Inventories (Schedule of Capitalized Interest Costs) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		May 31, 2018	May 31, 2017	May 31, 2018	May 31, 2017
Interest Costs
Capitalized interest at beginning of period		$ 259,785	$ 311,111	$ 262,191	$ 306,723
Interest incurred	[1]	39,924	43,344	79,868	93,423
Interest expense	[1]	0	0	0	(6,307)
Interest amortized to construction and land costs	[2]	(52,433)	(50,471)	(94,783)	(89,855)
Capitalized interest at end of period	[3]	247,276	303,984	247,276	303,984
Loss on early extinguishment of debt				0	5,685
Land [Member]
Interest Costs
Interest amortized to construction and land costs		$ (3,100)	$ (1,100)	$ (4,100)	$ (1,600)

[1] Interest incurred and interest expensed for the six months ended May 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 May 31, 2018 and 2017 included $3.1 million and $1.1 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.