Quarterly report pursuant to Section 13 or 15(d)

Employee Stock Plans - Components of Stock-Based Compensation Expense Recognized (Detail)

v3.21.2
Employee Stock Plans - Components of Stock-Based Compensation Expense Recognized (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Jul. 31, 2021
Jul. 31, 2020
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Total stock-based compensation expense $ 7,158 $ 5,965
Restricted Stock    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Total stock-based compensation expense 6,962 5,813
ESPP    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Total stock-based compensation expense $ 196 $ 152