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Hedge Accounting (Narrative) (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]    
Release to earnings $ 241,000  
Designated as Hedging Instrument [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional amount 8,000,000.0 $ 8,000,000.0
Derivative asset $ 0