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Stock Options And Restricted Stock Awards (Summary of Stock Option Activity) (Details) - Employee Stock Option - $ / shares
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Options, Outstanding, beginning of period shares 455,000 468,000
Options, Granted shares 0 0
Options, Exercised shares (49,000)  
Options, Outstanding, end of period shares 406,000 455,000
Options, Exercisable, end of period shares 381,000  
Weighted Average Exercise Price, Outstanding, beginning of period $ 46.33  
Weighted Average Exercise Price, Exercised 69.55  
Weighted Average Exercise Price, Outstanding, end of period 43.51 $ 46.33
Weighted Average Exercise Price, Exercisable, end of period $ 40.55  
Weighted Average Remaining Contractual Term, Outstanding 3 years 2 months 12 days 4 years 3 months 18 days
Weighted Average Remaining Contractual Term, Exercisable 3 years