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Securities Available For Sale (Schedule Of Fair Value Of Securities With Continuous Unrealized Losses) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 security | Dec. 31, 2012 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 | $ 209,525 | $ 82,548
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | 334 | 106
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses | 12,445 | 1,589
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value | 58,632 | 4,813
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | 89 | 28
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses | 6,185 | 744
Securities with continuous unrealized losses, Estimated Fair Value | 268,157 | 87,361
Securities with continuous unrealized losses, Number of Investments | 423 | 134
Securities with continuous unrealized losses, Unrealized Losses | 18,630 | 2,333
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 | 111,169 | 56,008
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | 140 | 55
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses | 4,801 | 1,064
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value | 40,563 |
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | 40 |
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses | 3,791 |
Securities with continuous unrealized losses, Estimated Fair Value | 151,732 | 56,008
Securities with continuous unrealized losses, Number of Investments | 180 | 55
Securities with continuous unrealized losses, Unrealized Losses | 8,592 | 1,064
US Government Agency [Member] |  |
Schedule of Available for sale Securities [Line Items] |  |
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value | 36,356 | 15,281
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | 47 | 18
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses | 1,982 | 216
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value | 9,156 | 56
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | 12 | 2
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses | 475 |
Securities with continuous unrealized losses, Estimated Fair Value | 45,512 | 15,337
Securities with continuous unrealized losses, Number of Investments | 59 | 20
Securities with continuous unrealized losses, Unrealized Losses | 2,457 | 216
Private Label Mortgage-Backed Securities [Member] |  |
Schedule of Available for sale Securities [Line Items] |  |
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value | 826 | 783
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | 12 | 6
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses | 61 | 48
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value | 449 | 2,196
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | 7 | 14
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses | 17 | 473
Securities with continuous unrealized losses, Estimated Fair Value | 1,275 | 2,979
Securities with continuous unrealized losses, Number of Investments | 19 | 20
Securities with continuous unrealized losses, Unrealized Losses | 78 | 521
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 | 61,174 | 10,476
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | 135 | 27
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses | 5,601 | 261
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value | 8,464 | 2,561
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | 30 | 12
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses | 1,902 | 271
Securities with continuous unrealized losses, Estimated Fair Value | 69,638 | 13,037
Securities with continuous unrealized losses, Number of Investments | 165 | 39
Securities with continuous unrealized losses, Unrealized Losses | $ 7,503 | $ 532

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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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