Earnings Per Share - Computation for Basic and Diluted Earnings Per Share (Detail) - $ / shares	3 Months Ended		9 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2024	Nov. 30, 2023
Earnings Per Share [Abstract]
Basic weighted average common shares outstanding	26,013,892	25,894,578	26,028,596	25,826,691
Effect of dilutive stock options, restricted stock, time-based RSUs and performance-based RSUs	75,065	188,723	163,412	164,876
Diluted weighted average common shares outstanding	26,088,957	26,083,301	26,192,008	25,991,567
Earnings per share
Net earnings - basic	$ 0.39	$ 0.38	$ 1.2	$ 1.26
Net earnings - diluted	0.39	0.38	1.19	1.25
Cash dividends per share	$ 2.75	$ 0.25	$ 3.25	$ 0.75