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Derivatives (Derivative Assets and Liabilities) (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Schedule Of Trading Securities And Other Trading Assets [Line Items]    
Derivative Liabilities $ 1,136 $ 1,712
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]    
Schedule Of Trading Securities And Other Trading Assets [Line Items]    
Derivative Liabilities $ 1,136 $ 1,712