Collaborative Research, Development and License Agreements - Additional Information (Detail) - USD ($) $ in Thousands		1 Months Ended			3 Months Ended		9 Months Ended
	Apr. 26, 2023	Aug. 31, 2023	Apr. 30, 2023	Sep. 30, 2021	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Apr. 27, 2023
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Advance Payments forgiven per CEPI-Bio E Assignment Agreement (Note 6)					$ 0	$ (47,401)	$ 0	$ (47,401)
Repayment of advance from customer										$ 47,400
Accrued liabilities					54,102		54,102		$ 49,448
Allowance for doubtful accounts receivables					12,313		12,313		12,313
Prepayment of advance payment		$ 1,000	$ 13,500
Increase in revenue adjustment							38,700
Total revenues					80,630	69,514	205,214	176,688
Coalition for Epidemic Preparedness Innovations Partners
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Advance Payments forgiven per CEPI-Bio E Assignment Agreement (Note 6)					175,000		175,000
Repayment of advance from customer					67,300		67,300
Accrued liabilities					47,400		47,400
Accrual long term balance					60,300		60,300
Contract with customer, liability					0		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		60,300
Zhejiang Clover Biopharmaceuticals Inc And Clover Hong Kong Inc | Supply Agreement
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Contract asset					71,300		71,300		$ 71,300
Biological E. Limited
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Repayment of advance from customer	$ 47,400
Prepayment of advance payment	14,500
Biological E. Limited | Term 1
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Additional future payment	5,500
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]
Proceeds from grant				$ 22,000
Transaction duration				2 years 6 months
Total revenues					$ 1,300	$ 7,200	$ 7,700	$ 14,500
CEPI Member
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Accounts receivable net current										$ 47,400