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Earnings Per Share Earnings Per Share (Tables) | 6 Months Ended
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Dec. 31, 2017
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 December 31, |  | Six Months Ended December 31,
| 2017 |  | 2016 |  | 2017 |  | 2016
Net Income | $ | 155,574 |  |  | $ | 58,814 |  |  | $ | 218,985 |  |  | $ | 121,058 |
Common share information: |  |  |  |  |  |  |
Weighted average shares outstanding for basic earnings per share | 77,218 |  |  | 77,814 |  |  | 77,250 |  |  | 78,114 |
Dilutive effect of stock options and restricted stock | 347 |  |  | 366 |  |  | 356 |  |  | 398 |
Weighted average shares outstanding for diluted earnings per share | 77,565 |  |  | 78,180 |  |  | 77,606 |  |  | 78,512 |
Basic earnings per share | $ | 2.01 |  |  | $ | 0.76 |  |  | $ | 2.83 |  |  | $ | 1.55 |
Diluted earnings per share | $ | 2.01 |  |  | $ | 0.75 |  |  | $ | 2.82 |  |  | $ | 1.54 |

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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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