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SHARE-BASED COMPENSATION - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Weighted average grant date fair value of options granted (in USD per share) | $ 4.65 | $ 10.86 | $ 56.70
Weighted average exercise price of options granted (in USD per share) | $ 0 | $ 0.03 | $ 0.38
Intrinsic value of options exercised | $ 561 | $ 962 | $ 9,349
Unrecognized compensation cost related to share options | $ 2,552 |  |
Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Weighted-average remaining period of unrecognized compensation cost | 1 year 11 months 12 days |  |
Restricted Stock Units (RSUs) |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Weighted average grant date fair value of units granted (in USD per share) | $ 4.27 | $ 9.67 | $ 68.70
Fair value of units as of their respective release dates | $ 5,522 | $ 1,341 | $ 484
Unrecognized compensation cost related to share unvested units | $ 7,642 |  |
Weighted-average remaining period of unrecognized compensation cost | 2 years 3 months 18 days |  |
2021 Plan | Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting period | 3 years |  |
Award expiration period | 10 years |  |
2021 Plan | Class A Ordinary Shares |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Percentage of total shares as an annual increase in number of shares authorized | 5.00% |  |
Number of shares that may be issued (in shares) | 3,100,410 |  |
Number of shares available for future grant (in shares) | 65,744 |  |

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