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Revenues (Schedule of Major Customers Accounting for 10% or More of Net Revenues and Accounts Receivable Balance) (Details) - Customer Concentration Risk
12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2018
Tech Data Corporation | Net Revenue      
Concentration Risk [Line Items]      
Concentration risk (percent) 18.00% 18.00% 14.00%
Tech Data Corporation | Accounts Receivable      
Concentration Risk [Line Items]      
Concentration risk (percent) 23.00% 12.00%  
Jenne Corporation | Net Revenue      
Concentration Risk [Line Items]      
Concentration risk (percent) 15.00% 17.00% 13.00%
Jenne Corporation | Accounts Receivable      
Concentration Risk [Line Items]      
Concentration risk (percent) 25.00% 35.00%  
Westcon Group Inc. | Net Revenue      
Concentration Risk [Line Items]      
Concentration risk (percent) 13.00% 12.00% 13.00%