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EARNINGS PER SHARE (Tables) | 12 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Calculation of basic and diluted earnings per share | Earnings per share and the weighted-average number of diluted shares are computed as follows (in thousands, except per share data):
|  | Year ended June 30, |
|  | 2018 |  |  | 2017 |  |  | 2016 |
Net income |  | $ | 301,171 |  |  | $ | 163,671 |  |  | $ | 142,799 |
Weighted-average number of basic shares outstanding during the period |  |  | 24,616 |  |  |  | 24,401 |  |  |  | 24,262 |
Dilutive effect of SSARs/stock options and RSUs/restricted shares after application of treasury stock method |  |  | 639 |  |  |  | 668 |  |  |  | 540 |
Weighted-average number of diluted shares outstanding during the period |  |  | 25,255 |  |  |  | 25,069 |  |  |  | 24,802 |
Basic earnings per share |  | $ | 12.23 |  |  | $ | 6.71 |  |  | $ | 5.89 |
Diluted earnings per share |  | $ | 11.93 |  |  | $ | 6.53 |  |  | $ | 5.76 |

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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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