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Revenue - Schedule of Changes in Deferred Revenue (Details)
$ in Millions
6 Months Ended
Mar. 31, 2023
USD ($)
Revenue from Contract with Customer [Abstract]  
Balance, September 30, 2021 $ 59.3
Recognition of revenue (513.4)
Deferral of revenue 542.4
Balance, june 30, 2022 $ 88.3