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Investments in Non-Performing Loan Portfolios and Foreclosed Real Estate (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Oct. 31, 2012
Oct. 31, 2011
Dec. 28, 2011
Investment in non-performing loan portfolios      
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance $ 99,693 $ 171,559  
Discount on acquired loans (62,524) (108,325)  
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net 37,169 63,234  
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   200,047 58,234
Certain Loans Acquired in Transfer, Nonaccretable Difference   (81,723) (8,235)
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Cash Flows Expected to be Collected at Acquisition   118,324 49,999
Certain loans acquired in transfer not accouted for as debt security,acquisition date accret cash flow   (51,462) (20,514)
Non-performing loans carrying amount   66,862 29,485
Activity in accretable yield for investment in non-performing loan portfolios      
Beginning balance 42,326 0  
Certain Loans Acquired in Transfer Not Accounted for as a Debt Security, Accret Dff, at acquistion 20,514 51,462  
Additions 5,539     
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Disposals of Loans (40,227) (4,656)  
Accretions (10,956) (4,480)  
Ending balance 17,196 42,326  
Schedule of changes in real estate owned [Roll Forward]      
Real Estate Owned - total beginning of period 5,939 0  
Real Estate Owned Additions 54,174 5,939  
Real Estate Owned, Sales (1,353)     
Real Estate Owned, Impairments (126)     
Real Estate Held And Used Depreciation (281)     
Real Estate Owned - total end of period $ 58,353 $ 5,939