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Share-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of options outstanding (in shares) 435,135    
Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted stock units outstanding (in shares) 1,112,295   652,227
Granted (in shares) 730,803 390,284  
Unrecognized compensation cost related to non-vested awards granted $ 46.9    
Weighted-average period to recognize compensation cost (in years) 2 years 1 month 6 days    
Restricted Stock And Restricted Stock Unit (RSU) | Board of Directors      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting periods 1 year    
Market-based Restricted Stock Awards (PSAs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares) 0    
Restricted Stock Awards (RSAs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares) 0    
Unrecognized compensation cost related to non-vested awards granted $ 1.0    
Weighted-average period to recognize compensation cost (in years) 7 months 6 days    
Market-based Restricted Stock Units (PSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted stock units outstanding (in shares) 1,055,092   520,986
Granted (in shares) 598,676    
Weighted-average grant-date fair values of restricted stock awards granted (in dollars per share) $ 38.80 $ 87.17  
Unrecognized compensation cost related to non-vested awards granted $ 30.3    
Weighted-average period to recognize compensation cost (in years) 2 years 2 months 12 days    
Minimum | Restricted Stock And Restricted Stock Unit (RSU) | Senior Staff      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting periods 3 years    
Minimum | Restricted Stock And Restricted Stock Unit (RSU) | Chief Executive Officer      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting periods 3 years    
Minimum | Market-based Restricted Stock Units (PSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting periods 2 years    
Vesting percentage 0.00%    
Maximum | Restricted Stock And Restricted Stock Unit (RSU) | Senior Staff      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting periods 4 years    
Maximum | Restricted Stock And Restricted Stock Unit (RSU) | Chief Executive Officer      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting periods 8 years    
Maximum | Market-based Restricted Stock Units (PSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting periods 3 years    
Vesting percentage 200.00%    
2015 Stock Option Plan | Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted stock units outstanding (in shares) 2,167,387    
2024 Stock Option Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares available for issuance (in shares) 1,903,576