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Collaboration, Development and Supply Agreements-Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020 | Mar. 31, 2020 | Feb. 28, 2021 | Jan. 31, 2021
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |
Long-term deferred revenue | $ 64,350 |  |  |  |
Revenue recognized | 83,335 |  | $ 10,919 |  |
Valneva SE |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |
Deferred revenue | 51,000 |  |  |  |
Valneva SE | Supply Agreement |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |
Deferred revenue |  | $ 14,200 |  |  |
Revenue recognized |  | $ 64,900 |  |  |
CEPI Member |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |
Interest- free unsecured forgivable loan |  |  |  |  | $ 99,000
Advance payment from customer | 18,600 |  |  | $ 45,800 |
Long-term deferred revenue | $ 64,400 |  |  |  |

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