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SHORT-TERM BORROWINGS AND LONG-TERM DEBT (Summary Of Short-Term Borrowings) (Details) - USD ($)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Debt Disclosure [Abstract]      
Amount outstanding at December 31, $ 0 $ 5,000,000 $ 0
Average amount outstanding during year 23,322,000 37,211,000 607,000
Highest month-end balance during year $ 100,000,000 $ 140,000,000 $ 6,500,000
Weighted-average interest rate on balances outstanding at December 31, 0.00% 4.60% 0.00%
Weighted-average interest rate during year 4.88% 2.84% 0.30%