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Investments (Aggregate Carrying And Approximate Market Values Of Held-To-Maturity Securities) (Details) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2013 | Dec. 31, 2012
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Schedule of Held-to-maturity Securities [Line Items] |  |
Securities held-to-maturity, Amortized Cost | $ 4,293 | $ 13,454
Securities held-to-maturity, Gross Unrealized Gains | 1,658 | 465
Securities held-to-maturity, Gross Unrealized Losses | 0 | 58
Securities held-to-maturity, Estimated Fair Value | 5,951 | 13,861
Trust Preferred Securities [Member] |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Securities held-to-maturity, Amortized Cost | 4,293 | 13,454
Securities held-to-maturity, Gross Unrealized Gains | 1,658 | 465
Securities held-to-maturity, Gross Unrealized Losses | 0 | 58
Securities held-to-maturity, Estimated Fair Value | 5,951 | 13,861
Other Investment Securities [Member] |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Securities held-to-maturity, Amortized Cost | 13,344 | 11,463
Securities held-to-maturity, Gross Unrealized Gains | 0 | 0
Securities held-to-maturity, Gross Unrealized Losses | 0 | 0
Securities held-to-maturity, Estimated Fair Value | 13,344 | 11,463
Non-Marketable Equity Securities [Member] |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Securities held-to-maturity, Amortized Cost | 13,344 | 11,463
Securities held-to-maturity, Gross Unrealized Gains | 0 | 0
Securities held-to-maturity, Gross Unrealized Losses | 0 | 0
Securities held-to-maturity, Estimated Fair Value | $ 13,344 | $ 11,463

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- Definition For an unclassified balance sheet, this item represents investments in debt securities which are categorized as held-to-maturity. The held-to-maturity category is for those securities that the entity has the positive intent and ability to hold until maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. 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