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Earnings Per Share (Tables) | 6 Months Ended
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Jan. 31, 2014
Earnings Per Share [Abstract] |
Schedule of numerators and denominators used in basic and diluted EPS calculations | The following table reconciles the numerators and denominators used in the basic and diluted EPS calculations:
|  | Three months ended January 31, |  | Six months ended January 31,
|  | 2014 |  | 2013 |  | 2014 |  | 2013
Numerator: |  |  |  |  |  |  |  |
Net income for basic calculation |  | $ | 5,983,000 |  |  | 2,365,000 |  |  | 11,288,000 |  |  | 9,800,000 |
Effect of dilutive securities: |  |  |  |  |  |  |  |
Interest expense (net of tax) on 3.0% convertible senior notes |  | 1,117,000 |  |  | — |  |  | 2,234,000 |  |  | 2,234,000 |
Numerator for diluted calculation |  | $ | 7,100,000 |  |  | 2,365,000 |  |  | 13,522,000 |  |  | 12,034,000 |
Denominator: |  |  |  |  |  |  |  |
Denominator for basic calculation |  | 15,970,000 |  |  | 17,300,000 |  |  | 16,212,000 |  |  | 17,340,000 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |
Stock-based awards |  | 287,000 |  |  | 101,000 |  |  | 141,000 |  |  | 105,000 |
Conversion of 3.0% convertible senior notes |  | 6,230,000 |  |  | — |  |  | 6,199,000 |  |  | 5,949,000 |
Denominator for diluted calculation |  | 22,487,000 |  |  | 17,401,000 |  |  | 22,552,000 |  |  | 23,394,000 |

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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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