Financial Instruments and Fair Value Disclosures - (Unobservable Inputs) (Details) - Income Approach Valuation Technique - Fair Value, Measurements, Nonrecurring - Level 3 $ in Thousands	9 Months Ended
Aug. 31, 2015 USD ($) homes
Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Average selling price \| $	$ 486,000
Absorption rate per quarter (homes) \| homes	9
Discount rate	12.00%
Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Average selling price \| $	$ 1,300,000
Absorption rate per quarter (homes) \| homes	14
Discount rate	20.00%

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=66048111&loc=d3e19207-110258

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