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Derivatives (Effects of Derivatives on Consolidated Statements of Income) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Interest Rate Swap | Other Operating Income        
Derivative [Line Items]        
Included in Other Operating Income $ 190 $ 46 $ 675 $ (234)