Earnings per Share - EPS Reconciliation (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share [Abstract]
Income (Loss) from Continuing Operations Attributable to Parent	$ 2.8	$ 4.7	$ 17.6	$ 6.7
Undistributed Earnings Allocated to Participating Securities - Continuing Ops	(0.1)	(0.2)	(0.7)	(0.1)
Income from continuing operations allocated to common stockholders	2.7	4.5	16.9	6.6
Net Income (Loss) Available to Common Stockholders, Diluted	2.8	4.7	17.6	6.7
Undistributed Earnings Allocated to Participating Securities	(0.1)	(0.2)	(0.7)	(0.1)
Diluted net income allocated to common stockholders	$ 2.7	$ 4.5	$ 16.9	$ 6.6
Weighted Average Number of Shares Outstanding, Basic	18,480,644	18,392,823	18,377,965	18,286,308
Stock Options And Warrants For Diluted Earnings Per Share Calculation	383,396	705,844	484,907	870,163
Diluted weighted-average shares	18,864,040	19,098,667	18,862,872	19,156,471