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INCOME TAXES - TAX CUT AND JOBS ACT (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Tax Cuts And Jobs Act [Line Items] |  |
Federal corporate tax rate |  | 35.00%
Impact on deferred tax assets due to corporate tax rate reduction |  | $ 102,300,000
Scenario, Forecast |  |
Tax Cuts And Jobs Act [Line Items] |  |
Federal corporate tax rate | 21.00% |

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