Financial Services (Schedule of Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	May 31, 2014	Nov. 30, 2013	May 31, 2013	Nov. 30, 2012
Assets
Cash and cash equivalents	$ 487,270	$ 532,523	$ 541,206	$ 525,688
Receivables	99,779	75,749
Investments in unconsolidated joint ventures	67,594	130,192
Other assets	116,558	107,076
Total assets	3,828,026	3,193,635
Liabilities
Accounts payable and accrued expenses	542,519	504,458
Total liabilities	1,854	2,593
Financial services [Member]
Assets
Cash and cash equivalents	2,798	2,428	2,635
Receivables	764	2,084
Investments in unconsolidated joint ventures	5,477	5,490
Other assets	229	38
Total assets	9,268	10,040
Liabilities
Accounts payable and accrued expenses	$ 1,854	$ 2,593