XML 63 R60.htm IDEA: XBRL DOCUMENT

Financial instruments - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Derivative [Line Items]
Maturity of foreign currency forward contracts	90 days
Gains (loss) on foreign exchange contracts	$ 3,512	$ (976)
Gains (losses) in fair value of balance sheet positions denominated in foreign currencies	$ (5,027)	$ 1,151

Aggregate impact of foreign currency derivatives on earnings for the period. Includes impact of foreign currency cash flow hedge ineffectiveness and the ineffectiveness of fair value hedging derivatives and full change in fair value of the foreign currency derivatives not designated as hedging instruments.

+ References+ Details