FAIR VALUE MEASUREMENTS - Summary of the changes in the fair value of level 3 Warrant Liabilities (Details) |
3 Months Ended |
|---|---|
|
Mar. 31, 2021
USD ($)
| |
| FAIR VALUE MEASUREMENTS | |
| Fair value as of January 1, 2021 | $ 13,580,000 |
| Change in fair value | (3,686,000) |
| Fair value as of March 31, 2021 | $ 9,894,000 |