v3.25.4
BRBR (Details) - USD ($)
$ in Millions
3 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Sep. 30, 2025
Schedule of Related Party Transactions      
Net Sales $ 2,174.6 $ 1,974.7  
BellRing      
Schedule of Related Party Transactions      
Net Sales 18.1    
BellRing | Receivables, net      
Schedule of Related Party Transactions      
Receivables, net $ 6.6   $ 3.4