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Income Taxes (Schedule of Components of Income Tax Expense) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]      
Current - Federal $ 12,827 $ 9,149 $ 1,316
- State 1,679 1,436 903
Deferred - Federal 16 3,205 10,104
- State 102 336 1,212
Income tax expense (benefit) $ 14,624 $ 14,126 $ 13,535