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Income Taxes Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Current Income Tax Expense (Benefit) [Abstract]                      
Current federal tax expense                 $ 2,839 $ 5,881 $ 4,235
Current state tax expense                 425 1,338 1,459
Current tax expense                 3,264 7,219 5,694
Deferred Income Tax Expense (Benefit) [Abstract]                      
Deferred federal tax expense (benefit)                 (1,000) 1,036 1,299
Deferred state tax expense (benefit)                 (108) 122 90
Deferred tax (benefit) expense                 (1,108) 1,158 1,389
Total income tax expense $ (1,199) $ 3,020 $ (1,621) $ (2,356) $ (2,185) $ (2,060) $ (1,962) $ (2,170) $ 2,156 $ 8,377 $ 7,083