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Revenue Recognition - Summary of balances and activities in our contract asset account (Details) - CpG 1018 adjuvant $ in Thousands | 9 Months Ended
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Sep. 30, 2022 USD ($)
Balance at Beginning of Period | $ 62,525 |
Additions (1) | 38,410 | [1]
Subtractions (2) | (28,181) | [2]
Balance at End of Period | $ 72,754 |
[1] | (1) Additions are, primarily, revenues recognized for CpG 1018 adjuvant transferred to Clover that is reserved under the CEPI Agreement, as amended.
[2] | (2) Subtractions are reclassifications from contract asset to accounts receivables.

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