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MAJOR CUSTOMERS, PARTNERSHIPS AND STRATEGIC ALLIANCES - Sanofi S.A. (Detail) $ in Thousands | 1 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jan. 31, 2014 USD ($) program | Jun. 30, 2022 USD ($) milestone product | Dec. 31, 2021 USD ($)
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |
Accounts receivable |  | $ 6,002 | $ 6,013
Sanofi S.A. |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |
Number of research programs | program | 2 |  |
Revenues under agreement | $ 20,000 |  |
Milestone revenue receivable |  | $ 6,000 |
Number of products approved | product |  | 0 |
Sanofi S.A. | Collaboration And License Agreement |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |
Revenues under agreement | 20,000 |  |
Development and sales-based milestone payments to be received | 276,300 |  |
Number of milestones included in transaction price | milestone |  | 0 |
Collaborative arrangement transaction price | 96,300 |  |
Collaborative arrangement estimated reimbursable service costs | 62,800 |  |
Accounts receivable |  | $ 1,100 | 600
Deferred revenue |  | 0 | $ 1,100
Sanofi S.A. | Collaboration And License Agreement | Milestone two |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |
Milestone revenue receivable |  | 7,500 |
Sanofi S.A. | Collaboration And License Agreement | Milestone three |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |
Milestone revenue receivable |  | $ 13,500 |
Sanofi S.A. | Achievement of specified clinical development And regulatory milestones | Collaboration And License Agreement |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |
Development and sales-based milestone payments to be received | 115,800 |  |
Sanofi S.A. | Achievement of specified sales milestones | Collaboration And License Agreement |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |
Development and sales-based milestone payments to be received | $ 160,500 |  |

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