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Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Other	$ 3,042	$ 3,080
Total accrued expenses and other current liabilities	19,418	14,764
Supply Agreement | Vaxcyte
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Collaboration and license agreements and supply agreement accruals	6,144	4,830
CMO
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Collaboration and license agreements and supply agreement accruals	7,428	3,900
Clinical Trials
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Collaboration and license agreements and supply agreement accruals	$ 2,804	$ 2,954

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