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Income Taxes (Narrative) (Details)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]    
Consolidated effective income tax rate including tax expense attributable to prior periods 14.30% 13.90%
Consolidated effective income tax rate, without tax expense attributable to prior periods 10.90% 12.10%