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Other Benefit Plans (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Aug. 31, 2012	Aug. 31, 2011	Aug. 31, 2010
Other Benefit Plans (Additional Textual) [Abstract]
Maximum amount the Company will contribute to participant	50.00%
Amount of employee contribution to receive 50% matching	6.60%
Fixed non-elective contribution amount, percent of eligible compensation	10.00%
Discretionary non-elective contribution amount, percent of eligible compensation	5.00%
Profit Sharing/401 (k) Plan [Member]
Other Benefit Plans (Textual) [Abstract]
Contribution expense	$ 2.6	$ 2.3	$ 2.3
International Plans [Member]
Other Benefit Plans (Textual) [Abstract]
Contribution expense	$ 1.1	$ 1.0	$ 0.9

X

- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 11

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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X

- Definition

Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan.

+ References

No definition available.

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- Definition

Defined contribution plan, amount of employee contribution to receive fifty percent matching.

+ References

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- Definition

Discretionary non-elective contribution amount, percent of eligible compensation.

+ References

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- Definition

Fixed non-elective contribution amount, percent of eligible compensation.

+ References

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