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Condensed Consolidated Statements of Income and Comprehensive Income (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended
--- | ---
Oct. 31, 2014 | Oct. 31, 2013
Net sales | $ 921,992 | $ 799,963
Cost of products sold | 804,327 | 694,780
Gross profit | 117,665 | 105,183
Selling, general and administrative expenses | 57,989 | 48,341
Amortization of intangible assets | 3,689 | 2,838
Impairment charges |  | 710
Interest income | 367 | 510
Interest expense |  | 5
Other income, net | 352 | 642
Income from continuing operations before income taxes | 56,706 | 54,441
Income taxes | 17,505 | 18,047
Net income from continuing operations | 39,201 | 36,394
Income (loss) from discontinued operations, net of income taxes | (276) | 4,714
Net income | 38,925 | 41,108
Weighted average common shares outstanding: |  |
Basic | 53,336,592 | 53,205,004
Diluted | 53,433,447 | 53,299,476
Earnings per common share from continuing operations: |  |
Basic | $ 0.73 | $ 0.68
Diluted | $ 0.73 | $ 0.68
Earnings (loss) per common share from discontinued operations: |  |
Basic | $ 0.00 | $ 0.09
Diluted | $ 0.00 | $ 0.09
Earnings per common share: |  |
Basic | $ 0.73 | $ 0.77
Diluted | $ 0.73 | $ 0.77
Net income | 38,925 | 41,108
Unrealized appreciation on investments, net of income tax |  | 22
Comprehensive income | $ 38,925 | $ 41,130
Regular Dividend |  |
Earnings per common share: |  |
Dividends paid per common share | $ 0.27 | $ 0.23
Special Dividend |  |
Earnings per common share: |  |
Dividends paid per common share | $ 0.00 | $ 1.00

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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=6519514 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Comprehensive Income -URI http://asc.fasb.org/extlink&oid=35737396 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e557-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=6518256 + Details
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