Equity Incentive Plan - Schedule of Stock Option Activity Under 2019 Plan (Detail) - 2019 Plan [Member]	6 Months Ended	12 Months Ended
	Jun. 30, 2024 $ / shares shares	Dec. 31, 2023 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options outstanding, beginning balance | shares	6,529,092
Options forfeited | shares	(4,501)
Options expired | shares	(70,181)
Options outstanding, ending balance | shares	6,454,410	6,529,092
Options vested and exercisable | shares	5,428,010
Options vested and expected to vest | shares	6,454,410
Weighted average exercise price, beginning balance | $ / shares	$ 6.88
Weighted average exercise price, forfeited | $ / shares	2.33
Weighted average exercise price, expired | $ / shares	8.12
Weighted average exercise price, ending balance | $ / shares	6.87	$ 6.88
Weighted average exercise price, vested and exercisable | $ / shares	7.63
Weighted average exercise price, vested and expected to vest | $ / shares	$ 6.87
Weighted average remaining contractual term, balance	6 years 6 months 21 days	6 years 7 months 6 days
Options vested and exercisable, June 30, 2024	6 years 2 months 12 days
Options vested and expected to vest, June 30, 2024	6 years 6 months 21 days