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Allowance for Doubtful Accounts
 3 Months Ended
Sep. 30, 2019
Receivables [Abstract]  
ALLOWANCE FOR DOUBTFUL ACCOUNTS ALLOWANCE FOR DOUBTFUL ACCOUNTS
Balance as of June 30, 2019
17,011

Bad debt expense
1,278

Write-off /adjustments
(1,999
)
Balance as of September 30, 2019
$
16,290


Included in accounts receivable are unbilled receivables in the amount of $54.3 million as of September 30, 2019 (June 30, 2019—$56.1 million).