Canadian Government Research and Development Program Liability - Narrative (Detail) $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Apr. 30, 2019 CAD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Research and Development [Abstract]
Lesser eligible costs percentage	18.48%
Lesser eligible costs	$ 23.0
Funding repayment period	15 years
Repayment ratio compared to actual funding received	1.25
Funding reduction percentage	50.00%
Minimum costs of commercial plants	$ 500.0
Commercial plants constructed and operational period	30 months
Proceeds from Canadian Government Research and Development Program		$ 0.0	$ 0	$ 8,097,000	$ 0
Funding liability		$ 15,300,000		$ 15,300,000		$ 7,300,000