Rialto Segment Rialto Segment (Equity in Earnings (Loss) on Investments) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2016	May 31, 2015	May 31, 2016	May 31, 2015
Schedule of Equity Method Investments [Line Items]
Equity in earnings from unconsolidated entities			$ 35,422	$ 44,785
Rialto
Schedule of Equity Method Investments [Line Items]
Equity in earnings from unconsolidated entities	$ 6,864	$ 7,328	8,361	9,992
Rialto Real Estate Fund, LP | Rialto
Schedule of Equity Method Investments [Line Items]
Equity in earnings from unconsolidated entities	931	3,044	2,270	3,790
Rialto Real Estate Fund II, LP | Rialto
Schedule of Equity Method Investments [Line Items]
Equity in earnings from unconsolidated entities	2,470	2,286	1,748	3,179
Rialto Mezzanine Partners Fund, LP | Rialto
Schedule of Equity Method Investments [Line Items]
Equity in earnings from unconsolidated entities	701	451	1,425	926
Rialto Capital CMBS Funds | Rialto
Schedule of Equity Method Investments [Line Items]
Equity in earnings from unconsolidated entities	1,208	1,533	1,580	2,077
Rialto Real Estate Fund III | Rialto
Schedule of Equity Method Investments [Line Items]
Equity in earnings from unconsolidated entities	1,622	0	1,383	0
Rialto Credit Partnership, LP | Rialto
Schedule of Equity Method Investments [Line Items]
Equity in earnings from unconsolidated entities	(12)	0	(12)	0
Other investments | Rialto
Schedule of Equity Method Investments [Line Items]
Equity in earnings from unconsolidated entities	$ (56)	$ 14	$ (33)	$ 20