Inventories (Schedule of Capitalized Interest Costs) (Details) - USD ($) $ in Thousands		3 Months Ended
		Feb. 29, 2016	Feb. 28, 2015
Interest Costs
Capitalized interest at beginning of period		$ 288,442	$ 266,668
Interest incurred		46,251	45,003
Interest Expense		(3,697)	(5,338)
Interest amortized to construction and land costs	[1]	(30,682)	(22,293)
Capitalized interest at end of period	[2]	300,314	$ 284,040
Land [Member]
Interest Costs
Interest amortized to construction and land costs		$ (500)

[1] (a)Interest amortized to construction and land costs for the three months ended February 29, 2016 included $.5 million related to land sales during the period

[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.