Earnings per Share (Tables)

3 Months Ended

Dec. 31, 2017

Earnings Per Share [Abstract]

Reconciliation of basic average common shares outstanding

A reconciliation of basic average common shares outstanding to diluted average common shares outstanding is as follows (in millions):

	Three Months Ended December 31,
	2017	2016
Basic average common shares outstanding	88.6	87.1
Impact of restricted shares, restricted share units and performance share units	—	1.4
Impact of convertible notes	—	—
Diluted average common shares outstanding	88.6	88.5