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MAJOR CUSTOMERS, PARTNERSHIPS AND STRATEGIC ALLIANCES - Novartis Institutes for BioMedical Research, Inc. (Detail) - USD ($) $ in Thousands |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jul. 27, 2020 | Aug. 31, 2020 | Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2021
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |  |  |  |
Accounts receivable |  |  | $ 6,938 |  |  | $ 6,013
Novartis Institutes for BioMedical Research, Inc. | Collaboration And License Agreement |  |  |  |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |  |  |  |
Proceeds from collaborators |  | $ 75,000 |  |  |  |
Collaborative arrangement transaction price | $ 95,100 |  |  |  |  |
License fee | 75,000 |  |  |  |  |
Collaborative arrangement estimated reimbursable service costs | 20,100 |  |  |  |  |
Accounts receivable |  |  | 1,900 |  |  | 1,900
Deferred revenue |  |  | 33,900 |  |  | $ 40,900
Financial advisory fees |  |  |  |  | $ 1,500 |
Percent of initial recognition |  |  |  |  | 2.00% |
Amortization |  |  | $ 100 | $ 100 |  |
Novartis Institutes for BioMedical Research, Inc. | Collaboration And License Agreement | Achievement Of Specified Preclinical Development Clinical Development And First Commercial Sale Milestones |  |  |  |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |  |  |  |
Development and sales-based milestone payments to be received | 420,000 |  |  |  |  |
Novartis Institutes for BioMedical Research, Inc. | Collaboration And License Agreement | Achievement Of Commercial Milestones |  |  |  |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |  |  |  |
Development and sales-based milestone payments to be received | $ 300,000 |  |  |  |  |

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