Government Contracts - Additional Information (Detail) $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended
	May 31, 2021 USD ($) Option	Jul. 31, 2018 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jul. 31, 2024 USD ($)
Government Contracts [Line Items]
Potential Amount of Uncommitted Funding			$ 12,700		$ 12,700
Grant revenue			10,197	$ 2,716	19,464	$ 4,786
Subsequent Event [Member]
Government Contracts [Line Items]
Potential amount additional funding awarded							$ 11,700
Potential amount increase in committed funding							$ 59,300
BARDA [Member]
Government Contracts [Line Items]
Potential contract amount awarded		$ 44,200
Potential amount increase in committed funding			47,600		47,600
BARDA [Member] \| Base Period Contracts [Member]
Government Contracts [Line Items]
Potential amount initial funding awarded		$ 15,700
Contract term		3 years
BARDA [Member] \| Grant [Member]
Government Contracts [Line Items]
Grant revenue			4,100	1,000	9,000	1,500
Niaid [Member]
Government Contracts [Line Items]
Committed amount from government contract					7,000
Niaid [Member] \| SPR206 [Member]
Government Contracts [Line Items]
Contract term	5 years
Grant revenue			$ 100	$ 900	$ 200	$ 1,800
Award received for clinical development	$ 23,500
Number of option period for funding from government contract \| Option	6