Rialto Investments Segment (Accretable Yield For The FDIC Portfolios And Bank Portfolios) (Details) (Rialto [Member], FDIC Portfolios And Bank Portfolios [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Feb. 28, 2014
Rialto [Member] | FDIC Portfolios And Bank Portfolios [Member]
Segment Reporting Information [Line Items]
Accretable yield, beginning of period	$ 73,144
Additions	1,352
Deletions	(8,704)
Accretions	(9,795)
Accretable yield, end of period	$ 55,997