Equity Incentive Plan - Schedule of RSUs Activity for Performance-based RSUs Awarded to Employees Under 2019 Plan (Detail) - 2019 Plan [Member] - Restricted Stock Units [Member] - $ / shares	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSUs non-vested, Beginning Balance	1,876,669
Granted	788,120
Vested	(190,059)
Forfeited	(27,642)
RSUs non-vested, Ending Balance	2,447,088	1,876,669
Weighted Average Exercise Price, RSUs non-vested Beginning Balance	$ 6.45
Weighted average fair value granted	2.03
Weighted Average Exercise Price,Vested	6.52
Weighted Average Exercise Price,Forfeited	6.44
Weighted Average Exercise Price, RSUs non-vested Ending Balance	$ 5.99	$ 6.45
Weighted Average Remaining Contractual Term	5 years 9 months 10 days	6 years 1 month 6 days