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Retirement Plans (Schedule Of Expenses For Retirement, Profit-Sharing Plans, Excess Benefit Plans And Other Similar Plans) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Retirement Plans [Abstract]    
Net (losses)/gains for retirement and profit-sharing plans, excess benefit plans and other similar plans $ 5,359 $ 13,421