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REDEEMABLE NONCONTROLLING INTERESTS - Redeemable Noncontrolling Interest Adjustments (Details) - Middle East Subsidiary
12 Months Ended
Jun. 30, 2020
Redeemable Noncontrolling Interest [Line Items]  
Percentage of redeemable noncontrolling interest 25.00%
Formula of redemption value assumptions, EBIT average period 3 years
Formula of redemption value assumptions, multiple applied to EBIT average 6