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Derivative Instruments Recorded at Fair Value on Balance Sheet (Detail) (USD $) In Thousands, unless otherwise specified	Jul. 31, 2012	Oct. 31, 2011
Derivatives, Fair Value [Line Items]
Derivative assets fair value	$ 3,104	$ 1,197
Derivative liabilities fair value	447	1,609
Foreign Exchange Forward | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative assets fair value	2,514	634
Derivative liabilities fair value	367	1,492
Foreign Exchange Forward | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative assets fair value	590	563
Derivative liabilities fair value	$ 80	$ 117

X

- Definition

Fair values as of the balance sheet date for all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments and which are expected to be converted into cash or otherwise disposed of within a year or the normal operating cycle, if longer, net of the effects of master netting arrangements.

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Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and which are expected to be extinguished or otherwise disposed of within a year or the normal operating cycle, if longer, net of the effects of master netting arrangements.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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