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Moderna Collaboration and License Agreement - Schedule of Changes in Deferred Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Movement in Deferred Revenue [Roll Forward] |  |
Balance at the beginning of the period | $ 46,413 | $ 47,459
Deferral of revenue | 3,173 | 2,920
Recognition of unearned revenue | (3,397) | (3,243)
Balance at the ending of the period | $ 46,189 | $ 47,136

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