Balance Sheet Information - Deferred Costs (Detail) - USD ($) $ in Thousands	May 31, 2016	Feb. 29, 2016
Deferred Cost [Line Items]
Total deferred costs	$ 59,061	$ 58,962
Appliance
Deferred Cost [Line Items]
Total deferred costs	40,960	41,548
Commissions
Deferred Cost [Line Items]
Total deferred costs	$ 18,101	$ 17,414