OTHER NONCURRENT ASSETS - Change in the balance of other investments (Details) $ in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2020
USD ($)
| |
| OTHER NONCURRENT ASSETS | |
| Ending balance | $ 3,000 |
| Percentage of annual interest rate due in two years | 3.00% |
| X | ||||||||||
- Definition Percentage of annual interest rate due in two years. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of long-term investments classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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