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Quarterly Financial Data (Unaudited) | 12 Months Ended
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May 31, 2012
Quarterly Financial Data [Abstract] |
Quarterly Financial Data | Quarterly Financial Data (Unaudited) 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 The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section G -Subsection 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e725-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 28 -Paragraph 23, 24 -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e765-108305 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 28 -Paragraph 30 -Subparagraph a-j -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 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 302 -Paragraph a Reference 7: 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=6952194&loc=d3e1280-108306 + Details
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