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Fair Value Of Assets And Liabilities (Summary Of Differences Between The Fair Value Carrying Amount Of Mortgages Held-For-Sale And Aggregate Unpaid Principal Amount) (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016
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Fair Value Carrying Amount |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Loans held-for-sale | $ 22,220 | $ 24,269
Nonaccrual loans | 6,419 | 6,775
Loans 90 days or more past due and still accruing | 35 | 211
Aggregate Unpaid Principal |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Loans held-for-sale | 31,580 | 35,262
Nonaccrual loans | 11,736 | 12,910
Loans 90 days or more past due and still accruing | 43 | 331
Fair Value Carrying Amount Less Aggregate Unpaid Principal |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Loans held-for-sale | (9,360) | (10,993)
Nonaccrual loans | (5,317) | (6,135)
Loans 90 days or more past due and still accruing | $ (8) | $ (120)

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