GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Narrative (Details)	1 Months Ended	3 Months Ended		9 Months Ended	12 Months Ended
	Jul. 31, 2018 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Sep. 30, 2019 USD ($)
Business Acquisition [Line Items]
Goodwill impairment charges		$ 0			$ 105,000,000.0	$ 3,307,500,000	$ 0
Impairment of intangible assets, indefinite-lived					329,000,000.0	389,800,000
Impairment of intangible assets, finite-lived						19,700,000
Asset impairment charges					434,000,000.0	3,729,000,000.0	0
Amortization of intangible assets					233,100,000	246,700,000	$ 244,300,000
EMEA
Business Acquisition [Line Items]
Goodwill impairment charges					105,000,000.0	1,455,300,000
Discontinued Operations, Disposed of by Sale | Younique, LLC
Business Acquisition [Line Items]
Disposal group, goodwill								$ 22,900,000
Disposal group, intangible assets								$ 228,600,000
Trademarks
Business Acquisition [Line Items]
Impairment of intangible assets, indefinite-lived					$ 329,000,000.0	$ 389,800,000
Trademarks | EMEA
Business Acquisition [Line Items]
Impaired intangible asset, fair value determination, discount rate increase		0.0190			0.0165
Trademarks | COVID-19
Business Acquisition [Line Items]
Impairment of intangible assets, indefinite-lived		$ 288,600,000	$ 40,400,000	$ 40,400,000
License agreements
Business Acquisition [Line Items]
Asset impairment charges	$ 12,600,000
License agreements | Minimum
Business Acquisition [Line Items]
Renewal term					2 years
License agreements | Maximum
Business Acquisition [Line Items]
Renewal term					10 years