ACCOUNTING POLICIES - Revenue Recognition and Equipment Rental (Details)	12 Months Ended
	Jun. 30, 2021
Property, Plant and Equipment [Line Items]
Term of non-cancelable lease with agreement	5 years
Lessor, operating lease term	36 months
Minimum
Property, Plant and Equipment [Line Items]
Payment terms	30 days
Cancellation period	30 days
Maximum
Property, Plant and Equipment [Line Items]
Payment terms	60 days
Cancellation period	60 days