Rialto Segment (Schedule of Credit Facilities) (Details) - Rialto [Member] - USD ($) $ in Thousands	Nov. 30, 2015	Nov. 30, 2014
Line of Credit Facility [Line Items]
Long-term Line of Credit	$ 317,104	$ 141,272
Line of credit facility maximum borrowing capacity	1,000,000
Warehouse Repurchase Facility One [Member]
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity	400,000
Warehouse Repurchase Facility Two [Member]
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity	250,000
Warehouse Repurchase Facility Three [Member]
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity	250,000
Warehouse Repurchase Facility Four [Member]
Line of Credit Facility [Line Items]
Long-term Line of Credit	36,300
Line of credit facility maximum borrowing capacity	$ 100,000