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Income Taxes (Schedule of Income Tax Expense) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Current: |  |  |  |  |  |  |  |  |  |  |
Federal |  |  |  |  |  |  |  |  | $ 11,876 | $ 14,102 | $ 14,529
State |  |  |  |  |  |  |  |  | 1,241 | 1,206 | 1,289
Total |  |  |  |  |  |  |  |  | 13,117 | 15,308 | 15,818
Deferred: |  |  |  |  |  |  |  |  |  |  |
Change in federal corporate income tax rate(1) |  |  |  |  |  |  |  |  | 0 | 0 | 14,263
Federal |  |  |  |  |  |  |  |  | 1,230 | (2,541) | 4,117
Deferred State and Local Income Tax Expense (Benefit) |  |  |  |  |  |  |  |  | 29 | (61) | (320)
Deferred Income Tax Expense (Benefit) |  |  |  |  |  |  |  |  | 1,259 | (2,602) | 18,060
Income tax expense | $ 3,921 | $ 3,696 | $ 3,275 | $ 3,484 | $ 3,502 | $ 3,238 | $ 2,887 | $ 3,079 | $ 14,376 | $ 12,706 | $ 33,878

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