Stock-Based Compensation Expense - Stock Based Compensation Expense Recognized in Condensed Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock compensation expense	$ 4,422	$ 3,926	$ 7,228	$ 5,861
RSUs and Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock compensation expense	4,239	3,819	6,883	5,625
Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock compensation expense	$ 183	$ 107	$ 345	$ 236