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Income Taxes - Income tax provision (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Current: |  |  |
Federal | $ 9,069 | $ 21,156 | $ 26,015
State | 3,785 | 4,477 | 4,869
Total current | 12,854 | 25,633 | 30,884
Deferred: |  |  |
Charge in federal tax rate due to the 2017 Act |  | 11,375 |
Federal | (13,381) | (3,193) | (7,748)
State | (2,941) | (1,781) | (646)
Total deferred | (16,322) | 6,401 | (8,394)
Total provision for income taxes | $ (3,468) | $ 32,034 | $ 22,490
Statutory federal rate | 21.00% | 35.00% | 35.00%
Tax benefit from 2017 Act | $ 1,200 |  |

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