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Collaborative Research, Development and License Agreements - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended			5 Months Ended	12 Months Ended
	Aug. 31, 2023	Apr. 30, 2023	Sep. 30, 2021	Aug. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Jul. 31, 2023	Apr. 27, 2023	Apr. 26, 2023
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Collaborative arrangement and arrangement other than collaborative, term					2 years
Advance Payments forgiven per CEPI-Bio E Assignment Agreement (Note 9)					$ 0	$ (47,401)	$ 0
Repayment of advance from customer									$ 47,400
Accrued liabilities (Note 7)					61,066	49,448
Total revenues					277,246	232,284	$ 722,683
Allowance for doubtful accounts receivables					12,313	12,313
U.S. Department of Defense
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Government assistance, transaction duration			2 years 6 months
Government assistance, award amount					30,000			$ 33,700
Coalition for Epidemic Preparedness Innovations
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Accounts receivable									$ 47,400
CEPI Partners
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Advance Payments forgiven per CEPI-Bio E Assignment Agreement (Note 9)					175,000
Repayment of advance from customer					67,300
Accrued liabilities (Note 7)					47,400
Accrual long-term balance					60,300
Long-term deferred revenue					0	0
Zhejiang Clover Biopharmaceuticals Inc And Clover Hong Kong Inc
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Accrual long-term balance					60,300
Zhejiang Clover Biopharmaceuticals Inc And Clover Hong Kong Inc \| Supply Agreement
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Contract asset balance						71,300
Biological E. Limited
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Repayment of advance from customer										$ 47,400
Prepayment of advance payment	$ 1,000	$ 13,500		$ 14,500
Additional future payment										5,500
Biological E. Limited \| Term 1
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Advance payment received										125,000
Biological E. Limited \| Term 2
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Additional future payment										12,300
Advance payment received										$ 250,000
U.S. Department of Defense
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenues					$ 8,600	$ 17,600
Proceeds from grant			$ 22,000