Earnings per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Earnings per Common Share [Abstract]
Net income attributable to common shareholders	$ 4.8	$ 12.1
Average shares outstanding - Basic	65,217	57,137
Add potential effect of exercise of stock options and other unvested equity awards	1,057	1,017
Average shares outstanding - Diluted	66,274	58,154
Net income attributable to common shareholders per common share - Basic	$ 0.07	$ 0.21
Net income attributable to common shareholders per common share - Diluted	$ 0.07	$ 0.21
Shares with anti-dilutive effect excluded from the computation of Diluted EPS	453	461