INCOME TAXES - Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Provision for income taxes reconciliation
U.S. statutory rate	21.00%	21.00%	21.00%
State income taxes, net of federal income tax benefit	7.60%	4.00%	0.50%
Valuation allowance	(58.30%)	(29.40%)	(14.50%)
Foreign income taxes at other than U.S. rates	8.50%	(0.60%)	0.90%
Work opportunity tax credits	0.20%	0.40%	7.20%
Uncertain tax positions	0.20%	(6.20%)	1.00%
Stock-based compensation	(0.60%)	0.10%	2.20%
Capital loss	0.00%	15.00%	0.00%
Loss on investment in Luxembourg	26.80%	0.00%	0.00%
Other, net	(0.80%)	(1.70%)	(8.70%)
Total	4.60%	2.60%	9.60%
Rate impact of derecognition of goodwill		(1.20%)	(5.90%)
Rate impact of miscellaneous items		(0.50%)	(2.80%)
Other, net threshold percentage			(8.70%)

Effective Income Tax Rate Reconciliation, Capital Loss Carryforwards, Percent

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Effective Income Tax Rate Reconciliation, Derecognition of Goodwill, Percent

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Effective Income Tax Rate Reconciliation, Loss On Investments, Percent

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Effective Income Tax Rate Reconciliation,Other Reconciling Items Threshold, Percent

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 740
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-Name Accounting Standards Codification
-Topic 235
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-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319

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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for share-based payment arrangement.

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Percentage of the difference, between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, that is attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority interest income (expense), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, change in enacted tax rate, prior year income taxes, change in deferred tax asset valuation allowance, and other adjustments.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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