Inventories (Schedule of Capitalized Interest Costs) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2015	Aug. 31, 2014
Interest Costs
Capitalized interest at beginning of period		$ 299,678	$ 241,583	$ 266,668	$ 216,681
Interest incurred		46,587	44,603	140,789	127,041
Interest Expense		(4,394)	(6,455)	(17,850)	(26,289)
Interest amortized to construction and land costs	[1]	(51,752)	(21,769)	(99,488)	(59,471)
Capitalized interest at end of period	[2]	290,119	$ 257,962	290,119	$ 257,962
Land [Member]
Interest Costs
Interest amortized to construction and land costs	[1]	$ (16,400)		$ (16,400)

[1] (a)Interest amortized to construction and land costs for the three months and nine months ended August 31, 2015 included $16.4 million related to land sales during those periods.

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