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Quarterly Financial Data (Tables) | 12 Months Ended
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May 31, 2012
Quarterly Financial Data [Abstract] |
Summary of the results of operation for each of the quarters within the fiscal year | The following is a summary of the results of operation for each of the quarters within the fiscal years ended May 31, 2012 and 2011:
May 31, 2012 (in thousands) | First Quarter |  | Second Quarter |  | Third Quarter |  | Fourth Quarter
Revenue | $ | 1,017,180 |  |  | $ | 1,019,126 |  |  | $ | 1,012,112 |  |  | $ | 1,053,582 |
Gross margin | $ | 439,040 |  |  | $ | 429,797 |  |  | $ | 425,903 |  |  | $ | 443,868 |
Net income | $ | 68,638 |  |  | $ | 74,350 |  |  | $ | 76,035 |  |  | $ | 78,614 |
Basic earnings per share | $ | 0.52 |  |  | $ | 0.57 |  |  | $ | 0.58 |  |  | $ | 0.60 |
Diluted earnings per share | $ | 0.52 |  |  | $ | 0.57 |  |  | $ | 0.58 |  |  | $ | 0.60 |
Weighted average number of shares outstanding | 131,309 |  |  | 129,727 |  |  | 129,735 |  |  | 128,788 |
May 31, 2011 (in thousands) | First Quarter |  | Second Quarter |  | Third Quarter |  | Fourth Quarter
Revenue | $ | 923,904 |  |  | $ | 936,566 |  |  | $ | 937,827 |  |  | $ | 1,012,087 |
Gross margin | $ | 393,671 |  |  | $ | 390,648 |  |  | $ | 391,921 |  |  | $ | 433,047 |
Net income | $ | 61,277 |  |  | $ | 55,866 |  |  | $ | 59,070 |  |  | $ | 70,776 |
Basic earnings per share | $ | 0.40 |  |  | $ | 0.38 |  |  | $ | 0.41 |  |  | $ | 0.49 |
Diluted earnings per share | $ | 0.40 |  |  | $ | 0.38 |  |  | $ | 0.41 |  |  | $ | 0.49 |
Weighted average number of shares outstanding | 152,164 |  |  | 145,511 |  |  | 145,303 |  |  | 143,317 |

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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 -Topic 270 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (a)-(j) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6952194&loc=d3e1280-108306 + Details
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