DEBT - Schedule of fair value of debt (Details) - USD ($) $ in Millions	Mar. 31, 2026	Jun. 30, 2025
2018 Coty Credit Agreement \| Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	$ 199.6	$ 407.3
2018 Coty Credit Agreement \| Fair Value
Debt Instrument [Line Items]
Fair value of debt	199.6	407.3
Senior Secured Notes \| Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	3,010.3	3,591.4
Senior Secured Notes \| Fair Value
Debt Instrument [Line Items]
Fair value of debt	$ 2,964.8	$ 3,632.7

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details