ACCOUNTING POLICIES AND RECENT ACCOUNTING PRONOUNCEMENTS - Revenue recognition (Details)	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2021 revenue_stream	Jun. 30, 2021 revenueStream
Disaggregation of Revenue [Line Items]
Number of revenue streams (in revenue streams)		4	4
Capitalized contract cost, amortization period	6 years	6 years	6 years
Minimum
Disaggregation of Revenue [Line Items]
Payment period	30 days
Maximum
Disaggregation of Revenue [Line Items]
Payment period	60 days