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Valuation And Qualifying Accounts
12 Months Ended
Aug. 31, 2011
Valuation And Qualifying Accounts [Abstract] 
Valuation And Qualifying Accounts

Schedule II – Valuation and Qualifying Accounts

Years Ended August 31, 2011, 2010, and 2009 (in thousands):

 

Allowance for doubtful accounts and

billing adjustments*

    Balance
at
Beginning
of Year		      Charged
to
Expense/
Against
Revenue		      Write-offs,
Net of
Recoveries		      Balance
at End
of Year		  

2011

    $ 1,862       $ 1,748       $ 1,655       $ 1,955   

2010

    $ 1,712       $ 2,903       $ 2,753       $ 1,862   

2009

    $ 1,681       $ 2,488       $ 2,457       $ 1,712   

 

* Additions to the allowance for doubtful accounts are charged to bad debt expense. Additions to the allowance for billing adjustments are charged against revenues.