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