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INCOME TAXES - Additional information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Income Taxes |  |  |  |
Income Tax Credits and Adjustments | $ 400 |  | $ 1,600 |
Effective Income Tax Rate Reconciliation, Percent |  |  | 8.00% |
Discrete Items Income Tax Benefit | 400 | $ 200 | $ 1,600 | $ 600
Income tax expense | 71 | 463 | 651 | 1,671
Income taxes paid |  |  | $ 700 | 2,200
Estimated Rate One [Member] |  |  |  |
Income Taxes |  |  |  |
Effective Income Tax Rate Reconciliation, Percent |  |  | 29.00% |
Estimated Ta rate Two [Member] |  |  |  |
Income Taxes |  |  |  |
Effective Income Tax Rate Reconciliation, Percent |  |  | 12.00% |
Discrete Items Recognized [Member] |  |  |  |
Income Taxes |  |  |  |
Income tax expense | $ 100 | $ 500 | $ 700 | $ 1,700

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