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Revenue, Performance Obligations, Deferred Revenue and Deferred Costs - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2018
Revenue From Contract With Customer [Abstract]      
Aggregate amount of transaction price allocated to performance obligations $ 152.3    
Deferred revenue, recognized 5.6 $ 5.6  
Amortization of deferred sales commissions 2.3 1.4 $ 1.0
Amortization of deferred service costs $ 0.4 $ 1.1 $ 0.4