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Commitments And Contingencies Commitments and Contingencies (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]          
Off-Balance Sheet, Credit Loss, Liability $ 4,660   $ 4,660   $ 4,190
Provision for credit losses 1,000 $ 3,000 2,500 $ 8,250  
Provision for Credit Losses on Unfunded Commitments $ 955 $ 493 $ 470 $ 1,000