v3.26.1
Share-based Employee Compensation, Stock Option Plans, and Deferred Compensation Plan for Directors - Narrative (Details)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
$ / shares
shares
Dec. 31, 2025
shares
May 17, 2024
Jun. 30, 2026
USD ($)
$ / shares
shares
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2026
USD ($)
$ / shares
shares
Jun. 30, 2025
USD ($)
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share-based payment arrangement, expense       $ 0.6 $ 0.4 $ 1.1 $ 0.8
Exercised (in shares) | shares       8,750 0 8,750 0
Closing share price (in usd per share) | $ / shares $ 37.39     $ 37.39   $ 37.39  
Share-based compensation arrangement by share-based payment award, options, grants since inception (in shares) | shares 800,000     800,000   800,000  
Weighted average remaining contractual life of the Company's outstanding options           4 years 2 months 12 days  
Weighted average remaining contractual life of the Company's exercisable options           4 years 1 month 6 days  
Minimum required percentage of shares granted that will vest (as a percent)           0.90  
Deferred compensation (in shares) | shares 101,689 100,492       4,888 6,166
Common stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Due to directors' deferred compensation plan (in shares) | shares           3,691 9,189
Minimum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Estimated percentage of shares granted that will vest (as a percent)           0.50  
Actual percentage of shares granted that will vest (as a percent)           0.90  
Maximum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Estimated percentage of shares granted that will vest (as a percent)           1.50  
Actual percentage of shares granted that will vest (as a percent)           1.10  
Employee Stock Option              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Expiration period (in years)           10 years  
Share-based payment arrangement, expense       $ 0.1 $ 0.1 $ 0.2 $ 0.3
Future expense $ 0.2     0.2   $ 0.2  
Employee Stock Option | Officers              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period (in years)           4 years  
Weighted average effect of dilutive unvested restricted stock awards              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share-based payment arrangement, expense       0.5 $ 0.3 $ 0.9 $ 0.5
Future expense 7.6     7.6   $ 7.6  
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition           3 years 7 months 6 days  
Weighted average effect of dilutive unvested restricted stock awards | Officers              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period (in years)     5 years        
Weighted average effect of dilutive unvested restricted stock awards | Director              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period (in years)           3 years  
Performance Shares              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Future expense $ 7.4     $ 7.4   $ 7.4