Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation - Schedule of stock-based compensation costs (Details)

v3.10.0.1
Share-Based Compensation - Schedule of stock-based compensation costs (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Compensation Related Costs [Abstract]        
Share-based compensation costs $ 2.6 $ 2.4 $ 8.8 $ 8.1
Less impact of income tax benefit 0.7 0.9 2.3 2.9
Share-based compensation costs, net of tax $ 1.9 $ 1.5 $ 6.5 $ 5.2