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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Millions
Jun. 30, 2023
Sep. 30, 2022
Jun. 30, 2022
Statement of Financial Position [Abstract]      
Accounts Receivable, Allowance for Credit Loss, Current $ 6.4 $ 5.6  
Preferred Stock, Shares Authorized 60,000,000 60,000,000  
Preferred Stock, Shares Outstanding 0 0  
Preferred Stock, Par or Stated Value Per Share $ 0.01   $ 0.01
Common Stock, Par or Stated Value Per Share $ 0.01 $ 0.01  
Series A common stock, shares authorized 600,000,000 600,000,000  
Common Stock, Shares, Outstanding 156,424,123 155,844,138