Earnings per Share

3 Months Ended

Jul. 31, 2014

Earnings Per Share [Abstract]

Earnings per Share

Note 8: Earnings per Share

The following table sets forth the computation of net income per common share and net income per common share – assuming dilution under the two-class method.

	Three Months Ended July 31,
	2014		2013
Net income	$	116.0	$	126.6
Net income allocated to participating securities		0.8		1.1
Net income allocated to common stockholders	$	115.2	$	125.5
Weighted-average common shares outstanding		101,028,622		105,077,523
Dilutive effect of stock options		8,471		16,755
Weighted-average common shares outstanding – assuming dilution		101,037,093		105,094,278
Net income per common share	$	1.14	$	1.19
Net income per common share – assuming dilution	$	1.14	$	1.19