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Income Taxes (Narratives) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Dec. 31, 2014
Income Taxes [Abstract] |  |  |  |  |
Unrecognized Tax Benefits, Interest on Income Taxes Accrued | $ 122 |  | $ 122 |  | $ 470
Interest and Penalties Released Related to Unrecognized Tax Benefits | 200 |  | 200 |  |
Deferred Tax Assets, Net | 143,935 |  | 143,935 |  | 108,708
OtherComprehensiveIncomeLossTax |  |  | 284 |  | 447
Income Tax Expense (Benefit) | 562 | $ 7,998 | 2,310 | $ 30,396 |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued | 2,100 |  | 2,100 |  | 2,600
International Banking Entity [Member] |  |  |  |  |
OtherComprehensiveIncomeLossTax | $ 153 |  |  |  | $ 186
Other Comprehensive Income Loss Reclassification Adjustment From AOCIF or Sale Of Securities Tax |  | $ 11 | $ 33 | $ 158 |
IBE Tax Rate | 0.00% |  |  |  |

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