FINANCIAL INSTRUMENTS AND RISKS & UNCERTAINTIES (Details) (USD $) In Thousands, unless otherwise specified	Jul. 31, 2013	Jul. 31, 2012
Derivatives, Fair Value [Line Items]
Derivative asset	$ 301	$ 3,778
Derivative liability	3,066	1,457
Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative asset	0	270
Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liability	1,941	0
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative asset	301	3,508
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liability	1,125	1,457
Net investment Hedge [Member] | Designated as Hedging Instrument [Member] | Long-term Debt [Member]
Nonderivative instruments designated as hedging instruments
Net investment hedge	$ 91,800	$ 115,129