v3.25.4
Share-based compensation - Schedule of Shares Outstanding (Details) - $ / shares
6 Months Ended 12 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Weighted Average Exercise Price    
Awards converted upon Spin-offs (in dollars per share) $ 39.60  
Restricted Stock Units (RSUs)    
Number of Units    
Outstanding, beginning of year (in shares)   0
Awards converted upon Spin-off (in shares) 3,055  
Granted (in shares)   118,632
Vested (in shares)   0
Forfeited (in shares)   0
Outstanding, end of period (in shares) 121,687 121,687
Weighted Average Exercise Price    
Outstanding, beginning of year (in dollar per share)   $ 0
Granted (in dollars per share)   48.79
Vested (in dollars per share)   0
Forfeited (in dollars per share)   0
Outstanding, end of period (in dollars per share) $ 48.56 $ 48.56
Performance Shares    
Number of Units    
Outstanding, beginning of year (in shares)   0
Awards converted upon Spin-off (in shares) 329,176  
Granted (in shares)   656,544
Vested (in shares)   (646)
Forfeited (in shares)   (14,035)
Outstanding, end of period (in shares) 971,039 971,039
Weighted Average Exercise Price    
Outstanding, beginning of year (in dollar per share)   $ 0
Awards converted upon Spin-offs (in dollars per share) $ 38.97  
Granted (in dollars per share)   54.77
Vested (in dollars per share)   39.61
Forfeited (in dollars per share)   41.99
Outstanding, end of period (in dollars per share) $ 49.61 $ 49.61
Performance Shares | Minimum    
Weighted Average Exercise Price    
Target performance percentage   100.00%
Performance Shares | Maximum    
Weighted Average Exercise Price    
Target performance percentage   200.00%