Income Before Income Taxes (Detail) (USD $)	12 Months Ended
Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Schedule of Components of Income Before Income Tax Expense (Benefit) [Line Items]
Domestic	$ 900,000	$ 24,900,000	$ 30,200,000
Foreign	28,100,000	19,200,000	14,000,000
Income before income taxes	$ 29,038,000	$ 44,097,000	$ 44,199,000

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The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h)(1)(i))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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- Definition

The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

+ References

+ Details

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- Definition

Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

+ References

+ Details

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