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
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

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

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-Publisher AICPA

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

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-Publisher FASB

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-Number 115

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

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Reference 12: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 9

-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.

+ Details

- Definition

This item represents the aggregate fair value of investments in debt securities as of the balance sheet date and which are categorized as held-to-maturity.

+ References+ Details

- Definition

As of the balance sheet date, the excess of fair value over carrying value (amortized cost) of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding gain.

+ References+ Details

- Definition

As of the balance sheet date, the excess of carrying value (amortized cost) over fair value of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding loss.

+ References+ Details