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Income Taxes Income Taxes (Provision of Income Taxes from Continuing Operations) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Current:      
U. S. federal provision $ 6,609 $ 9,840 $ 1,188
State provision 1,195 862 772
Total current provision 7,804 10,702 1,960
Deferred:      
U. S. federal provision 3,475 1,928 5,117
State provision 1,381 1,107 178
Total deferred provision 4,856 3,035 5,295
Total income tax provision $ 12,660 $ 13,737 $ 7,255