Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies Revenue Recognition - Impact on Income Statement (Details)

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Summary of Significant Accounting Policies Revenue Recognition - Impact on Income Statement (Details) - USD ($)
$ in Millions
3 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Net revenue $ 566.9 $ 410.3
Cost of goods sold 395.1 263.3
Gross profit 171.8 147.0
Operating expenses 157.4 90.7
Income before income taxes (13.2) 43.5
Income tax (benefit) expense (12.4) 14.5
Consolidated net (loss) income $ (0.8) $ 29.0