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Employee Benefit Plans (Details) - USD ($)
$ in Millions
 12 Months Ended
May 21, 2020
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Employer matching contribution, percent   2.00%    
Defined contribution plan, cost   $ 3.6 $ 2.1 $ 1.5
Self insurance reserve   $ 1.8 $ 0.7  
Employee Stock Purchase Plan ("ESPP") | Employee Stock Purchase Plan ("ESPP")        
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]        
Purchase price of common stock, percent 95.00%      
Minimum purchase price of common stock as a percent of offering date fair value, percent 85.00%      
Minimum purchase price of common stock as a percent of common stock exercise date fair value, percent 85.00%