Financial Services (Schedule of Assets and Liabilities) (Details) - USD ($) $ in Thousands	May. 31, 2015	Nov. 30, 2014	May. 31, 2014	Nov. 30, 2013
Assets
Cash and cash equivalents	$ 442,088	$ 358,768	$ 487,270	$ 532,523
Receivables	151,578	125,488
Investments in unconsolidated joint ventures	77,935	79,441
Other assets	117,745	114,915
Total assets	5,039,060	4,757,550
Liabilities
Accounts payable and accrued expenses	601,729	582,598
Total liabilities	1,985	2,517
Financial services [Member]
Assets
Cash and cash equivalents	2,168	2,402	$ 2,798
Receivables	681	1,738
Investments in unconsolidated joint ventures	8,514	6,149
Other assets	102	197
Total assets	11,465	10,486
Liabilities
Accounts payable and accrued expenses	$ 1,985	$ 2,517