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Loans And Allowance For Loan Losses (Investment In Impaired Loans) (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Loans And Allowance For Loan Losses [Abstract]    
Non-accrual loans $ 13,640 $ 14,283
Restructured loans (accruing) 65,900 50,249
Total impaired loans $ 79,540 $ 64,532