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Income Taxes (Income Tax Expense Allocation) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Taxes [Abstract]      
Income tax expense $ 10,539 $ 9,625 $ 12,377
Shareholder's equity $ (1,456) $ 925 $ (8,817)