Earnings Per Share - Computation for Basic and Diluted Earnings Per Share (Detail) - $ / shares	3 Months Ended
	May 31, 2021	May 31, 2020
Earnings Per Share [Abstract]
Basic weighted average common shares outstanding	26,029,355	25,975,010
Effect of dilutive RSUs	84,004
Diluted weighted average common shares outstanding	26,113,359	25,975,010
Earnings per share
Net earnings - basic	$ 0.28	$ 0.16
Net earnings - diluted	0.28	0.16
Cash dividends	$ 0.225	$ 0.225