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Fair Value Measurements And Derivative Instruments (Gain Or (Loss) Recognized In Income On Derivatives Not Designated As Hedging Instruments) (Details) (Foreign Currency Contracts [Member], Other Income/(Expense) [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Nov. 30, 2011	Nov. 30, 2010
Foreign Currency Contracts [Member] \| Other Income/(Expense) [Member]
Fair Value Measurements and Derivative Instruments [Line Items]
Amount of Gain or (Loss) Recognized In Income on Derivative	$ 8,426	$ 9,521

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.

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