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Quarterly Results Of Operations (Tables) | 12 Months Ended
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Aug. 31, 2013
Quarterly Results Of Operations [Abstract] |
Schedule of Quarterly Results |
|  | First |  | Second |  | Third |  | Fourth
$ in thousands, except per share amounts |  | Quarter |  | Quarter |  | Quarter |  | Quarter
Year ended August 31, 2013 |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  | $ | 147,370 |  | $ | 175,539 |  | $ | 219,542 |  | $ | 148,397
Cost of operating revenues |  | $ | 104,513 |  | $ | 125,175 |  | $ | 156,506 |  | $ | 109,820
Earnings before income taxes |  | $ | 22,383 |  | $ | 29,488 |  | $ | 39,750 |  | $ | 15,686
Net earnings |  | $ | 14,728 |  | $ | 19,351 |  | $ | 26,063 |  | $ | 10,428
Diluted net earnings per share |  | $ | 1.15 |  | $ | 1.50 |  | $ | 2.01 |  | $ | 0.81
Year ended August 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  | $ | 119,205 |  | $ | 132,134 |  | $ | 172,099 |  | $ | 127,817
Cost of operating revenues |  | $ | 88,957 |  | $ | 95,640 |  | $ | 123,071 |  | $ | 95,069
Earnings before income taxes |  | $ | 4,441 |  | $ | 19,427 |  | $ | 28,587 |  | $ | 12,653
Net earnings |  | $ | 2,921 |  | $ | 12,774 |  | $ | 18,823 |  | $ | 8,759
Diluted net earnings per share |  | $ | 0.23 |  | $ | 1.00 |  | $ | 1.47 |  | $ | 0.68

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- Definition Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=20225539&loc=d3e1280-108306 + Details
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