Inventories (Schedule of Capitalized Interest Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Feb. 28, 2015		Feb. 28, 2014
Interest Costs
Capitalized interest at beginning of period	$ 266,668		$ 216,681
Interest incurred	45,003		39,280
Interest Expense	(5,338)		(11,276)
Interest amortized to construction and land costs	(22,293)		(17,485)
Capitalized interest at end of period	$ 284,040	[1]	$ 227,200	[1]

[1] 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.