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STOCK-BASED COMPENSATION - Additional Information (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total stock-based compensation expense | $ 57,740 | $ 54,527 | $ 41,515
Consulting and Professional Services Agreement (“CPSA”) |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total stock-based compensation expense |  | $ 5,400 | $ 1,800
Consulting and Professional Services Agreement (“CPSA”) | Chief Clinical Officer |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total stock-based compensation expense | 400 |  |
Consulting and Professional Services Agreement (“CPSA”) | Executive Vice President |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total stock-based compensation expense | 100 |  |
Acceleration of Consulting and Professional Services Agreement | Chief Executive Officer |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total stock-based compensation expense | $ 900 |  |

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