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Balance Sheet Details - Accrued Compensation and Employee Benefits (Details) - USD ($)
$ in Thousands
Jul. 31, 2021
Apr. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Accrued bonus $ 4,366 $ 12,216
Accrued vacation 3,824 3,935
Accrued payroll taxes and benefits 3,823 3,405
Accrued commission 1,811 1,863
Accrued salaries 933 410
Accrued compensation and employee benefits $ 14,757 $ 21,829