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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

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- Definition

Aggregate notional amount of foreign currency contracts entered during the reporting period. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

+ References

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

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- Definition

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.

+ References

Reference 1: 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

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FINANCIAL INSTRUMENTS AND RISKS & UNCERTAINTIES (Details Textuals)			12 Months Ended
	Jul. 31, 2013 USD ($)	Jul. 31, 2013 Foreign Exchange Forward [Member] USD ($)	Jul. 31, 2013 Not Designated as Hedging Instrument [Member] Foreign Exchange Forward [Member] USD ($)	Jul. 31, 2012 Not Designated as Hedging Instrument [Member] Foreign Exchange Forward [Member] USD ($)	Jul. 31, 2013 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Foreign Exchange Forward [Member] USD ($)	Jul. 31, 2012 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Foreign Exchange Forward [Member] USD ($)	May 26, 2010 Unsecured Debt [Member] Jpy Loan Due Fiscal Year 2015 [Member] JPY (¥)
Derivative [Line Items]
Notional amount of foreign currency forward contracts		$ 414,981,000	$ 316,660,000		$ 98,321,000	$ 77,557,000
Fair value of foreign currency forward contracts	2,765,000
Loan obtained during the fourth quarter							9,000,000,000
Notional amount of foreign currency forward contracts entered during the period			$ 2,414,999,000	$ 2,781,113,000