Earnings per Share (Tables)

6 Months Ended

Mar. 31, 2018

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 earnings per share computations for the periods presented below.

	Three Months Ended March 31,						Six Months Ended March 31,
(in millions, except share amounts)	2018			2017			2018			2017
Numerator:
Net income	$	22.7		$	11.0		$	15.8		$	17.3
Less: Allocation to participating securities	(0.3		)	(0.2		)	(0.3		)	(0.3		)
Net income allocated to common stockholders	$	22.4		$	10.8		$	15.5		$	17.0
Denominator:
Weighted average number of:
Common shares outstanding	18,559,849			18,404,236			18,502,795			18,325,383
Dilutive potential common shares outstanding:
Share-based awards	299,484			257,182			333,418			312,097
Diluted weighted-average common shares	18,859,333			18,661,418			18,836,213			18,637,480