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, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock compensation expense	$ 3,622	$ 3,179	$ 10,850	$ 9,040
RSUs and Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock compensation expense	3,475	2,983	10,358	8,628
Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock compensation expense	$ 147	$ 196	$ 492	$ 412