Provision (Benefit) for Income Tax by Geographical Location (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 28, 2014
Schedule of Components of Income Before Income Tax Expense (Benefit) [Line Items]
Income (loss) before income taxes	$ 1,765	$ (59,037)	$ 14,592
United States
Schedule of Components of Income Before Income Tax Expense (Benefit) [Line Items]
Income (loss) before income taxes	1,765	(58,692)	16,659
Foreign
Schedule of Components of Income Before Income Tax Expense (Benefit) [Line Items]
Income (loss) before income taxes	$ 0	$ (345)	$ (2,067)