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Equity Method Investment, Ownership Percentage Sold

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Ownership Percentage Assuming Full Conversion Of Preferred Stock

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Percentage Of Convertible Preferred Stock Redeemed For Business Divestiture

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Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of receivables arising from transactions with related parties due within one year or the normal operating cycle, if longer.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Reflects the sum of all other revenue and income realized from sales and other transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party during the period.

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Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

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RELATED PARTY TRANSACTIONS (Details)				3 Months Ended		12 Months Ended
RELATED PARTY TRANSACTIONS (Details)	Nov. 06, 2021	Oct. 20, 2021	Nov. 30, 2020	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2021
Related Party Transaction [Line Items]
Expenses					$ 7,600,000
Total share-based compensation expense				$ 108,300,000	5,700,000
Sublease income				$ 5,300,000	1,500,000
KKR
Related Party Transaction [Line Items]
Ownership percentage assuming full conversion of preferred stock				10.90%
Wella Business
Related Party Transaction [Line Items]
Ownership percentage				40.00%
Wella Business \| Subsequent event
Related Party Transaction [Line Items]
Equity method investment, amount sold (percentage)	4.70%	9.40%
Ownership percentage after transaction	25.90%	30.60%
Percentage of convertible preferred stock redeemed for sale of equity method investment	56.00%
Wella Business \| KKR
Related Party Transaction [Line Items]
Ownership percentage				60.00%
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]
Transition Services Agreement, term of agreement			18 months
Transition Services Agreement, term extension			3 months
Accounts receivable, related parties				160,700,000
Accounts payable, related parties				46,200,000
Total share-based compensation expense				1,600,000
Sublease income				2,400,000
Wella Business \| Transition Services Agreement Fees
Related Party Transaction [Line Items]
Revenue from related parties				33,200,000
Wella Business \| Related Party Transaction, Other Fees
Related Party Transaction [Line Items]
Revenue from related parties				$ 1,500,000