Quarterly report pursuant to Section 13 or 15(d)

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

v3.4.0.3
Share-Based Compensation - Schedule of stock-based compensation costs (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2016
Mar. 31, 2015
Compensation Related Costs [Abstract]        
Share-based compensation costs $ 3.1 $ 4.1 $ 3.7 $ 6.3
Less impact of income tax benefit 1.2 1.5 1.4 2.3
Share-based compensation costs, net of tax $ 1.9 $ 2.6 $ 2.3 $ 4.0