Fair value as of the balance sheet date of foreign currency derivative assets, net of foreign currency derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

Name:	us-gaap_ForeignCurrencyDerivativesAtFairValueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Forward Contracts Outstanding (Detail) In Thousands, unless otherwise specified	Aug. 31, 2012 Usd Denominated Forward Contracts USD ($)	Aug. 31, 2012 Usd Denominated Forward Contracts BRL	Aug. 31, 2012 Usd Denominated Forward Contracts GBP (£)	Aug. 31, 2012 Usd Denominated Forward Contracts TWD	Aug. 31, 2012 Usd Denominated Forward Contracts British Pound USD ($)	Aug. 31, 2012 Usd Denominated Forward Contracts Brazilian real USD ($)	Aug. 31, 2012 Usd Denominated Forward Contracts Taiwan Dollar USD ($)	Aug. 31, 2012 Euro Denominated Forward Contracts USD ($)	Aug. 31, 2012 Euro Denominated Forward Contracts AUD	Aug. 31, 2012 Euro Denominated Forward Contracts CAD	Aug. 31, 2012 Euro Denominated Forward Contracts GBP (£)	Aug. 31, 2012 Euro Denominated Forward Contracts JPY (¥)	Aug. 31, 2012 Euro Denominated Forward Contracts KRW	Aug. 31, 2012 Euro Denominated Forward Contracts Australian Dollar USD ($)	Aug. 31, 2012 Euro Denominated Forward Contracts Australian Dollar EUR (€)	Aug. 31, 2012 Euro Denominated Forward Contracts Japanese Yen USD ($)	Aug. 31, 2012 Euro Denominated Forward Contracts Japanese Yen EUR (€)	Aug. 31, 2012 Euro Denominated Forward Contracts South Korean Won USD ($)	Aug. 31, 2012 Euro Denominated Forward Contracts South Korean Won EUR (€)	Aug. 31, 2012 Euro Denominated Forward Contracts Us Dollar USD ($)	Aug. 31, 2012 Euro Denominated Forward Contracts Us Dollar EUR (€)	Aug. 31, 2012 Euro Denominated Forward Contracts British Pound USD ($)	Aug. 31, 2012 Euro Denominated Forward Contracts British Pound EUR (€)	Aug. 31, 2012 Euro Denominated Forward Contracts Canadian Dollar USD ($)	Aug. 31, 2012 Euro Denominated Forward Contracts Canadian Dollar EUR (€)
Derivative [Line Items]
Notional value of forward contracts sold		(1,500)		(31,000)		$ (740)	$ (1,037)	$ (1,000)	(7,000)			¥ (120,000)	(800,000)		€ (5,743)		€ (1,217)		€ (562)		€ (795)
Notional value of forward contracts bought			12,400		19,692					1,000	7,500												9,452		806
Fair value gain (loss)	$ 376				$ 399	$ (15)	$ (8)	$ 256						$ 275		$ 44		$ 17		$ 29		$ (100)		$ (9)