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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Sep. 30, 2013
Summary of Significant Accounting Policies  
Schedule of accounts receivable reserves

Accounts receivable are presented net of the following reserves at September 30:

 
  2013   2012  

Allowance for sales returns

  $ 13,549   $ 10,360  

Promotional program incentive allowances

    82,827     71,845  

Allowance for doubtful accounts

    2,472     5,244  
           

 

  $ 98,848   $ 87,449