Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.18)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 12
-Article 7

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ 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 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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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.

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Segment Information - Additional Information (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2016 USD ($)	Apr. 30, 2015 USD ($)	Apr. 30, 2016 USD ($) Segment	Apr. 30, 2015 USD ($) Segment	Jul. 31, 2015 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments \| Segment			4
Number of reportable segments \| Segment			4	3
Total assets	$ 396,926		$ 396,926		$ 446,502
Net revenue	96,460	$ 106,234	357,515	$ 441,988
United States
Segment Reporting Information [Line Items]
Total assets	12,000		12,000		12,400
Net revenue	23,700	33,600	88,800	169,900
Ireland
Segment Reporting Information [Line Items]
Total assets	3,700		3,700		3,700
China
Segment Reporting Information [Line Items]
Total assets	3,100		3,100		3,300
Net revenue	26,000	28,200	109,800	100,300
Netherlands
Segment Reporting Information [Line Items]
Total assets	6,000		6,000		$ 5,200
Net revenue	13,500	12,700	51,200	52,600
Czech Republic
Segment Reporting Information [Line Items]
Net revenue	$ 17,800	$ 16,600	$ 58,700	$ 65,400