Common Stock Warrants - Schedule of Outstanding Warrants (Detail) - $ / shares	3 Months Ended	9 Months Ended
	Mar. 31, 2022	Sep. 30, 2022
Warrants [Roll Forward]
Outstanding and exercisable warrants to purchase common shares as of December 31, 2021	13,257,160	13,257,160
Issued		64,968,310
Exercised		(100)
Number of warrants, Outstanding and exercisable warrants, Ending Balance (in shares)		78,225,370
Class Of Warrant Or Right Issued, Weighted Average Exercise Price		$ 1.10
Warrants, Weighted Average Exercise Price [Roll Forward]
Weighted Average Exercise Price, Outstanding and exercisable warrants, Beginning Balance (in usd per share)	$ 7.96	7.96
Weighted Average Exercise Price, Outstanding and exercisable warrants, Ending Balance (in usd per share)		$ 2.12
Weighted Average Contractual Term (Years)	2 years 8 months 19 days	4 years 3 months 25 days