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Operating Results of Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jan. 31, 2014 | Jan. 31, 2013 | Jan. 31, 2014 | Jan. 31, 2013
Discontinued Operations: |  |  |  |
Net sales |  | $ 104,995 | $ 83,903 | $ 219,183
Operating income (loss) of discontinued operations | (1,131) | 1,073 | (4,564) | 4,516
Pre-tax gain (loss) on disposal of discontinued business | (746) |  | 7,079 |
Income (loss) before income taxes | (1,877) | 1,073 | 2,515 | 4,516
Income tax expense (benefit) | (851) | 196 | (1,173) | 1,400
Income (loss) from discontinued operations, net of taxes | $ (1,026) | $ 877 | $ 3,688 | $ 3,116

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