INCOME TAXES - Valuation Allowance (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
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| INCOME TAXES | ||
| Valuation allowance at beginning of the year | $ 87,370 | $ 56,405 |
| Increases recorded to income tax provision | 25,058 | 30,965 |
| Decreases recorded as a benefit to income tax provision | (934) | |
| Valuation allowance at end of year | $ 111,494 | $ 87,370 |
| X | ||||||||||
- Definition Amount of increase (decrease) in the valuation allowance due to recorded as a benefit to income tax provision. No definition available.
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| X | ||||||||||
- Definition Amount of increase (decrease) in the valuation allowance due to recorded to income tax provision. No definition available.
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| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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