Property and Equipment, Net Property and Equipment, Net (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Feb. 28, 2019	Nov. 30, 2019	Nov. 30, 2018	Nov. 30, 2017
Property, Plant and Equipment [Abstract]
Model Furnishings and Sales Office Improvements	[1]		$ 82,117	$ 0
Computer software and equipment			27,091	20,940
Leasehold Improvements, office furniture and equipment	[2]		16,173	23,491
Subtotal			125,381	44,431
Less accumulated depreciation	[1]		(60,338)	(20,148)
Property and equipment, net			65,043	24,283
Proceeds from Sale of Buildings		$ 5,800	$ 5,804	$ 0	$ 0
Deferred Gain on Sale of Property		$ 2,200
Lessee, Operating Lease, Term of Contract		10 years

[1] The balance at November 30, 2019 reflects a change in the classification of certain community sales office and other marketing- and model home-related costs and related accumulated amortization from inventories to property and equipment, net due to our adoption of ASC 606 effective December 1, 2018, as described in Note 1 – Summary of Significant Accounting Policies

[2] In January 2019, we completed the sale and leaseback of our office building in San Antonio, Texas. The sale generated net cash proceeds of $5.8 million and a gain of $2.2 million, which is being recognized on a straight-line basis over a 10-year lease term until our adoption of ASC 842, when the remaining gain will be recognized as a transition adjustment to beginning retained earnings, as described in Note 1 – Summary of Significant Accounting Policies.