Earnings per Common Share (Tables)

3 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Calculated Earnings per Share

Earnings per share are calculated as follows (share information in thousands):

	Quarter Ended December 31
	2018		2017
Net income	$	42.2	$	88.3
Average basic shares outstanding	67,053		65,906
Add potential effect of exercise of stock options and other unvested equity awards	672		1,526
Average diluted shares outstanding	67,725		67,432
Net income per basic common share	$	0.63	$	1.34
Net income per diluted common share	$	0.62	$	1.31
Shares with anti-dilutive effect excluded from the computation of diluted EPS	486		233