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Earnings (Loss) Per Share (Narrative) (Details)	12 Months Ended	0 Months Ended
Earnings (Loss) Per Share (Narrative) (Details)	Nov. 30, 2013	Jan. 29, 2013	Nov. 30, 2014
Debt Instrument [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	5,200,000
Convertible senior notes due February 1, 2019 at 1.375%
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.375%	1.375%	1.375%
Convertible Notes Payable [Member] \| Convertible senior notes due February 1, 2019 at 1.375%
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.375%		1.375%
Debt Conversion, Converted Instrument, Shares Issued		36.5297

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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