Rialto Segment (Condensed Financial Information By Equity Method Investment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2017	May 31, 2016	May 31, 2017	May 31, 2016	Nov. 30, 2016
Segment Reporting Information [Line Items]
Equity in earnings (loss) from unconsolidated entities			$ 5,986	$ 35,422
Rialto
Segment Reporting Information [Line Items]
Cash and cash equivalents	$ 77,047		77,047		$ 230,229
Loans receivable	434,771		434,771		406,812
Real estate owned	360,337		360,337		439,191
Investment securities	1,543,517		1,543,517		1,379,155
Investments in partnerships	415,316		415,316		398,535
Other assets	190,885		190,885		29,036
Total assets	3,021,873		3,021,873		2,882,958
Accounts payable and other liabilities	44,989		44,989		36,131
Notes payable	617,587		617,587		532,264
Equity	2,359,297		2,359,297		2,314,563
Total liabilities and equity	3,021,873		3,021,873		2,882,958
Revenues	61,030	$ 51,240	118,186	95,536
Costs and expenses	29,000	20,704	57,001	41,603
Other income (expense), net	9,321	26,710	9,648	11,548
Net earnings (loss) of unconsolidated entities	41,351	57,246	70,833	65,481
Equity in earnings (loss) from unconsolidated entities	5,730	$ 6,864	6,452	$ 8,361
Debt issuance costs	$ 4,100		$ 4,100		$ 2,900