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Basis of Presentation (Tables)
9 Months Ended
Jun. 30, 2013
Basis of Presentation  
Schedule of accounts receivable reserves
 
  June 30,
2013

  September 30,
2012

 

Allowance for sales returns

  $ 12,098   $ 10,360  

Promotional programs incentive allowance

    82,234     71,845  

Allowance for doubtful accounts

    5,419     5,244  
   
 
 

 

  $ 99,751   $ 87,449