Financial Services (Schedule of Assets and Liabilities) (Details) - USD ($) $ in Thousands	Feb. 29, 2016	Nov. 30, 2015	Feb. 28, 2015	Nov. 30, 2014
Assets
Cash and cash equivalents	$ 324,856	$ 560,341	$ 548,079	$ 358,768
Receivables	152,089	152,682
Investments in unconsolidated joint ventures	68,572	71,558
Other assets	113,060	112,774
Total assets	4,922,056	5,015,371
Liabilities
Accounts payable and accrued expenses	650,861	697,184
Total liabilities	1,432	1,817
Financial services [Member]
Assets
Cash and cash equivalents	1,780	1,299	$ 2,438
Receivables	1,201	2,245
Investments in unconsolidated joint ventures	9,853	10,440
Other assets	28	44
Total assets	12,862	14,028
Liabilities
Accounts payable and accrued expenses	$ 1,432	$ 1,817