OTHER CURRENT LIABILITIES - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	Jul. 31, 2012	Jul. 31, 2011		Jul. 31, 2010
Other Liabilities Current [Line Items]
Accrued Pricing Liabilities	$ 20,397	$ 30,706	[1]	$ 42,282	[1]

[1] As Restated