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Basis of Presentation (Tables)
6 Months Ended
Mar. 31, 2013
Basis of Presentation  
Schedule of accounts receivable reserves

 

 

 
  March 31,
2013
  September 30,
2012
 

Allowance for sales returns

  $ 11,628   $ 10,360  

Promotional programs incentive allowance

    77,178     71,845  

Allowance for doubtful accounts

    5,203     5,244  
           

 

  $ 94,009   $ 87,449