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Earnings Per Share (Tables) | 9 Months Ended
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Mar. 31, 2013
Earnings Per Share [Abstract] |
Schedule of Earnings per Share | Basic earnings per share are computed by dividing net income by the weighted-average number of common shares outstanding. Diluted earnings per share are computed by dividing net income by the weighted-average number of common and potential common shares outstanding.
| Quarter ended |  | Nine months ended
| March 31, |  | March 31,
| 2013 |  | 2012 |  | 2013 |  | 2012
| (in thousands, except per share data)
Numerator: |  |  |  |  |  |  |
Net Income | $ | 13,978 |  |  | $ | 14,756 |  |  | $ | 47,977 |  |  | $ | 54,503 |
Denominator: |  |  |  |  |  |  |
Weighted-average shares, basic | 27,847 |  |  | 27,489 |  |  | 27,725 |  |  | 27,290 |
Dilutive effect of share-based payments | 177 |  |  | 437 |  |  | 235 |  |  | 419 |
Weighted-average shares, diluted | 28,024 |  |  | 27,926 |  |  | 27,960 |  |  | 27,709 |
Net income per common share, basic | $ | 0.50 |  |  | $ | 0.54 |  |  | $ | 1.73 |  |  | $ | 2.00 |
Net income per common share, diluted | $ | 0.50 |  |  | $ | 0.53 |  |  | $ | 1.72 |  |  | $ | 1.97 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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