COMMITMENTS AND CONTINGENCIES - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Mar. 31, 2019
Operating Leased Assets [Line Items]
Operating leases term	15 years			10 years
Operating leases for subleased franchise salons, term	5 years
Sublease income	$ 37.3	$ 34.0	$ 31.5
Rent expense on premises subleased to franchisees	$ 37.0	33.6	31.1
Sublease arrangements mark-up	10.00%
Net rental income from sublease arrangements	$ 0.3	$ 0.4	$ 0.4
Future minimum payments due	$ 2.3
Minimum
Operating Leased Assets [Line Items]
Operating leases term	1 year
Operating leases typical renewal term	5 years
Maximum
Operating Leased Assets [Line Items]
Operating leases term	20 years
Operating leases typical renewal term	10 years