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ALLOWANCE FOR DOUBTFUL ACCOUNTS (Tables)
 12 Months Ended
Jun. 30, 2020
Receivables [Abstract]  
Changes in Carrying Amount of Allowance For Doubtful Accounts
Balance as of June 30, 2017
$
6,319

Bad debt expense
9,942

Write-off /adjustments
(6,520
)
Balance as of June 30, 2018
9,741

Bad debt expense
13,461

Write-off /adjustments
(6,191
)
Balance as of June 30, 2019
17,011

Bad debt expense
11,461

Write-off /adjustments
(7,566
)
Balance as of June 30, 2020
$
20,906