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STOCKHOLDERS' EQUITY - JonesTrading (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Aug. 14, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Class of Stock [Line Items] |  |  |  |
Proceeds from sale of common stock included in accounts receivable |  | $ 0 | $ 0 | $ 2,848
Sale of Stock, Number of Shares Issued in Transaction | 2,415,000 |  |  |
Proceeds from Issuance of Common Stock included in Accounts Receivable |  |  | $ 2,800 | $ 2,800
Common Stock, Aggregate Offering Price |  | $ 150,000 |  |
At-The-Market Agreement [Member] | JonesTrading Institutional Services LLC [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Sale of Stock, Number of Shares Issued in Transaction |  |  | 415,904 | 7,590,498

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