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Accounts Payable and Accrued Liabilities
 12 Months Ended
Jul. 31, 2013
Payables and Accruals [Abstract]  
Accounts Payable and Accrued Liabilities
(8)
   Accounts Payable and Accrued Liabilities
 
Accounts payable and accrued liabilities consist of the following (in thousands):

     Years Ended July 31,    
     2013    2012
Trade accounts payable
               $ 34,488          $ 16,353   
Accounts payable to sellers
                  36,073             36,153   
Accrued insurance
                  6,048             5,686   
Accrued compensation and benefits
                  21,978             16,791   
Buyer deposits and prepayments
                  25,384             18,061   
Other accrued liabilities
                  12,677             9,633   
 
               $ 136,648          $ 102,677   

 

The Company is partially self-insured for certain losses related to general liability, workers’ compensation and auto liability. Accrued insurance liability represents an estimate of the ultimate cost of claims incurred as of the balance sheet date. The estimated liability is not discounted and is established based upon analysis of historical data, including the severity of our frequency of claims, actuarial estimates and is reviewed periodically by management to ensure that the liability is appropriate.