RELATED PARTY TRANSACTIONS (Details)									3 Months Ended		6 Months Ended		12 Months Ended
	Nov. 30, 2021	Nov. 10, 2021 USD ($) shares	Oct. 20, 2021	Sep. 10, 2021 USD ($) shares	Jun. 30, 2021 USD ($)	Nov. 30, 2020	Jul. 31, 2020 shares	May 26, 2020 shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($)	Dec. 31, 2021 USD ($) renewalTerm	Dec. 31, 2020 USD ($)	Jun. 30, 2021 USD ($)
Related Party Transaction [Line Items]
Sublease income									$ 5,400,000	$ 3,000,000.0	$ 10,700,000	$ 4,500,000
Expenses													$ 7,600,000
Gross unrecognized tax benefits					$ 279,900,000				267,900,000		267,900,000		279,900,000
Total share-based compensation expense									29,700,000	14,900,000	138,000,000.0	20,600,000
Series B Preferred Stock
Related Party Transaction [Line Items]
Conversion of Convertible Series B Preferred Stock (in shares) | shares		123,219		285,576
Unpaid preferred stock dividends converted to common stock		$ 1,200,000		$ 26,400,000					$ 1,200,000		1,200,000
Sale of stock, number of shares issued (in shares) | shares							250,000	750,000
Common Class A
Related Party Transaction [Line Items]
Conversion of Convertible Series B Preferred Stock (in shares) | shares									69,900,000
Common shares issued upon conversion (in shares) | shares		19,944,701		50,000,088
Wella Business
Related Party Transaction [Line Items]
Sublease income												1,400,000
Unearned contingent proceeds received, liability									$ 34,000,000.0		34,000,000.0
Transition Services Agreement Fees | Wella Business
Related Party Transaction [Line Items]
Revenue from related parties									37,100,000		70,300,000
Related Party Transaction, Other Fees | Wella Business
Related Party Transaction [Line Items]
Revenue from related parties									1,600,000		3,100,000
Wella Business
Related Party Transaction [Line Items]
Total share-based compensation expense									$ (3,000,000.0)	$ 500,000	$ (1,400,000)	500,000
Wella Business
Related Party Transaction [Line Items]
Equity method investment, amount sold (percentage)	4.70%		9.40%			60.00%
Ownership percentage						40.00%			25.90%		25.90%
KKR | Common Class A
Related Party Transaction [Line Items]
Sale of stock, number of shares issued (in shares) | shares		19,944,701		50,000,088
CEO
Related Party Transaction [Line Items]
Contribution agreement, percentage of total number of shares of common stock owed, to be transferred upon vesting					0.50
KKR | Consulting and Advisory Services
Related Party Transaction [Line Items]
Expenses											$ 0		$ 0
Wella Business
Related Party Transaction [Line Items]
Sublease income									$ 4,700,000		$ 7,100,000
Transition Services Agreement, term of agreement											18 months
Transition Services Agreement, term extension											3 months
Accounts receivable, related parties									184,400,000		$ 184,400,000
Accounts payable, related parties									5,100,000		5,100,000
Gross unrecognized tax benefits									$ 29,300,000		$ 29,300,000
Wella Business | Transition Services Agreement Fees
Related Party Transaction [Line Items]
Revenue from related parties												14,700,000
Wella Business | Related Party Transaction, Other Fees
Related Party Transaction [Line Items]
Revenue from related parties												$ 600,000
Orveda
Related Party Transaction [Line Items]
License agreement, term											5 years
License agreement, number of automatic renewals | renewalTerm											2
License agreement, automatic renewal term duration											5 years