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Consolidated Statements Of Equity And Comprehensive Income (Loss) (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Nov. 30, 2011	Nov. 30, 2010	Nov. 30, 2009
Consolidated Statements Of Equity And Comprehensive Income (Loss) [Abstract]
Foreign currency translation adjustment, tax	$ (217)	$ 2,772	$ (3,119)

Tax effect of the adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

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