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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Tax on unrealized (loss)/gain on derivative instruments	$ 1,628	$ (7,076)

Tax effect of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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