Monetary amount specified by the derivative(s). Expressed as an absolute value.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

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Derivative instrument payment of interest rate swaps designated as cash flow hedges.

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Fair Value Adjustment Related To Interest Rate Swap Including Accrued Interest On Interest Rate Swaps

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Interest accrued on interest rate derivatives.

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The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 45

-Subparagraph b(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)

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Interest rate stated in the contractual debt agreement.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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-Topic 210

-SubTopic 10

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-Subparagraph (SX 210.5-02.22(a)(1))

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Date when the debt instrument is scheduled to be fully repaid, which may be presented in a variety of ways (year, month and year, day, month and year, quarter, etc.).

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

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Aggregate notional amount of all foreign currency derivatives designated as hedging instruments in cash flow hedges. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

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Aggregate notional amount of all interest rate derivatives designated as hedging instruments in cash flow hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract.

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Aggregate notional amount of all interest rate derivatives designated as hedging instruments in fair value hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract.

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Derivative Financial Instruments And Hedging Activities (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended				3 Months Ended				3 Months Ended		12 Months Ended
	Aug. 31, 2011	Aug. 31, 2007	Feb. 28, 2011	Aug. 31, 2010	Nov. 30, 2010 5.625% Senior Notes Due In 2020 [Member]	Aug. 31, 2009 7.750% Senior Notes Due 2016 [Member]	Aug. 31, 2011 7.750% Senior Notes Due 2016 [Member]	Feb. 28, 2011 7.750% Senior Notes Due 2016 [Member]	May 31, 2008 8.250% Senior Notes Due 2018 [Member]	Feb. 29, 2008 8.250% Senior Notes Due 2018 [Member]	Aug. 31, 2011 8.250% Senior Notes Due 2018 [Member]	Aug. 31, 2007 8.250% Senior Notes Due 2018 [Member]
Aggregate notional amount outstanding of foreign currency denominated revenues and expenses designated as cash flow hedges	$ 329.8			$ 67.2
Aggregate notional amount outstanding of forward contracts to hedge transactional exposure	591.6			414.5
Existing gains related to foreign currency risk management hedging arrangements	0.6
Existing losses related to interest rate risk management hedging arrangements	4.0
Notional amount of interest rate swaps designated as fair value hedges			200.0
Stated interest rate					5.625%	7.75%		7.75%	8.25%	8.25%		8.25%
Fair value adjustment related to interest rate swap including accrued interest on interest rate swaps							12.2
Accrued interest on interest rate swaps							0.6
Notional amount of interest rate swaps designated as cash flow hedges		400.0
Payment to settle interest rate swaps		$ 43.1
Expiry date					Dec. 15, 2020	Jul. 15, 2016			Mar. 15, 2018	Mar. 15, 2018	Mar. 15, 2018