Financial Services (Schedule of Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	May 31, 2014		May 31, 2013		May 31, 2014		May 31, 2013
Revenues
Insurance commissions	$ 1,270		$ 1,487		$ 2,532		$ 2,790
Title services	891		680		1,599		1,329
Marketing services fees	450		450		900		900
Interest income	0		1		0		2
Total	2,611		2,618		5,031		5,021
Expenses
General and administrative	(852)		(636)		(1,704)		(1,471)
Operating income	34,292		8,691		52,011		9,145
Equity in income (loss) of unconsolidated joint ventures					1,900		85
Total pretax income (loss)	26,924		(4,173)		37,687		(16,531)
Financial services [Member]
Expenses
Operating income	1,759		1,982		3,327		3,550
Equity in income (loss) of unconsolidated joint ventures	(6)	[1]	(4)	[1]	(12)	[1]	1,087	[1]
Total pretax income (loss)	$ 1,753		$ 1,978		$ 3,315		$ 4,637

[1] Equity in income of unconsolidated joint ventures for the six months ended May 31, 2013 related to the wind down of KBA Mortgage, LLC (“KBA Mortgage”), our unconsolidated mortgage banking joint venture with a subsidiary of Bank of America, N.A., which ceased offering mortgage banking services in 2011.