Commitments and Contingencies (Narratives) (Details) $ in Thousands	3 Months Ended
	Feb. 28, 2022 USD ($) executives claim_filed home	Nov. 30, 2021 USD ($)	Nov. 30, 2016 USD ($)
Loss Contingencies [Line Items]
Minimum warranty on electrical and other building systems (in years)	2 years
Maximum warranty on electrical and other building systems (in years)	5 years
Warranty for other components of the home (in years)	1 year
Performance bonds	$ 1,150,000	$ 1,110,000
Letters of credit outstanding	$ 45,300	43,200
Warranty for other components of a home (in years)	1 year
Cash deposits	$ 64,631	74,509
Aggregate purchase price of land	1,731,452	1,859,851
Cost Method Investments, Original Cost	$ 1,800
Cost Method Investments, Number of Executives with Ownership Interests | executives	16
Damages from Product Defects [Member]
Loss Contingencies [Line Items]
Structural warranty provided by the company (in years)	10 years
Minimum number of affected homes for construction defect claims | home	2
Warranty Obligations [Member]
Loss Contingencies [Line Items]
Structural warranty provided by the company (in years)	10 years
Self Insurance [Member]
Loss Contingencies [Line Items]
Recoveries related to warranty and other claims	$ 57,000	$ 57,800
Northern California Townhome Community [Member]
Loss Contingencies [Line Items]
Loss Contingency Accrual			$ 25,000
Loss Contingency, Loss in Period	$ 12,000
Chapter 558 of the Florida Statutes [Member]
Loss Contingencies [Line Items]
Outstanding noticed claims | claim_filed	554