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Earnings Per Share (Tables) | 6 Months Ended
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Dec. 31, 2013
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
| Three Months Ended December 31, |  | Six Months Ended December 31,
| 2013 |  | 2012 |  | 2013 |  | 2012
Net Income | $ | 53,982 |  |  | $ | 40,505 |  |  | $ | 103,770 |  |  | $ | 82,981 |
Common share information: |  |  |  |  |  |  |
Weighted average shares outstanding for basic earnings per share | 85,450 |  |  | 86,084 |  |  | 85,372 |  |  | 86,097 |
Dilutive effect of stock options and restricted stock | 536 |  |  | 555 |  |  | 548 |  |  | 525 |
Weighted average shares outstanding for diluted earnings per share | 85,986 |  |  | 86,639 |  |  | 85,920 |  |  | 86,622 |
Basic earnings per share | $ | 0.63 |  |  | $ | 0.47 |  |  | $ | 1.22 |  |  | $ | 0.96 |
Diluted earnings per share | $ | 0.63 |  |  | $ | 0.47 |  |  | $ | 1.21 |  |  | $ | 0.96 |

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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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