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Commitments And Contingencies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2012
Commitments and Contingencies Disclosure [Abstract]
Rent expense, net of sub-rental income	$ 6.5us-gaap_OperatingLeasesRentExpenseNet	$ 6.5us-gaap_OperatingLeasesRentExpenseNet	$ 8.7us-gaap_OperatingLeasesRentExpenseNet

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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

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