GOODWILL AND INTANGIBLE ASSETS, NET - Narrative (Details) - USD ($)	3 Months Ended				12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Line Items]
Goodwill	$ 563,700,000				$ 563,700,000	$ 673,700,000
Goodwill impairment charge	$ 0	$ 0	$ 11,200,000	$ 99,800,000
Benefit from income taxes					(158,800,000)	(200,000)
Finite-lived intangible assets impairment					0	0
Indefinite-lived intangible assets impairment					33,100,000	0
Amortization expense					$ 34,200,000	$ 40,300,000
Weighted-average cost of capital | Minimum
Goodwill [Line Items]
Goodwill measurement input	9.50%				9.50%
Weighted-average cost of capital | Maximum
Goodwill [Line Items]
Goodwill measurement input	12.50%				12.50%
Perpetual growth rate
Goodwill [Line Items]
Goodwill measurement input	2.00%				2.00%
Goodwill
Goodwill [Line Items]
Benefit from income taxes					$ 9,200,000
Intangible assets
Goodwill [Line Items]
Benefit from income taxes					$ 6,900,000
Revlon Reporting Unit
Goodwill [Line Items]
Goodwill			264,900,000	264,700,000
Elizabeth Arden Skin and Color Reporting Unit
Goodwill [Line Items]
Goodwill			67,400,000	67,400,000
Fragrances Reporting Unit
Goodwill [Line Items]
Goodwill			120,800,000	120,800,000
Mass Portfolio Reporting Unit | Portfolio
Goodwill [Line Items]
Goodwill				0
Goodwill impairment charge				54,300,000
Professional Portfolio Reporting Unit | Portfolio
Goodwill [Line Items]
Goodwill			87,600,000	97,200,000
Goodwill impairment charge			9,600,000	19,600,000
Elizabeth Arden Fragrances Reporting Unit | Elizabeth Arden
Goodwill [Line Items]
Goodwill			22,000,000.0	23,500,000
Goodwill impairment charge			1,600,000	25,900,000
Mass Portfolio, Elizabeth Arden Fragrances and Elizabeth Arden Skin and Color Reporting Units | COVID-19
Goodwill [Line Items]
Indefinite-lived intangible assets impairment				$ 24,500,000
Elizabeth Arden Fragrances and Elizabeth Arden Skin And Color Reporting Units | COVID-19
Goodwill [Line Items]
Indefinite-lived intangible assets impairment			$ 8,600,000