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Summary Of Significant Accounting Policies (Summary Of Supplemental Cash Flow Information) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Summary Of Significant Accounting Policies [Abstract] |  |  |
Interest expense | $ 9,323 | $ 6,826 | $ 7,750
Income taxes | 7,494 | 13,665 | 8,095
Real estate and other assets acquired in settlement of loans | 374 | 394 | 726
Accrued and declared unpaid dividends | 3,185 | 3,177 | 2,981
Increase (decrease) in net unsettled security purchases | (478) | 568 | (51,112)
Securities transferred from available for sale to held to maturity | $ 165,238 | 12,802 | 227,330
Loans transferred from held for sale to held for investment |  | 853 | $ 3,727
Common stock issued for acquisition |  | 5,400 |
Loans and other non-cash assets, excluding goodwill and core deposit intangible asset |  | 1,007 |
Deposits and other liabilities |  | $ 1,112 |

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