Earnings Per Share - Computation for Basic and Diluted Earnings Per Share (Detail) - $ / shares	3 Months Ended		9 Months Ended
	Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2022	Nov. 30, 2021
Earnings Per Share [Abstract]
Basic weighted average common shares outstanding	25,809,581	26,020,210	25,812,216	26,053,898
Effect of dilutive RSUs	79,234	0	80,657	97,582
Diluted weighted average common shares outstanding	25,888,815	26,020,210	25,892,873	26,151,480
Earnings per share
Net earnings - basic	$ 0.44	$ 0.29	$ 1.36	$ 0.86
Net earnings - diluted	0.44	0.29	1.36	0.85
Common Stock, Dividends, Per Share, Cash Paid	$ 0.250	$ 0.250	$ 0.750	$ 0.725