Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.2
Summary of Significant Accounting Policies Revenue Recognition - Impact on Income Statement (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]        
Net revenue $ 446.6 [1] $ 446.0 [1] $ 1,321.5 $ 1,295.4
Cost of Goods and Services Sold 298.2 282.5 865.2 817.1
Gross profit 148.4 163.5 456.3 478.3
Operating expenses 90.8 98.3 275.2 285.7
Income before income taxes 43.3 51.4 140.1 86.5
Income tax expense 11.6 15.2 39.9 52.5
Consolidated net income 31.7 $ 36.2 100.2 $ 34.0
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]        
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]        
Net revenue 1.0   (0.1)  
Cost of Goods and Services Sold 1.0   0.0  
Gross profit 0.0   (0.1)  
Income before income taxes 0.0   (0.1)  
Consolidated net income 0.0   (0.1)  
Calculated under Revenue Guidance in Effect before Topic 606 [Member]        
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]        
Net revenue 447.6   1,321.4  
Cost of Goods and Services Sold 299.2   865.2  
Gross profit 148.4   456.2  
Income before income taxes 43.3   140.0  
Consolidated net income $ 31.7   $ 100.1  
[1] We attribute revenue to a geography based upon the location of the business unit that consummates the external sale.