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Equity Based Plans, Stock Incentive Plans (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Amended 2003 Plan [Member]      
Share-based Compensation [Abstract]      
Number of common shares available for grant (in shares) 400,000    
Equity Incentive Plan [Member]      
Share-based Compensation [Abstract]      
Stock-based compensation expense $ 7.8 $ 7.2 $ 7.3
Compensation not yet recognized $ 10.4    
Weighted average period 2 years 4 months 17 days    
Maximum [Member] | Amended 1999 Plan [Member] | Non Qualified Stock Options [Member]      
Share-based Compensation [Abstract]      
Number of shares authorized (in shares) 600,000    
Maximum [Member] | Amended 2003 Plan [Member] | Non Qualified Stock Options [Member]      
Share-based Compensation [Abstract]      
Number of shares authorized (in shares) 2,600,000