License, Collaboration, and Funding Agreements - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Collaboration License And Funding Arrangements [Line Items]
Other income, net	$ (74)	$ 228	$ 323	$ 494
Research and Development Incentive
Collaboration License And Funding Arrangements [Line Items]
Grant receivable	600		600
Other income, net	$ 673	$ 267	$ 673	$ 267