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Share-Based Compensation (Tables)

3 Months Ended

Nov. 30, 2012

Share-Based Compensation [Abstract]

Summary Of Type And Fair Value Of Share-Based Compensation Awards

	November 30,
	2012						2011
			Grant-Date Fair Value						Grant-Date Fair Value
	# Granted		Per Award				# Granted		Per Award
Stock options	24,684		$	40.09			36,294		$	31.04
RSUs (1)	25,279		$	74.31			33,989		$	57.09
PSUs	13,072		$	74.31			19,386		$	57.09
(1) The RSUs granted in 2012 and 2011 consisted of 2,057 and 2,148, respectively of awards that will be settled in cash.

Schedule of Assumptions Used [Table Text Block]

							Grant Year
							2012			2011
Weighted-average dividend yield							0.6%			0.6%
Weighted-average volatility							56.3%			55.9%
Range of risk-free interest rates							0.4-  1.2%			0.4-  1.7%
Weighted-average expected lives							7 years			7 years

X

- Definition

Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (k)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

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- Definition

Tabular disclosure of the weighted-average grant-date fair value of equity options or other equity instruments granted during the year.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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