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STOCKHOLDERS' EQUITY - Narrative (Detail) - Jefferies LLC - At-The-Market Offering Agreement - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Aug. 31, 2020 | Sep. 30, 2021 | Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Stock offering program, maximum value | $ 150.0 |  |
Issuance of common stock under public offering, net of issuance costs (in shares) |  | 202,705 | 2,007,932
Consideration received on transaction |  | $ 2.4 | $ 27.1

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