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Earnings Per Share (Tables) | 9 Months Ended
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Jun. 30, 2013
Earnings Per Share [Abstract] |
Computation Of Basic And Diluted Earnings Per Share |
| Three Months Ended |  | Nine Months Ended
| June 30, |  | June 30,
| 2013 |  | 2012 |  | 2013 |  | 2012
Numerator: |  |  |  |  |  |  |  |  |  |  |
Net income | $ | 9,305 |  | $ | 12,138 |  | $ | 23,508 |  | $ | 17,804
Denominator: |  |  |  |  |  |  |  |  |  |  |
Weighted average basic shares |  | 11,941 |  |  | 11,812 |  |  | 11,932 |  |  | 11,782
Dilutive effect of stock options and restricted stock units |  | 75 |  |  | 49 |  |  | 75 |  |  | 52
Weighted average diluted shares with assumed conversions |  | 12,016 |  |  | 11,861 |  |  | 12,007 |  |  | 11,834
Net earnings per share: |  |  |  |  |  |  |  |  |  |  |
Basic | $ | 0.78 |  | $ | 1.03 |  | $ | 1.97 |  | $ | 1.51
Diluted | $ | 0.77 |  | $ | 1.02 |  | $ | 1.96 |  | $ | 1.50

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- Definition Tabular disclosure of the numerators and the denominators of the basic and diluted per-share (or per-unit) computations for income from continuing operations, including the effect that has been given to preferred dividends. + 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 + Details
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