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Net Earnings Per Share | 12 Months Ended
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Aug. 31, 2013
Net Earnings Per Share [Abstract] |
Net Earnings Per Share | D. NET EARNINGS PER SHARE The following table shows the computation of basic and diluted net earnings per share for the years ended August 31, 2013, 2012 and 2011:
|  | For the years ended August 31,
($ and shares in thousands, except per share amounts) |  | 2013 |  | 2012 |  | 2011
Numerator: |  |  |  |  |  |  |  |  |
Net earnings |  | $ | 70,570 |  | $ | 43,277 |  | $ | 36,802
Denominator: |  |  |  |  |  |  |  |  |
Weighted average shares outstanding |  |  | 12,830 |  |  | 12,704 |  |  | 12,560
Diluted effect of stock equivalents |  |  | 71 |  |  | 106 |  |  | 132
Weighted average shares outstanding assuming dilution |  |  | 12,901 |  |  | 12,810 |  |  | 12,692
Basic net earnings per share |  | $ | 5.50 |  | $ | 3.41 |  | $ | 2.93
Diluted net earnings per share |  | $ | 5.47 |  | $ | 3.38 |  | $ | 2.90
Certain stock options and restricted stock units were excluded from the computation of diluted net earnings per share because their effect would have been anti-dilutive. Performance stock units are excluded from the calculation of dilutive potential common shares until the threshold performance conditions have been satisfied. Items excluded from the calculation were not significant for the years ended August 31, 2013, 2012 and 2011.

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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FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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