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Earnings per Common Share (Tables) | 12 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Schedule of calculations of basic and diluted earnings from continuing operations 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 |
Schedule of awards issued under share-based compensation plans excluded from the calculations of diluted earnings per share | 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 Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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