Components of Income Tax Provision (Benefit) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 28, 2014
Current:
State	$ (31)	$ 229	$ (900)
Foreign	0	0	13
Current Income Tax Expense (Benefit), Total	(31)	229	(887)
Deferred:
Federal	1,793	27,431	(25,219)
State	307	9,288	(7,957)
Deferred Income Taxes and Tax Credits, Total	2,100	36,719	(33,176)
(Benefit) provision for income taxes	$ 2,069	$ 36,948	$ (34,063)