Income Taxes - Components of Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2017	Feb. 29, 2016	Feb. 28, 2015
Current:
Federal	$ 10,543	$ 16,086	$ 15,535
State and local	2,254	2,502	2,608
Foreign	0	0	0
Total current	12,797	18,588	18,143
Deferred:
Federal	932	342	1,635
State and local	(113)	(147)	207
Total deferred	819	195	1,842
Total provision for income taxes	$ 13,616	$ 18,783	$ 19,985