Rialto Segment (Other income expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
Schedule of other operating costs and expenses [Line Items]
Unrealized gain on bargain purchase acquisition	$ 0	$ 0	$ 8,532
Rialto [Member]
Schedule of other operating costs and expenses [Line Items]
Gains (losses) on sales of investment real estate	35,242	43,671	48,785
Net gains (losses) Impairments on REO	(13,678)	(26,107)	(16,517)
Real Estate owned, expenses	(57,740)	(58,067)	(44,282)
Rental income, nonoperating	48,430	43,898	20,269
Unrealized gain on bargain purchase acquisition	0	0	8,532
Other income (expense), net	$ 12,254	$ 3,395	$ 16,787