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Net Income Per Common Share (Tables) | 3 Months Ended
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Jun. 30, 2021
Earnings Per Share [Abstract] |
Schedule of Computation of Basic and Diluted Earnings Per Share | The following table sets forth the computation of basic and diluted net income per common share (in millions, except per share amounts):
|  |  | Three Months Ended June 30, |  |
|  |  |  |  |  |  | 2021 |  | 2020 |  |  |  |
Net income |  |  |  |  |  |  | $ | 252.8 |  |  | $ | 123.6 |  |  |  |  |
Basic weighted average common shares outstanding |  |  |  |  |  |  | 273.8 |  |  | 247.7 |  |  |  |  |
Dilutive effect of stock options and RSUs |  |  |  |  |  |  | 3.9 |  |  | 2.9 |  |  |  |  |
Dilutive effect of 2015 Senior Convertible Debt |  |  |  |  |  |  | 2.1 |  |  | 7.2 |  |  |  |  |
Dilutive effect of 2017 Senior Convertible Debt |  |  |  |  |  |  | 2.0 |  |  | — |  |  |  |  |
Dilutive effect of 2017 Junior Convertible Debt |  |  |  |  |  |  | 0.8 |  |  | — |  |  |  |  |
Diluted weighted average common shares outstanding |  |  |  |  |  |  | 282.6 |  |  | 257.8 |  |  |  |  |
Basic net income per common share |  |  |  |  |  |  | $ | 0.92 |  |  | $ | 0.50 |  |  |  |  |
Diluted net income per common share |  |  |  |  |  |  | $ | 0.89 |  |  | $ | 0.48 |  |  |  |  |
Schedule of Convertible Debt | The following is the weighted average conversion price per share used in calculating the dilutive effect (see Note 6 for details on the Convertible Debt):
|  |  | Three Months Ended June 30, |  |
|  |  |  |  |  |  | 2021 |  | 2020 |  |  |  |
2015 Senior Convertible Debt |  |  |  |  |  |  | $ | 60.46 |  |  | $ | 61.21 |  |  |  |  |
2017 Senior Convertible Debt |  |  |  |  |  |  | $ | 94.28 |  |  | $ | 95.45 |  |  |  |  |
2020 Senior Convertible Debt |  |  |  |  |  |  | $ | 186.82 |  |  | $ | — |  |  |  |  |
2017 Junior Convertible Debt |  |  |  |  |  |  | $ | 92.62 |  |  | $ | 93.77 |  |  |  |  |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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