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Investments (Aggregate Carrying And Approximate Market Values Of Available-For-Sale Securities) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | $ 351,825 | $ 355,771
Securities available-for-sale, Gross Unrealized Gains | 5,756 | 7,091
Securities available-for-sale, Gross Unrealized Losses | 7,641 | 10,202
Investment securities available for sale, at fair value | 349,940 | 352,660
U.S Treasuries and U.S. Government Agencies [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 2,175 | 2,317
Securities available-for-sale, Gross Unrealized Gains | 38 | 48
Securities available-for-sale, Gross Unrealized Losses | 0 | 0
Investment securities available for sale, at fair value | 2,213 | 2,365
Obligations Of States And Political Subdivisions [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 39,061 | 41,027
Securities available-for-sale, Gross Unrealized Gains | 787 | 627
Securities available-for-sale, Gross Unrealized Losses | 55 | 106
Investment securities available for sale, at fair value | 39,793 | 41,548
U.S. Government Agencies Mortgage-backed Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 283,439 | 282,653
Securities available-for-sale, Gross Unrealized Gains | 2,936 | 2,765
Securities available-for-sale, Gross Unrealized Losses | 4,872 | 7,310
Investment securities available for sale, at fair value | 281,503 | 278,108
Private Label [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 2,101 | 2,184
Securities available-for-sale, Gross Unrealized Gains | 17 | 16
Securities available-for-sale, Gross Unrealized Losses | 0 | 3
Investment securities available for sale, at fair value | 2,118 | 2,197
Trust Preferred Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 10,444 | 12,943
Securities available-for-sale, Gross Unrealized Gains | 10 | 2,113
Securities available-for-sale, Gross Unrealized Losses | 2,115 | 1,900
Investment securities available for sale, at fair value | 8,339 | 13,156
Corporate Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 9,792 | 9,788
Securities available-for-sale, Gross Unrealized Gains | 236 | 183
Securities available-for-sale, Gross Unrealized Losses | 567 | 843
Investment securities available for sale, at fair value | 9,461 | 9,128
Debt Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 347,012 | 350,912
Securities available-for-sale, Gross Unrealized Gains | 4,024 | 5,752
Securities available-for-sale, Gross Unrealized Losses | 7,609 | 10,162
Investment securities available for sale, at fair value | 343,427 | 346,502
Marketable Equity Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 3,288 | 3,334
Securities available-for-sale, Gross Unrealized Gains | 1,732 | 1,339
Securities available-for-sale, Gross Unrealized Losses | 0 | 0
Investment securities available for sale, at fair value | 5,020 | 4,673
Investment Funds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Securities available-for-sale, Amortized Cost | 1,525 | 1,525
Securities available-for-sale, Gross Unrealized Gains | 0 | 0
Securities available-for-sale, Gross Unrealized Losses | 32 | 40
Investment securities available for sale, at fair value | $ 1,493 | $ 1,485

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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 + Details
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