COMMITMENTS AND CONTINGENCIES - ADDITIONAL INFORMATION (Details)	9 Months Ended
	Mar. 31, 2019 audit taxable_jurisdiction
Loss Contingencies [Line Items]
Number of Taxable Jurisdictions | taxable_jurisdiction	150
Minimum
Loss Contingencies [Line Items]
Number of Audits Typically Underway	40
Maximum
Loss Contingencies [Line Items]
Number of Audits Typically Underway	50