Variable Interest Entities (Details) $ in Thousands	Nov. 30, 2018 USD ($) joint_venture	Nov. 30, 2017 USD ($) joint_venture
Variable Interest Entity [Line Items]
Number of Investments in Unconsolidated Joint Ventures | joint_venture	6	7
Cash Deposits	$ 53,830	$ 64,702
Aggregate Purchase Price	1,371,238	1,094,087
Acquisition Costs Related To Land Option Contracts And Other Similar Contracts	46,900	26,800
Increase in inventories and accrued expenses and other liabilities	$ 21,800	$ 5,700
Unconsolidated VIEs [Member]
Variable Interest Entity [Line Items]
Number of Investments in Unconsolidated Joint Ventures | joint_venture	1	1
Cash Deposits	$ 26,542	$ 43,171
Aggregate Purchase Price	784,334	653,858
Other land option contracts and other similar contracts [Member]
Variable Interest Entity [Line Items]
Cash Deposits	27,288	21,531
Aggregate Purchase Price	$ 586,904	$ 440,229