Annual report pursuant to Section 13 and 15(d)

Income Taxes (Allocation Of Income Tax Expense) (Details)

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Income Taxes (Allocation Of Income Tax Expense) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Taxes [Abstract]      
Continuing operations $ (5,087) $ 665 $ 47,692
Discontinued Operations     61
Income Tax Expense (Benefit), Total $ (5,087) $ 665 $ 47,753