v3.26.1
EQUITY AND CONVERTIBLE PREFERRED STOCK - Common Stock (Details)
$ / shares in Units, $ in Millions
 12 Months Ended
Oct. 02, 2023
USD ($)
$ / shares
shares
Sep. 18, 2023
shares
Oct. 29, 2021
shares
Jun. 30, 2026
USD ($)
vote
$ / shares
shares
Jun. 30, 2025
USD ($)
$ / shares
shares
Jun. 30, 2024
USD ($)
shares
Dec. 20, 2025
$ / shares
Oct. 02, 2023
€ / shares
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)       1,250,000,000 1,250,000,000      
Common stock, shares outstanding (in shares)       880,500,000 872,300,000      
Exercise of employee stock options and restricted stock units and issuance of restricted stock | $       $ 0.0   $ 13.5    
Issuance of Class A Common Stock in connection with global offering, net of offering costs (in shares) 33,000,000.0              
Shares issued (in dollars per share and euro per share) | (per share) $ 10.80             € 10.28
Deferred offering costs | $ $ 348.4              
Underwriting fees | $ 10.0              
Professional fees | $ $ 6.0              
Employee Stock Options, Restricted Stock Units (RSUs) and Employee Stock Ownership Program                
Class of Stock [Line Items]                
Exercise of employee stock options and restricted stock units and issuance of restricted stock | $       $ 0.0 $ 0.0 $ 13.5    
Restricted Stock Units | JAB Beauty B.V. | Chief Executive Officer                
Class of Stock [Line Items]                
Shares contributed by related party (in shares)   5,000,000.0 10,000,000.0          
Common Class A                
Class of Stock [Line Items]                
Common stock, par value (in dollars per share) | $ / shares       $ 0.01        
Voting rights per share | vote       1        
Common stock, shares authorized (in shares)       1,250,000,000        
Common stock, shares outstanding (in shares)       880,500,000        
Shares issued (in shares)       7,800,000 4,400,000 9,800,000    
Common Class A | JAB Beauty B.V.                
Class of Stock [Line Items]                
Parent ownership percentage       54.00%        
Common Class A | Majority Shareholders | JAB Cosmetics B.V.                
Class of Stock [Line Items]                
Open market shares acquired by related party (in shares)       0.0 0.0 3,000,000.0    
Common Class A | Restricted Stock Units | Chief Executive Officer                
Class of Stock [Line Items]                
Common stock, par value (in dollars per share) | $ / shares             $ 0.01