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Earnings Per Share (Tables) | 3 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Basic and Diluted Earnings Per Share | The components of basic and diluted earnings per share were as follows:
|  | Three months ended June 30, |
|  | 2018 |  |  | 2017 |
Net earnings attributable to Modine |  | $ | 22.0 |  |  | $ | 17.0 |
Less: Undistributed earnings attributable to unvested shares |  |  | (0.1 | ) |  |  | (0.2 | )
Net earnings available to Modine shareholders |  | $ | 21.9 |  |  | $ | 16.8 |
Weighted-average shares outstanding - basic |  |  | 50.3 |  |  |  | 49.5 |
Effect of dilutive securities |  |  | 0.9 |  |  |  | 0.6 |
Weighted-average shares outstanding - diluted |  |  | 51.2 |  |  |  | 50.1 |
Earnings per share: |  |  |  |  |  |  |  |
Net earnings per share - basic |  | $ | 0.43 |  |  | $ | 0.34 |
Net earnings per share - diluted |  | $ | 0.43 |  |  | $ | 0.34 |

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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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