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Income Taxes Income Taxes (Provision of Income Taxes from Continuing Operations) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Current: |  |  |
U. S. federal provision | $ 6,425 | $ 6,609 | $ 9,840
State provision | 815 | 1,195 | 862
Total current provision | 7,240 | 7,804 | 10,702
Deferred: |  |  |
U. S. federal provision (benefit) | (12,881) | 3,475 | 1,928
State provision | 1,230 | 1,381 | 1,107
Total deferred provision (benefit) | (11,651) | 4,856 | 3,035
Total income tax provision (benefit) | $ (4,411) | $ 12,660 | $ 13,737

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