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Securities Available For Sale (Summary Of Fair Value Of Securities With Continuous Unrealized Losses) (Details) $ in Thousands | Jun. 30, 2016 USD ($) security | Dec. 31, 2015 USD ($) security
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Schedule of Available for sale Securities [Line Items] |  |
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value | $ 46,108 | $ 148,059
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | security | 60 | 199
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses | $ 268 | $ 1,880
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value | $ 19,834 | $ 38,756
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | security | 54 | 71
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses | $ 336 | $ 1,161
Securities with continuous unrealized losses, Total, Estimated Fair Value | $ 65,942 | $ 186,815
Securities with continuous unrealized losses, Total, Number of Investments | security | 114 | 270
Securities with continuous unrealized losses, Total, Unrealized Losses | $ 604 | $ 3,041
US Government-Sponsored Enterprises [Member] |  |
Schedule of Available for sale Securities [Line Items] |  |
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value | $ 35,865 | $ 112,770
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | security | 42 | 142
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses | $ 224 | $ 1,342
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value | $ 9,678 | $ 23,646
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | security | 22 | 33
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses | $ 173 | $ 813
Securities with continuous unrealized losses, Total, Estimated Fair Value | $ 45,543 | $ 136,416
Securities with continuous unrealized losses, Total, Number of Investments | security | 64 | 175
Securities with continuous unrealized losses, Total, Unrealized Losses | $ 397 | $ 2,155
US Government Agencies [Member] |  |
Schedule of Available for sale Securities [Line Items] |  |
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value | $ 7,619 | $ 20,201
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | security | 11 | 30
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses | $ 27 | $ 326
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value | $ 4,920 | $ 11,232
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | security | 16 | 22
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses | $ 70 | $ 221
Securities with continuous unrealized losses, Total, Estimated Fair Value | $ 12,539 | $ 31,433
Securities with continuous unrealized losses, Total, Number of Investments | security | 27 | 52
Securities with continuous unrealized losses, Total, Unrealized Losses | $ 97 | $ 547
Private Label [Member] |  |
Schedule of Available for sale Securities [Line Items] |  |
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value | $ 198 | $ 235
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | security | 2 | 2
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses | $ 10 | $ 2
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value | $ 159 | $ 178
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | security | 5 | 5
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses | $ 9 | $ 9
Securities with continuous unrealized losses, Total, Estimated Fair Value | $ 357 | $ 413
Securities with continuous unrealized losses, Total, Number of Investments | security | 7 | 7
Securities with continuous unrealized losses, Total, Unrealized Losses | $ 19 | $ 11
Obligations Of States And Political Subdivisions Thereof [Member] |  |
Schedule of Available for sale Securities [Line Items] |  |
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value | $ 2,426 | $ 14,853
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | security | 5 | 25
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses | $ 7 | $ 210
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value | $ 5,077 | $ 3,700
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | security | 11 | 11
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses | $ 84 | $ 118
Securities with continuous unrealized losses, Total, Estimated Fair Value | $ 7,503 | $ 18,553
Securities with continuous unrealized losses, Total, Number of Investments | security | 16 | 36
Securities with continuous unrealized losses, Total, Unrealized Losses | $ 91 | $ 328

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- Definition Disclosure regarding factors used to determine that the impairment of securities not categorized as either held-to-maturity securities or trading securities (hence equal to available for sale securities) where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the available-for-sale investments determined to be temporarily impaired for less than twelve months. + References No definition available. + Details
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- Definition Disclosure regarding factors used to determine that the impairment of securities not categorized as either held-to-maturity securities or trading securities (hence equal to available for sale securities) where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the available-for-sale investments determined to be temporarily impaired for twelve months or longer. + References No definition available. + Details
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- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 + Details
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