Concentration of Risk and Segment Data - Additional Information (Detail)	3 Months Ended
Nov. 30, 2012 Segment Customer Country	Nov. 30, 2011
Segment Reporting Information [Line Items]
Top customers that comprise revenue	5
Percentage of revenue accounted by major customers	51.00%
Number of customers accounted for 90% of its net revenue	56
Percentage of revenue accounted for by customers	90.00%
Number of operating segments	3
Number of operating countries	29
Total foreign net revenue percentage	86.40%	86.70%

Number of customers that accounted for 90% of the Company's revenues.

No definition available.

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- Definition

Disclosure attributable to revenues generated by the Company's top 5 customers.

+ References

No definition available.

+ Details

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- Definition

Percentage of the company's revenue generated by foreign countries outside the U. S.

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No definition available.

+ Details

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Data Type:	num:percentItemType
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Period Type:	duration

- Definition

Disclosure attributable to customers that generated 90% of the Company's revenues.

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No definition available.

+ Details

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Data Type:	num:percentItemType
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- Definition

Percentage of the company's revenue generated by the top 5 customers.

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No definition available.

+ Details

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Data Type:	num:percentItemType
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- Definition

The number of countries in which the entity operates as of balance sheet date.

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No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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Period Type:	instant

- Definition

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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No definition available.

+ Details

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- Details

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