Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition Narrative (Details)

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Revenue Recognition Narrative (Details) - USD ($)
$ in Millions
9 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Sep. 30, 2021
Revenue from Contract with Customer [Abstract]      
Receivables from long-term manufacturing contracts, net $ 197.0   $ 121.9
Liabilities from long-term manufacturing contracts and advances 253.1   $ 296.6
Revenue recognized on long-term manufacturing contracts and advances liabilities $ 189.8 $ 128.8