Stock-Based Compensation Expense - Stock Based Compensation Expense Recognized in Condensed Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total	$ 4,601	$ 3,622	$ 13,836	$ 10,850
RSUs and Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total	4,442	3,475	13,324	10,358
Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total	$ 159	$ 147	$ 512	$ 492