Fair Value Measurements (Quantitative Information about Unobservable Inputs, Liabilities) (Details) (Contingent Consideration [Member])	9 Months Ended
Aug. 31, 2013
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Contingent consideration, discount rate	4.80%
Minimum [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Probability milestones associated with contingent consideration will be achieved	95.00%

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

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