Balance Sheet Details - Components of Inventory (Detail) (USD $)
In Thousands, unless otherwise specified
May 31, 2014
Aug. 31, 2013
Inventory Disclosure [Abstract]    
Raw materials $ 9,453 $ 10,381
Work in progress 1,430 1,913
Finished goods 27,415 21,698
Total inventories $ 38,298 $ 33,992