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Securities OTTI (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011
Debt Securties Other Than Temporary Impairment Charges [Abstract] |  |  |  |
Other Than Temporary Impairment Charges, Trust preferred securities, Individual Issuers | $ 0 | $ 236 | $ 130 | $ 338
Other-Than-Temporary Impairment Charges included in earnings | 0 | 236 | 130 | 338
Other Than Temporary Impairment On Debt Securities [Abstract] |  |  |  |
Credit Related Other Than Temporary impairement Charges | 0 | 236 | 130 | 338
Non-credit Related Other Than Temporary Impairment Charges | 0 | (80) | 0 | 130
Other Than Temporary Impairment Charges On Debt Securities, Total | $ 0 | $ 156 | $ 130 | $ 468

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