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COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($) $ in Millions |  | 9 Months Ended
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Sep. 23, 2019 | Sep. 30, 2020
Loss Contingencies [Line Items] |  |
Amount financed in vendor financing arrangement |  | $ 97.6
Term of vendor financing arrangement |  | 2 years
Frontline Case | Performance Guarantee |  |
Loss Contingencies [Line Items] |  |
Damages awarded | $ 135.2 |

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