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

QUEST SOFTWARE, INC. AND SUBSIDIARIES

FINANCIAL STATEMENT SCHEDULE

SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS

 

Description

    Balance at
Beginning
of Period		      Acquired
Balances		      Charges,
Costs and
Expenses		      Additions/
Deductions		     Balance at
End of
Period		  
     (In Thousands)  

Year ended December 31, 2011:

              

Allowance for bad debt

    $ 509       $ 140      $ 131       $ (171 )    $ 609   

Allowance for sales returns and cancellations

    $ 4,858       $ 516       $ 623       $ (237 )    $ 5,760   

Year ended December 31, 2010:

              

Allowance for bad debt

    $ 535       $ —         $ 458       $ (484 )    $ 509   

Allowance for sales returns and cancellations

    $ 5,070       $ —         $ 2,112       $ (2,324 )    $ 4,858   

Year ended December 31, 2009:

              

Allowance for bad debt

    $ 847       $ —         $ 72       $ (384 )    $ 535   

Allowance for sales returns and cancellations

    $ 7,537       $ 1       $ 1,062       $ (3,530 )    $ 5,070