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Allowance for Doubtful Accounts - Changes In Carrying Amount (Details) - USD ($)
$ in Thousands
9 Months Ended
Mar. 31, 2020
Jun. 30, 2019
Accounts Receivable, Allowance for Credit Loss [Roll Forward]    
Balance as of beginning of the period $ 17,011  
Bad debt expense 6,444  
Write-off /adjustments (5,154)  
Balance as of end of the period 18,301  
Unbilled receivables $ 59,400 $ 56,100