REVENUE - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Description of timing	The majority of contracts are considered to have a contractual term of between 36 and 60 months based on implied and explicit termination penalties.
Amortization of capitalized contract costs	$ 0.5	$ 0.3
Prepaid Expenses and Other Current Assets
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Capitalized costs to obtain contracts	0.4	0.3
Noncurrent Assets
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Capitalized costs to obtain contracts	$ 1.8	$ 1.5
Minimum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contractual term	36 months
Maximum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contractual term	60 months