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Employee Benefit Plans - Additional Information (Detail) - USD ($)
12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2018
Nov. 06, 2019
Retirement Benefits [Abstract]        
Contributes percentage 6.00%      
Contributions expenses $ 11,200,000 $ 10,600,000 $ 10,900,000  
Authorized amount $ 25,000      
Number of ESPP issuable       500,000
Market price 90.00%      
Brokerage commissions and administrative fees, percentage 10.00%      
Total share issued 705 8,895 20,725