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Income Taxes (Schedule Of Income Tax Expenses And Statutory Federal Income Tax Rate) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Taxes [Abstract]      
Federal computed tax expense at statutory tax rate, amount $ 63,638 $ 61,353 $ 53,923
Federal statutory tax rate, percent 21.00% 21.00% 21.00%
State and local income taxes, amount $ 9,757 $ 12,011 $ 10,885
State and local income taxes, net of federal income tax effect, percent 3.20%    
Excess tax benefits from vesting or settlement of stock compensation awards, amount $ (5,381)    
Excess tax benefits from vesting or settlement of stock compensation awards, percent (1.80%)    
Limitation on executive compensation, amount $ 6,501    
Limitation on executive compensation, percent 2.20%    
Tax-exempt interest income   (766) (459)
Meals and entertainment   57 82
Other net nondeductible (deductible) items   1,281 (49)
Nontaxable or nondeductible items, Other, amount $ (714)    
Nontaxable or nondeductible items, Other, percent (0.20%)    
Other, amount $ 1,023 680 96
Other, percent 0.30%    
Income Tax Expense (Benefit), Total $ 74,824 $ 74,616 $ 64,478
Effective Income Tax Rate Reconciliation, Percent, Total 24.70%    
Tax Jurisdiction of Domicile [Extensible Enumeration] country:US