Earnings Per Share - Computation for Basic and Diluted Earnings Per Share (Detail) - $ / shares	3 Months Ended		6 Months Ended
	Aug. 31, 2024	Aug. 31, 2023	Aug. 31, 2024	Aug. 31, 2023
Earnings Per Share [Abstract]
Basic weighted average common shares outstanding	26,009,876	25,886,058	26,015,195	25,858,154
Effect of dilutive stock options, restricted stock, time-based RSUs and performance-based RSUs	44,623	164,925	140,966	152,585
Diluted weighted average common shares outstanding	26,054,499	26,050,983	26,156,161	26,010,739
Earnings per share
Net earnings - basic	$ 0.4	$ 0.42	$ 0.81	$ 0.87
Net earnings - diluted	0.4	0.42	0.8	0.87
Cash dividends per share	$ 0.25	$ 0.25	$ 0.5	$ 0.5