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Earnings Per Share Earnings Per Share (Tables) | 9 Months Ended
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Mar. 31, 2018
Earnings Per Share, Basic and Diluted [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | The following table reflects the reconciliation between basic and diluted earnings per share.
| Three Months Ended March 31, |  | Nine Months Ended March 31,
| 2018 |  | 2017 |  | 2018 |  | 2017
Net Income | $ | 72,395 |  |  | $ | 60,044 |  |  | $ | 291,380 |  |  | $ | 181,102 |
Common share information: |  |  |  |  |  |  |
Weighted average shares outstanding for basic earnings per share | 77,247 |  |  | 77,597 |  |  | 77,249 |  |  | 77,941 |
Dilutive effect of stock options and restricted stock | 299 |  |  | 335 |  |  | 337 |  |  | 378 |
Weighted average shares outstanding for diluted earnings per share | 77,546 |  |  | 77,932 |  |  | 77,586 |  |  | 78,319 |
Basic earnings per share | $ | 0.94 |  |  | $ | 0.77 |  |  | $ | 3.77 |  |  | $ | 2.32 |
Diluted earnings per share | $ | 0.93 |  |  | $ | 0.77 |  |  | $ | 3.76 |  |  | $ | 2.31 |

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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/2003/role/presentationRef -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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