Income Taxes - Schedule of Provision for (Benefit from) Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2017	Feb. 29, 2016	Feb. 28, 2015
Current:
Federal	$ 7,880	$ 2,519	$ 2,479
State	1,439	839	299
Foreign	792	507	863
Total	10,111	3,865	3,641
Deferred:
Federal	357	(2,707)	51,820
State	13	(850)	4,674
Foreign	1,272	(3,035)	2,767
Total	1,642	(6,592)	59,261
Provision for (benefit from) income taxes	$ 11,753	$ (2,727)	$ 62,902