v3.26.1
Earnings Per Common Share And Share Awards (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Earnings Per Common Share And Share Awards [Line Items]          
Anti-dilutive shares excluded from computation of diluted earnings per share 0 5 5 5  
Number of SARs granted where exercise price was less than market price on date of grant     0 0  
SARs          
Earnings Per Common Share And Share Awards [Line Items]          
Share-based compensation arrangement by share-based payment award, grants in period, net of forfeitures 5 5 5   5
Share-based compensation arrangement by share-based payment award, grants in period, weighted average grant date fair value     $ 105.00 $ 105.31  
Share-based payment arrangement, expense     $ 237 $ 225  
Share-based payment arrangement, nonvested award, cost not yet recognized, amount $ 467   $ 467    
Maximum | SARs          
Earnings Per Common Share And Share Awards [Line Items]          
Share-based compensation arrangement by share-based payment award, shares purchased for award     250    
SARs expiration period     7 years    
SARs vesting period     5 years