Earnings per Share (Tables)

6 Months Ended

Mar. 31, 2017

Earnings Per Share [Abstract]

Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]

Basic EPS has been computed by dividing net income by the weighted-average number of common shares outstanding.

The following is a reconciliation of the numerator and denominator of the diluted net income per share computations for the periods presented below.

	Three Months Ended March 31,						Six Months Ended March 31,
(in millions, except share amounts)	2017			2016			2017			2016
Numerator:
Net income	$	11.0		$	14.5		$	17.3		$	23.3
Less: Allocation to participating securities	(0.2		)	(0.3		)	(0.3		)	(0.4		)
Net income allocated to common stockholders	$	10.8		$	14.2		$	17.0		$	22.9
Denominator:
Weighted average number of:
Common shares outstanding	18,404,236			18,592,643			18,325,383			18,621,337
Dilutive potential common shares outstanding:
Share-based awards	257,182			162,807			312,097			200,485
Diluted weighted-average shares	18,661,418			18,755,450			18,637,480			18,821,822