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Share-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 9 Months Ended
Feb. 28, 2025
Sep. 30, 2025
Sep. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options granted (in shares)     431,000
Weighted average fair value of options granted (in US dollars per share)   $ 9.34 $ 7.36
Aggregate intrinsic value of stock options outstanding   $ 16.7  
Aggregate intrinsic value of stock options exercisable   12.6  
Unrecognized compensation cost   $ 4.1  
Restricted stock awards | 2019 Stock Incentive Plan | Executive Officer      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares issued in period (in shares) 29,500    
Shares issued in period (in dollars per shares) $ 73.34    
Stock option plan, award vesting period 5 years    
Stock option plan, award post vesting hold period 1 year    
Restricted stock vested shares (in shares)   7,200  
Restricted stock non-vested shares (in shares)   54,100  
Restricted stock weighted average fair value of non-vested options (in US dollars per share)   $ 64.29  
Restricted stock awards | 2019 Stock Incentive Plan | Executive Officer | Tranche One      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights, percentage 20.00%    
Restricted stock awards | 2019 Stock Incentive Plan | Executive Officer | Tranche Two      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights, percentage 20.00%    
Restricted stock awards | 2019 Stock Incentive Plan | Executive Officer | Tranche Three      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights, percentage 20.00%    
Restricted stock awards | 2019 Stock Incentive Plan | Executive Officer | Tranche Four      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights, percentage 20.00%    
Restricted stock awards | 2019 Stock Incentive Plan | Executive Officer | Tranche Five      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights, percentage 20.00%    
2019 Stock Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options granted (in shares)   579,500  
Expected To Be Recognized Remainder Of 2025      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost   $ 1.0  
Expected To Be Recognized During 2026      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost   2.0  
Expected To Be Recognized During 2027      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost   0.7  
Expected To Be Recognized During 2028      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost   0.3  
Expected To Be Recognized During 2029      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost   $ 0.1