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INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Income Tax Disclosure [Abstract] |  |  |  |  |
Income tax provision (benefit) | $ 23,568 | $ 1,240 | $ 7,257 | $ (6,746) |
Effective income tax rate (as a percent) | 15.00% | 1.00% |  |  |
Unrecognized tax benefits including interest and penalties | $ 42,000 |  | 42,000 |  | $ 55,500
Increase (decrease) in unrecognized tax benefits including interest and penalties |  |  | 13,500 |  |
Unrecognized tax benefits that would reduce income tax expense | 37,600 |  | 37,600 |  | $ 51,900
Decrease in unrecognized tax benefits is reasonably possible | $ 3,200 |  | $ 3,200 |  |

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