Earnings Per Share - Computation for Basic and Diluted Earnings Per Share (Detail) - $ / shares	3 Months Ended		9 Months Ended
	Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2023	Nov. 30, 2022
Earnings Per Share [Abstract]
Basic weighted average common shares outstanding	25,894,578	25,809,581	25,826,691	25,812,216
Effect of dilutive stock options, restricted stock and RSUs	188,723	79,234	164,876	80,657
Diluted weighted average common shares outstanding	26,083,301	25,888,815	25,991,567	25,892,873
Earnings per share
Net earnings - basic	$ 0.38	$ 0.44	$ 1.26	$ 1.36
Net earnings - diluted	0.38	0.44	1.25	1.36
Cash dividends per share	$ 0.25	$ 0.25	$ 0.75	$ 0.75