Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies Improving the Presentation of Net Periodic Pension Cost (Details)

v3.19.2
Summary of Significant Accounting Policies Improving the Presentation of Net Periodic Pension Cost (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
2017 Periodic Pension Cost Restatement   $ (0.2)  
Accounting Standards Update 2017-07 [Member] | Cost of Goods, Total [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
2017 Periodic Pension Cost Restatement $ 0.2   $ 0.4
Accounting Standards Update 2017-07 [Member] | Operating expense      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
2017 Periodic Pension Cost Restatement $ (0.1)   $ (0.2)