Equity Incentive Plan - Schedule of Stock Option Activity Under 2019 Plan (Detail) - 2019 Plan [Member] - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options outstanding, beginning balance	6,529,092
Options forfeited	0
Options expired	(63,032)
Options outstanding, ending balance	6,466,060	6,529,092
Options vested and exercisable	5,097,383
Options vested and expected to vest	6,466,060
Weighted average exercise price, beginning balance	$ 6.88
Weighted average exercise price, forfeited	0
Weighted average exercise price, expired	8.2
Weighted average exercise price, ending balance	6.86	$ 6.88
Weighted average exercise price, vested and exercisable	8.05
Weighted average exercise price, vested and expected to vest	$ 6.86
Weighted average remaining contractual term, balance	6 years 10 months 24 days	6 years 10 months 24 days
Options vested and exercisable, March 31, 2024	6 years 4 months 24 days
Options vested and expected to vest, March 31, 2024	6 years 10 months 24 days