EQUITY AND CONVERTIBLE PREFERRED STOCK - Narrative (Details)				1 Months Ended	3 Months Ended		12 Months Ended
	Oct. 02, 2023 USD ($) $ / shares shares	Sep. 18, 2023 shares	Oct. 29, 2021 shares	Feb. 29, 2024 USD ($) shares	Sep. 30, 2024 USD ($) vote class_of_stock $ / shares shares	Sep. 30, 2023 USD ($)	Jun. 30, 2020 $ / shares shares	Jun. 30, 2024 USD ($) $ / shares shares	Nov. 30, 2023 USD ($)	Nov. 13, 2023 USD ($)	Oct. 02, 2023 € / shares	Dec. 31, 2022 USD ($)	Jun. 30, 2022 USD ($)	Aug. 27, 2021 shares	Mar. 27, 2017 $ / shares shares	Feb. 03, 2016 USD ($)
Class of Stock [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.01				$ 0.01			$ 0.01
Common stock, shares authorized (in shares) | shares					1,250,000,000			1,250,000,000
Common stock, shares outstanding (in shares) | shares					867,800,000			867,800,000
Issuance of common stock in connection with global offering, net of offering costs (in shares) | shares	33,000,000
Shares issued (in dollars per share) | (per share)	$ 10.80										€ 10.28
Deferred offering costs	$ 348,400,000
Underwriting fees	10,000,000.0
Professional fees	$ 6,000,000.0
Preferred stock, shares authorized (in shares) | shares					20,000,000.0			20,000,000.0
Number of classes of preferred stock | class_of_stock					1
Preferred stock, par value (in dollars per share) | $ / shares					$ 0.01			$ 0.01
Preferred stock, shares issued (in shares) | shares					1,000,000.0			1,000,000.0
Preferred stock, shares outstanding (in shares) | shares					1,000,000.0			1,000,000.0
Preferred stock dividends declared and paid during the period					$ 0	$ 0
Authorized repurchase amount									$ 294,000,000.0			$ 196,000,000.0	$ 200,000,000.0
Weighted average interest rate spread									8.20%			9.80%
Dividends					0
Additional Paid-in Capital
Class of Stock [Line Items]
Dividends payable					0	0
June 2022 Forward Contracts
Class of Stock [Line Items]
Authorized repurchase amount									$ 294,000,000.0				$ 200,000,000.0
Fair value of the shares repurchased				$ 350,600,000
December 2022 Forward Contracts
Class of Stock [Line Items]
Authorized repurchase amount												$ 196,000,000.0
Share Repurchase Program
Class of Stock [Line Items]
Additional amount authorized to be repurchased (in shares)										$ 600,000,000.0
Restricted Stock Units and Phantom Units | Accrued Expenses and Other Current Liabilities
Class of Stock [Line Items]
Dividends payable					$ 800,000			$ 800,000
CEO | RSUs | JAB Beauty B.V
Class of Stock [Line Items]
Shares contributed by related party (in shares) | shares		5,000,000	10,000,000
Common Class A
Class of Stock [Line Items]
Common stock, par value (in dollars per share) | $ / shares					$ 0.01
Votes per share | vote					1
Common stock, shares authorized (in shares) | shares					1,250,000,000
Common stock, shares outstanding (in shares) | shares					867,800,000
Common Class A | June 2022 Forward Contracts
Class of Stock [Line Items]
Shares repurchase cash payment				$ 200,000,000.0
Shares repurchase by shares (in shares) | shares				27,000,000
Common Class A | Incremental Repurchase Program
Class of Stock [Line Items]
Authorized repurchase amount																$ 500,000,000.0
Share repurchase program, remaining authorized repurchase amount					$ 796,800,000
Common Class A | JAB Beauty B.V
Class of Stock [Line Items]
Parent ownership percentage					55.00%
Series A Preferred Stock
Class of Stock [Line Items]
Votes per share | vote					0
Preferred stock, shares authorized (in shares) | shares					1,000,000
Preferred stock, par value (in dollars per share) | $ / shares					$ 0.01
Preferred stock, shares issued (in shares) | shares					1,000,000										1,000,000
Preferred stock, shares outstanding (in shares) | shares					1,000,000
Preferred stock, redemption price (in dollars per share) | $ / shares															$ 0.01
Series B Preferred Stock
Class of Stock [Line Items]
Preferred stock, par value (in dollars per share) | $ / shares							$ 0.01
Sale of stock, shares authorized (in shares) | shares							1,000,000
Sale of stock, price per share (in dollars per share) | $ / shares							$ 1,000
Preferred stock, dividend rate					9.00%
Dividends declared					$ 3,300,000	3,300,000
Preferred stock dividends declared and paid during the period					3,300,000	$ 3,300,000
Dividends payable					$ 3,300,000			$ 3,300,000
Series B Preferred Stock | KKR | HFS
Class of Stock [Line Items]
Preferred stock, shares issued (in shares) | shares														146,057