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Goodwill And Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Jul. 31, 2015 | Jul. 31, 2014
Indefinite-lived Intangible Assets [Line Items] |  |
Intangible assets, net | $ 37,870 | $ 36,045
Patents Trademarks And Tradenames [Member] |  |
Indefinite-lived Intangible Assets [Line Items] |  |
Intangible assets, net | $ 8,800 | 11,500
Weighted average life | 7 years |
Customer Relationships [Member] |  |
Indefinite-lived Intangible Assets [Line Items] |  |
Intangible assets, net | $ 29,100 | $ 24,500
Weighted average life | 9 years 10 months 24 days |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Details
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- Details
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