Equity Incentive Plan - Schedule of Additional Information on Stock Option Grants And Vesting (Detail) - 2019 Plan [Member] - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total fair value of stock options granted	$ 941	$ 2,898
Total fair value of options vested	$ 1,784	$ 944