Earnings Per Share

12 Months Ended

Apr. 30, 2013

Earnings Per Share [Abstract]

Earnings Per Share

EARNINGS PER SHARE

Basic and diluted earnings per share is computed using the two-class method. The two-class method is an earnings allocation formula that determines net income per share for each class of common stock and participating security according to dividends declared and participation rights in undistributed earnings. Per share amounts are computed by dividing net income from continuing operations attributable to common shareholders by the weighted average shares outstanding during each period.

The computations of basic and diluted earnings per share from continuing operations are as follows:

(in 000s, except per share amounts)
Year ended April 30,	2013			2012			2011
Net income from continuing operations attributable to shareholders	$	465,158		$	345,968		$	392,547
Net income allocated to participating securities	(542		)	(455		)	(1,007		)
Net income from continuing operations attributable to common shareholders	$	464,616		$	345,513		$	391,540
Basic weighted average common shares	273,057			297,863			309,230
Potential dilutive shares	1,302			738			547
Dilutive weighted average common shares	274,359			298,601			309,777
Earnings per share from continuing operations attributable to common shareholders:
Basic	1.70			1.16			1.27
Diluted	1.69			1.16			1.27

Diluted earnings per share excludes the impact of shares of common stock issuable upon the lapse of certain restrictions or the exercise of options to purchase 3.3 million, 8.9 million and 12.8 million shares of stock for fiscal years 2013, 2012 and 2011, respectively, as the effect would be antidilutive.