Contingent Liabilities And Commitments (Tables)
 9 Months Ended
Apr. 30, 2012
Contingent Liabilities And Commitments [Abstract]  
Principal Commercial Commitments Under Repurchase Agreements And Guarantees
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Commitment

            Total Amount        
Committed		     

    Terms of Commitments    

Guarantee on dealer inventory financing

      $ 962         Various

Standby repurchase obligations on dealer inventory financing

      $ 938,140         Up to eighteen months
Losses Due To Repurchases Under Repurchase Agreements
       Three Months Ended  
April 30,		        Nine Months Ended  
April 30,		  
     2012      2011      2012      2011  

Cost of units repurchased

        $             953            $             398            $             2,761            $             5,466    

Realization of units resold

      863          342          2,445          4,669    
  

 

 

     

 

 

     

 

 

     

 

 

  

Losses due to repurchase

        $         90            $         56            $         316            $         797