EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2017	Aug. 31, 2016
Numerator:
Net income (loss)	$ 12,232	$ 521	$ 9,579	$ (2,138)
Denominator:
Basic weighted average number of common shares outstanding	35,204	36,390	35,136	36,425
Effect of stock options, restricted stock and restricted stock units computed on treasury stock method	817	459	837
Diluted weighted average number of common shares outstanding	36,021	36,849	35,973	36,425
Income (loss) per common share
Basic	$ 0.35	$ 0.01	$ 0.27	$ (0.06)
Diluted	$ 0.34	$ 0.01	$ 0.27	$ (0.06)