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BUSINESS COMBINATION - Additional Information (Details) - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Aug. 30, 2019 | Sep. 30, 2019 | Jun. 30, 2020
Business Acquisition [Line Items] |  |  |
Goodwill | $ 58.0 | $ 58.0 | $ 0.0
Bannockburn [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Business Combination, Consideration Transferred | $ 114.6 |  |

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