Inventories (Schedule of Capitalized Interest Costs) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2020	Aug. 31, 2019
Interest Costs
Capitalized interest at beginning of period		$ 194,434	$ 212,160	$ 195,738	$ 209,129
Interest incurred		31,054	36,024	93,071	107,356
Interest amortized to construction and land costs	[1]	(30,628)	(38,558)	(93,949)	(106,859)
Capitalized interest at end of period	[2]	194,860	209,626	194,860	209,626
Land [Member]
Interest Costs
Interest amortized to construction and land costs		$ (400)	$ 0	$ (400)	$ (600)

[1]
(a) Interest amortized to construction and land costs for the three months and nine months ended August 31, 2020 included $.4 million related to land sales during the periods. Interest amortized to construction and land costs for the nine months ended August 31, 2019 included

[2] b) Capitalized interest amounts reflect the gross amount of capitalized interest, as inventory impairment charges recognized, if any, are not generally allocated to specific components of inventory.