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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, 2025
USD ($)
shares
May 09, 2025
shares
Dec. 31, 2024
shares
May 20, 2024
shares
May 17, 2024
shares
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2024
USD ($)
shares
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2024
USD ($)
shares
Sep. 29, 2023
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Deferred compensation (in shares) 122,894   125,917         6,166 4,933  
Share-based payment arrangement, expense | $           $ 0.4 $ 0.5 $ 0.8 $ 0.5  
Exercised (in shares)           0 4,375,000 0 4,375,000  
Closing share price (in usd per share) | $ / shares                   $ 34.14
Share-based compensation arrangement by share-based payment award, options, grants since inception (in shares) 900,000         900,000   900,000    
Weighted average remaining contractual life of the Company's outstanding options               4 years 9 months 18 days    
Weighted average remaining contractual life of the Company's exercisable options               4 years 6 months    
Options granted (in shares)               0    
Minimum required percentage of shares granted that will vest               0.90    
Minimum                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Estimated percentage of shares granted that will vest               0.50    
Actual percentage of shares granted that will vest               0.90    
Maximum                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Estimated percentage of shares granted that will vest               1.50    
Actual percentage of shares granted that will vest               1.10    
Common stock                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Due to directors' deferred compensation plan (in shares)               9,189 7,970  
Employee Stock Option                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Expiration period               10 years    
Share-based payment arrangement, expense | $           $ 0.1 $ 0.2 $ 0.3 $ 0.4  
Future expense | $ $ 0.7         0.7   $ 0.7    
Employee Stock Option | Officers                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Award vesting period               4 years    
Restricted Stock                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Share-based payment arrangement, expense | $           0.3 $ 0.1 $ 0.5 $ 0.1  
Future expense | $ 5.3         5.3   $ 5.3    
Restricted stock granted (in shares)               87,400    
Restricted Stock | Officers                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Award vesting period         5 years          
Options granted (in shares)   119,000     117,000          
Restricted Stock | Director                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Award vesting period               3 years    
Restricted Stock | Director | Non-employee                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Options granted (in shares)   16,000                
Restricted stock granted (in shares)       18,000            
Performance Shares                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Future expense | $ $ 4.6         $ 4.6   $ 4.6