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SHARE BASED COMPENSATION (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Apr. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation | $ 10,077 | $ 17,908 | $ 17,897 |
Restricted Stock or Unit Expense | $ 10,100 | 17,900 | 17,900 |
Share Incentive Plan 2014 [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Ordinary shares authorized | 21,000,000 |  |  |
Share Incentive Plan 2018 [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Ordinary shares authorized |  |  |  | 38,600,000
Restricted Stock Units (RSUs) [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Unrecognized compensation cost | $ 12,000 |  |  |
Unrecognized compensation cost, recognition period | 1 year 7 months 13 days |  |  |
Employee Stock Option [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation | $ 0 | $ 0 | $ 100 |

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