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Share Repurchases (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	12 Months Ended
	Jan. 03, 2014	Aug. 31, 2014	Aug. 31, 2013
Share Repurchases [Abstract]
Repurchase authorization amount	$ 150.0
Number of shares of common stock repurchased during the period		497,899
Aggregate purchase price of shares repurchased		41.1	0
Remaining amount available under the repurchase program		$ 108.9

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Amount of a stock repurchase plan authorized by an entity's Board of Directors.

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No definition available.

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Amount remaining of a stock repurchase plan authorized by an entity's Board of Directors.

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644



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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



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

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-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

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-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

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-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 30

-Section 45

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