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Receivables (Schedule Of Receivables Based On Year Of Origination) (Details) (Emerald Advance lines of credit, USD $)
In Thousands, unless otherwise specified
Jul. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Receivables, Net $ 29,555
Year Of Origination 2013
 
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Receivables, Net 8,657
Year Of Origination 2012
 
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Receivables, Net 1,177
Year Of Origination 2011
 
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Receivables, Net 2,083
Year Of Origination 2010 And Prior
 
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Receivables, Net 6,297
Revolving Loans
 
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Receivables, Net $ 11,341