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Securities (Rollforward Of The Credit Losses Recognized In Earnings) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
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Jun. 30, 2011
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Jun. 30, 2011
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Jun. 30, 2012
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Mar. 31, 2012
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Dec. 31, 2011
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| Securities [Abstract] | |||||
| Beginning balance | $ 20,754 | $ 20,362 | $ 20,597 | $ 20,597 | $ 20,597 |
| Amounts related to credit loss for which an other-than-temporary impairment was not previously recognized | |||||
| Amounts realized for securities sold during the period | |||||
| Amounts related to securities for which the company intends to sell or that it will be more likely than not that the company will be required to sell prior to recovery of amortized cost basis | |||||
| Reductions for increase in cash flows expected to be collected that are recognized over the remaining life of the security | |||||
| Increases to the amount related to the credit loss for which other-than-temporary was previously recognized | 107 | 499 | |||
| Ending balance | $ 20,861 | $ 20,861 | $ 20,597 | $ 20,597 | $ 20,597 |