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Earnings Per Share | 12 Months Ended
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Apr. 30, 2018
Earnings Per Share [Abstract] |
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, |  | 2018 |  |  | 2017 |  |  | 2016 |
Net income from continuing operations attributable to shareholders |  | $ | 626,909 |  |  | $ | 420,917 |  |  | $ | 383,553 |
Amounts allocated to participating securities |  | (1,492 | ) |  | (1,005 | ) |  | (718 | )
Net income from continuing operations attributable to common shareholders |  | $ | 625,417 |  |  | $ | 419,912 |  |  | $ | 382,835 |
Basic weighted average common shares |  | 208,824 |  |  | 212,809 |  |  | 249,009 |
Potential dilutive shares |  | 1,389 |  |  | 1,286 |  |  | 1,809 |
Dilutive weighted average common shares |  | 210,213 |  |  | 214,095 |  |  | 250,818 |
Earnings per share from continuing operations attributable to common shareholders: |  |  |  |  |  |
Basic |  | $ | 2.99 |  |  | $ | 1.97 |  |  | $ | 1.54 |
Diluted |  | 2.98 |  |  | 1.96 |  |  | 1.53 |
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 0.6 million, 0.3 million and 0.1 million shares of stock for fiscal years 2018, 2017 and 2016, respectively, as the effect would be antidilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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