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Summary of Significant Accounting Policies Sales Incentives (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jul. 31, 2015 | Jul. 31, 2014 | Jul. 31, 2013
Accounting Policies [Abstract] |  |  |
Sales Incentives | $ 36,591 | $ 36,175 | $ 28,000

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- Definition Primarily represents commissions incurred in the period based upon the sale by commissioned employees or third parties of the entity's goods or services, and fees for sales assistance or product enhancements performed by third parties (such as a distributor or value added reseller). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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