Balance Sheet Information and Fair Value - Deferred Costs (Detail) - USD ($) $ in Thousands	Feb. 29, 2016	Feb. 28, 2015
Deferred Cost [Line Items]
Total deferred costs	$ 58,962	$ 57,936
Appliance
Deferred Cost [Line Items]
Total deferred costs	41,548	41,052
Commissions
Deferred Cost [Line Items]
Total deferred costs	$ 17,414	$ 16,884