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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Description of Business (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2020 USD ($) segment	Jun. 30, 2019 USD ($)
Description of Business
Number of reporting segments | segment	3
Cash and Cash Equivalents
Cash and cash equivalents	$ 76,102	$ 96,316
Repatriation tax considerations (as a percent)	63.00%
Accounts Receivable
Accounts receivables	$ 287,488	253,504
Less allowance for doubtful accounts	(17,648)	(15,064)
Total	$ 269,840	$ 238,440
Goodwill and Other Intangible Assets and Valuation of Long Lived Assets
Number of reporting units | segment	3
Two of our three reporting units
Goodwill and Other Intangible Assets and Valuation of Long Lived Assets
Number of reporting units | segment	3
Goodwill impairment	$ 0

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