Supplemental Cash Flow Information - Net Cash Flows from Operating Activities Reflect Cash Payments for Interest and Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2017
Supplemental disclosure of cash flow information
Interest paid, net	$ 1,109	$ 731	$ 853
Income taxes paid, net	$ 9,866	15,468	$ 975
Noncash investing and financing activities
Reclassification of the income tax effects of the Tax Act		$ 2,847