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Net Income Per Share | 12 Months Ended
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Jun. 30, 2013
Earnings Per Share [Abstract] |
Net Income Per Share | PER SHARE Basic earnings per share are computed by dividing net income by the weighted average number of Common Shares outstanding during the period. Diluted earnings per share are computed by dividing net income by the shares used in the calculation of basic earnings per share plus the dilutive effect of Common Share equivalents, such as stock options, using the treasury stock method. Common Share equivalents are excluded from the computation of diluted net income per share if their effect is anti-dilutive.
|  | Year Ended June 30,
|  | 2013 |  | 2012 |  | 2011
Basic earnings per share |  |  |  |  |  |
Net income |  | $ | 148,520 |  |  | $ | 125,174 |  |  | $ | 123,203 |
Basic earnings per share |  | $ | 2.53 |  |  | $ | 2.16 |  |  | $ | 2.16 |
Diluted earnings per share |  |  |  |  |  |
Net income |  | $ | 148,520 |  |  | $ | 125,174 |  |  | $ | 123,203 |
Diluted earnings per share |  | $ | 2.51 |  |  | $ | 2.13 |  |  | $ | 2.11 |
Weighted-average number of shares outstanding |  |  |  |  |  |
Basic |  | 58,604 |  |  | 57,890 |  |  | 57,077 |
Effect of dilutive securities |  | 458 |  |  | 844 |  |  | 1,183 |
Diluted |  | 59,062 |  |  | 58,734 |  |  | 58,260 |
Excluded as anti-dilutive* |  | 1,131 |  |  | 368 |  |  | 48 |
* Represents options to purchase Common Shares excluded from the calculation of diluted net income per share because the exercise price of the stock options was greater than or equal to the average price of the Common Shares during the period.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=16381557&loc=d3e4984-109258 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 + Details
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