Inventories (Schedule of Capitalized Interest Costs) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Aug. 31, 2018	Aug. 31, 2017	Aug. 31, 2018	Aug. 31, 2017
Interest Costs
Capitalized interest at beginning of period		$ 247,276	$ 303,984	$ 262,191	$ 306,723
Interest incurred	[1]	35,228	43,434	115,096	136,857
Interest expense	[1]	0	0	0	(6,307)
Interest amortized to construction and land costs	[2]	(53,288)	(55,204)	(148,071)	(145,059)
Capitalized interest at end of period	[3]	229,216	292,214	229,216	292,214
Loss on early extinguishment of debt				0	5,685
Land [Member]
Interest Costs
Interest amortized to construction and land costs		$ (300)	$ (200)	$ (4,300)	$ (1,800)

[1] Interest incurred and interest expensed for the nine months ended August 31, 2017 included a charge of $5.7 million for the early extinguishment of debt

[2] Interest amortized to construction and land costs for the three months ended August 31, 2018 and 2017 included $.3 million and $.2 million, respectively, related to land sales during those periods. Interest amortized to construction and land costs for the nine months ended August 31, 2018 and 2017 included $4.3 million and $1.8 million, respectively, related to land sales during those periods.

[3] 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.