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CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Jul. 31, 2015 | Jul. 31, 2014 | Jul. 31, 2013
Net sales | $ 1,171,731 | $ 1,225,034 | $ 1,157,792
Cost of products sold | 613,299 | 615,470 | 548,444
Gross margin | 558,432 | 609,564 | 609,348
Operating expenses: |  |  |
Research and development | 36,734 | 35,048 | 33,552
Selling, general and administrative | 422,704 | 452,164 | 427,858
Restructuring charges | 16,821 | 15,012 | 26,046
Impairment charges | 46,867 | 148,551 | 204,448
Total operating expenses | 523,126 | 650,775 | 691,904
Operating income (loss) | 35,306 | (41,211) | (82,556)
Other income and (expense): |  |  |
Investment and other income | 845 | 2,402 | 3,523
Interest expense | (11,156) | (14,300) | (16,641)
Earnings (loss) from continuing operations before income taxes | 24,995 | (53,109) | (95,674)
Income tax expense (benefit) | 20,093 | (4,963) | 42,583
Earnings (loss) from continuing operations | 4,902 | (48,146) | (138,257)
(Loss) earnings from discontinued operations, net of income taxes | (1,915) | 2,178 | (16,278)
Net earnings (loss) | $ 2,987 | $ (45,968) | $ (154,535)
Weighted average common shares outstanding (in thousands): |  |  |
Basic (in shares) | 51,285 | 51,866 | 51,330
Diluted (in shares) | 51,383 | 51,866 | 51,330
Class A Nonvoting Common Stock [Member] |  |  |
Other income and (expense): |  |  |
Earnings (loss) from continuing operations | $ 4,902 | $ (48,238) | $ (138,495)
Earnings per share: |  |  |
Earnings (loss) from continuing operations, per basic share | $ 0.10 | $ (0.93) | $ (2.70)
Earnings (loss) from continuing operations, per diluted share | 0.10 | (0.93) | (2.70)
(Loss) earnings from discontinued operations, per basic share | (0.04) | 0.04 | (0.32)
(Loss) earnings from discontinued operations, per diluted share | (0.04) | 0.04 | (0.32)
Net earnings (loss) per share, basic | 0.06 | (0.89) | (3.02)
Net earnings (loss) per share, diluted | 0.06 | (0.89) | (3.02)
Dividends | $ 0.80 | $ 0.78 | $ 0.76
Class B Voting Common Stock [Member] |  |  |
Other income and (expense): |  |  |
Earnings (loss) from continuing operations | $ 4,107 | $ (49,057) | $ (139,297)
Earnings per share: |  |  |
Earnings (loss) from continuing operations, per basic share | $ 0.08 | $ (0.95) | $ (2.71)
Earnings (loss) from continuing operations, per diluted share | 0.08 | (0.95) | (2.71)
(Loss) earnings from discontinued operations, per basic share | (0.04) | 0.05 | (0.32)
(Loss) earnings from discontinued operations, per diluted share | (0.04) | 0.05 | (0.32)
Net earnings (loss) per share, basic | 0.04 | (0.90) | (3.03)
Net earnings (loss) per share, diluted | 0.04 | (0.90) | (3.03)
Dividends | $ 0.78 | $ 0.76 | $ 0.74

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