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Earnings per Common Share | 12 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Earnings per Common Share | Earnings per Common Share The calculations of basic and diluted earnings per common share for the years ended June 30, 2018, 2017 and 2016 were as follows:
|  | Years Ended June 30,
(in millions, except per share data) |  | 2018 |  | 2017 |  | 2016
Net income |  | $ | 188.5 |  |  | $ | 47.0 |  |  | $ | 11.3 |
Less: earnings and dividends allocated to participating securities |  | (1.7 | ) |  | (0.3 | ) |  | (0.1 | )
Earnings available for common shareholders used in calculation of basic earnings per share |  | $ | 186.8 |  |  | $ | 46.7 |  |  | $ | 11.2 |
Weighted average number of common shares outstanding, basic |  | 47.2 |  |  | 47.0 |  |  | 48.1 |
Basic earnings per common share |  | $ | 3.96 |  |  | $ | 0.99 |  |  | $ | 0.23 |
Net income |  | $ | 188.5 |  |  | $ | 47.0 |  |  | $ | 11.3 |
Less: earnings and dividends allocated to participating securities |  | (1.7 | ) |  | (0.3 | ) |  | (0.1 | )
Earnings available for common shareholders used in calculation of diluted earnings per share |  | $ | 186.8 |  |  | $ | 46.7 |  |  | $ | 11.2 |
Weighted average number of common shares outstanding, basic |  | 47.2 |  |  | 47.0 |  |  | 48.1 |
Effect of shares issuable under share-based compensation plans |  | 0.4 |  |  | 0.1 |  |  | 0.1 |
Weighted average number of common shares outstanding, diluted |  | 47.6 |  |  | 47.1 |  |  | 48.2 |
Diluted earnings per common share |  | $ | 3.92 |  |  | $ | 0.99 |  |  | $ | 0.23 |
The following awards issued under share-based compensation plans were excluded from the calculations of diluted earnings per share above because their effects were anti-dilutive:
|  | Years Ended June 30,
(in millions) |  | 2018 |  | 2017 |  | 2016
Stock options |  | 0.7 |  |  | 1.9 |  |  | 1.5 |

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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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