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Stockholders' Equity - Schedule of Fair Value of ESPP Offerings (Details)
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected term (in years)   6 years 3 months 6 years 3 months
Expected volatility, minimum 35.00% 50.00% 46.00%
Expected volatility, maximum 85.10% 100.60% 51.00%
Risk-free interest rate, minimum 0.38% 0.35% 2.19%
Risk-free interest rate, maximum 1.03% 1.88% 2.89%
Expected dividend yield 0.00% 0.00% 0.00%
Minimum      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected term (in years) 4 years    
Maximum      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected term (in years) 6 years 3 months    
2019 Employee Stock Purchase Plan      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected volatility   50.00%  
Expected volatility, minimum 81.00%    
Expected volatility, maximum 88.40%    
Risk-free interest rate, minimum 0.05% 1.47%  
Risk-free interest rate, maximum 0.13% 1.56%  
Expected dividend yield 0.00% 0.00%  
2019 Employee Stock Purchase Plan | Minimum      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected term (in years) 6 months 6 months  
2019 Employee Stock Purchase Plan | Maximum      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected term (in years) 1 year 1 year 2 months 1 day