FAIR VALUE MEASUREMENTS - Level 3 Rollforward of Warrant Liability (Details) $ in Thousands |
6 Months Ended |
---|---|
Jun. 30, 2020
USD ($)
| |
Fair Value Disclosures [Abstract] | |
Warrant liability, beginning of year | $ 14,977 |
Recognized loss from mark-to-market adjustment prior to reclassification of warrant liability to equity | 957 |
Reclassification from warrant liability to equity | (15,934) |
Warrant liability, end of year | $ 0 |