Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.1
Share-Based Compensation - Schedule of stock-based compensation costs (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2021
Mar. 31, 2020
Compensation Related Costs [Abstract]        
Share-based compensation costs $ 6.2 $ 3.4 $ 10.4 $ 5.7
Less impact of income tax benefit 1.4 0.8 2.4 1.3
Share-based compensation costs, net of tax $ 4.8 $ 2.6 $ 8.0 $ 4.4