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Accrued and Other Liabilities - Schedule of Accrued Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Feb. 28, 2013
Aug. 31, 2012
Schedule Of Accrued Liabilities [Line Items]    
Accrued advertising and sales promotion expenses $ 9,358 $ 9,963
Accrued professional services fees 1,018 1,006
Accrued sales taxes 1,258 839
Accrued other taxes 372 1,243
Other 3,932 3,441
Total $ 15,938 $ 16,492