Inventories (Schedule of Capitalized Interest Costs) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Aug. 31, 2021	Aug. 31, 2020	Aug. 31, 2021	Aug. 31, 2020
Interest Costs
Capitalized interest at beginning of period		$ 180,065	$ 194,434	$ 190,113	$ 195,738
Interest incurred		29,605	31,054	91,807	93,071
Interest amortized to construction and land costs	[1]	(37,544)	(30,628)	(109,794)	(93,949)
Capitalized interest at end of period		172,126	194,860	172,126	194,860
Land [Member]
Interest Costs
Interest amortized to construction and land costs		$ 0	$ (400)	$ (200)	$ (400)

[1] amortized to construction and land costs related to land sales for the three months ended August 31, 2021. Interest amortized to construction and land costs for the nine months ended August 31, 2021 included $.2 million related to land sales. For the three months and nine months ended August 31, 2020, interest amortized to construction and land costs included $.4 million related to land sales.