Rialto Segment (Condensed Financial Information By Equity Method Investment) (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Nov. 30, 2015
Segment Reporting Information [Line Items]
Equity in earnings (loss) from unconsolidated entities	$ 24,183	$ 31,385
Rialto [Member]
Segment Reporting Information [Line Items]
Cash and cash equivalents	108,500		$ 188,147
Loans receivable	450,787		473,997
Real estate owned	518,466		506,609
Investment securities	1,188,653		1,092,476
Investments in partnerships	422,493		429,979
Other assets	27,495		30,340
Total assets	2,716,394		2,721,548
Accounts payable and other liabilities	35,947		29,462
Notes payable	450,250		374,498
Equity	2,230,197		2,317,588
Total liabilities and equity	2,716,394		$ 2,721,548
Revenues	44,296	41,738
Costs and expenses	20,899	23,005
Other income, net	(15,162)	5,874
Net earnings (loss) of unconsolidated entities	8,235	24,607
Equity in earnings (loss) from unconsolidated entities	$ 1,497	$ 2,664