Investment Securities (Schedule Of Investments Within The Available For Sale Portfolio That Have Unrealized Losses) (Details) (USD $) In Thousands	Sep. 30, 2010
Schedule of Investments [Line Items]
Fair value of temporarily impaired securities, less than 12 months	$ 50,012
Unrealized losses on temporarily impaired securities, less than 12 months	(13)
Fair value of temporarily impaired securities, 12 months or longer
Unrealized losses on temporarily impaired securities, 12 months or longer
Total fair value of temporarily impaired securities	50,012
Total unrealized losses on temporarily impaired securities	(13)
Government Agency Issued Mortgage-Backed Securities MBS [Member]
Schedule of Investments [Line Items]
Fair value of temporarily impaired securities, less than 12 months	50,012
Unrealized losses on temporarily impaired securities, less than 12 months	(13)
Fair value of temporarily impaired securities, 12 months or longer
Unrealized losses on temporarily impaired securities, 12 months or longer
Total fair value of temporarily impaired securities	50,012
Total unrealized losses on temporarily impaired securities	$ (13)

This item represents the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for those securities which are categorized neither as held-to-maturity nor trading securities.

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This item represents the excess of amortized cost basis over fair value of securities in a loss position and which are categorized neither as held-to-maturity nor trading securities.

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This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities.

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This item represents the excess of amortized cost basis over fair value of securities that have been in a loss position for less than twelve months for those securities which are categorized neither as held-to-maturity nor trading securities.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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