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Investments in Distressed Loans and Foreclosed Real Estate (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Jan. 31, 2013
Jan. 31, 2012
Oct. 31, 2012
Dec. 28, 2011
Investment in non-performing loan portfolios        
Impaired Financing Receivable, Unpaid Principal Balance $ 91,339   $ 99,693  
Discount on acquired loans 48,507   62,524  
Investments in distressed loans 42,832   37,169  
Summary of accretable yield and nonaccretable difference on investments in non-performing loans portfolios        
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Contractually Required Payments Receivable at Acquisition 0     52,524
Nonaccretable difference       (5,125)
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Cash Flows Expected to be Collected at Acquisition       47,399
Certain loans acquired in transfer not accouted for as debt security,acquisition date accret cash flow       (20,514)
Non-performing loans carrying amount       26,885
Activity in accretable yield for investment in non-performing loan portfolios        
Begining balance 17,196 42,326    
Certain Loans Acquired in Transfer Not Accounted for as a Debt Security, Accret Dff, at acquistion 0 20,514    
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Disposals of Loans 2,387 1,768    
Accretions (1,403) (3,228)    
Ending balance 13,406 57,844    
Schedule of changes in real estate owned [Roll Forward]        
Real Estate Owned - total beginning of period 58,353 5,939    
Real Estate Owned Additions 11,040 1,164    
Real Estate Owned, Sales (439) (615)    
Real Estate Owned, Impairments (15)       
Real Estate Held And Used Depreciation (175)       
Real Estate Owned - total end of period $ 68,764 $ 6,488