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Income Taxes (Narratives) (Details) (USD $)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Income Taxes [Abstract]          
Unrecognized Tax Benefits, Interest on Income Taxes Accrued $ 2,600,000   $ 2,600,000   $ 4,000,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued 430,000   430,000   1,200,000
Additional income tax contingency 1,000,000   1,000,000    
Statement [Line Items]          
OtherComprehensiveIncomeLossTax 1,867,000       (831,000)
International Banking Entity [Member]
         
Statement [Line Items]          
OtherComprehensiveIncomeLossTax 198,000       356,000
Other Comprehensive Income Loss Reclassification Adjustment From AOCIF or Sale Of Securities Tax $ 11,000 $ 36,000 $ 158,000 $ 126,000  
IBE Tax Rate     0.00%