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Investments in Unconsolidated Joint Ventures (Information for Investments in Unconsolidated Joint Ventures) (Details) $ in Thousands | 9 Months Ended |
--- | --- | ---
Aug. 31, 2019 USD ($) lot joint_venture | Nov. 30, 2018 USD ($) lot joint_venture
Schedule of Equity Method Investments [Line Items] |  |
Number of investments in unconsolidated joint ventures | 6 | 6
Investments in unconsolidated joint ventures | $ | $ 57,168 | $ 61,960
Number of Unconsolidated Joint Venture Lots Controlled Under Land Option Contracts | lot | 8 | 36
Number of Units in Real Estate Property | lot | 8 |
Long-term Purchase, Commitment, Amount | $ | $ 3,800 |
Investments in Unconsolidated Joint Ventures with Debt [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Number of investments in unconsolidated joint ventures | 1 | 1
Investments in Unconsolidated Joint Ventures with Purchase Commitments [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Number of investments in unconsolidated joint ventures | 1 |

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