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Earnings per Share | 9 Months Ended
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Jan. 31, 2020
Earnings Per Share [Abstract] |
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 January 31, |  |  |  | Nine Months Ended January 31, |  |
| 2020 |  | 2019 |  | 2020 |  | 2019
Net income | $ | 187.4 |  |  | $ | 121.4 |  |  | $ | 553.2 |  |  | $ | 442.9 |
Less: Net income allocated to participating securities | 1.1 |  |  | 0.6 |  |  | 3.2 |  |  | 2.3 |
Net income allocated to common stockholders | $ | 186.3 |  |  | $ | 120.8 |  |  | $ | 550.0 |  |  | $ | 440.6 |
Weighted-average common shares outstanding | 113.4 |  |  | 113.2 |  |  | 113.3 |  |  | 113.1 |
Add: Dilutive effect of stock options | — |  |  | — |  |  | — |  |  | — |
Weighted-average common shares outstanding – assuming dilution | 113.4 |  |  | 113.2 |  |  | 113.3 |  |  | 113.1 |
Net income per common share | $ | 1.64 |  |  | $ | 1.07 |  |  | $ | 4.85 |  |  | $ | 3.89 |
Net income per common share – assuming dilution | $ | 1.64 |  |  | $ | 1.07 |  |  | $ | 4.85 |  |  | $ | 3.89 |

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