Beginning of period (in shares) 290,169,769    
Issuance of shares (in shares) 0    
Purchase of treasury shares (in shares) 0    
Withdrawal of treasury shares (in shares) 0    
Transfer of treasury shares (in shares) 0    
End of period (in shares) 290,169,769   290,169,769
Weighted number of shares      
Weighted average number of shares (basic) (in shares) 290,169,769 194,216,835 290,169,769
Issuance of shares (in shares) 0    
Purchase of treasury shares (in shares) 0    
Withdrawal of treasury shares (in shares) 0    
Increase (decrease) in weighted number of shares through transfer of treasury shares (in shares) 0    
Shares issued      
Earnings per share [line items]      
Beginning of period (in shares) 315,977,647    
Issuance of shares (in shares) 0    
Purchase of treasury shares (in shares) 0    
Withdrawal of treasury shares (in shares) 0    
Transfer of treasury shares (in shares) 0    
End of period (in shares) 315,977,647   315,977,647
Treasury shares      
Earnings per share [line items]      
Beginning of period (in shares) 25,807,878    
Issuance of shares (in shares) 0    
Purchase of treasury shares (in shares) 0    
Withdrawal of treasury shares (in shares) 0    
Transfer of treasury shares (in shares) 0    
End of period (in shares) 25,807,878   25,807,878