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Basis of Presentation (Tables)
9 Months Ended
Jun. 30, 2012
Basis of Presentation  
Schedule of accounts receivable reserves

 

 
  June 30,
2012
  September 30,
2011
 

Allowance for sales returns

  $ 10,464   $ 10,793  

Promotional programs incentive allowance

    80,872     74,593  

Allowance for doubtful accounts

    5,219     5,468  
           

 

  $ 96,555   $ 90,854