Earnings per Share (Tables)

6 Months Ended

Oct. 31, 2018

Computation of earnings per common share, basic and diluted

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 October 31,				Six Months Ended October 31,
	2018		2017		2018		2017
Net income	$	188.5	$	194.6	$	321.5	$	321.4
Less: Net income allocated to participating securities	1.0		1.1		1.7		1.7
Net income allocated to common stockholders	$	187.5	$	193.5	$	319.8	$	319.7
Weighted-average common shares outstanding	113.2		113.0		113.1		113.0
Add: Dilutive effect of stock options	—		—		—		—
Weighted-average common shares outstanding – assuming dilution	113.2		113.0		113.1		113.0
Net income per common share	$	1.66	$	1.71	$	2.83	$	2.83
Net income per common share – assuming dilution	$	1.66	$	1.71	$	2.83	$	2.83