Shareholders' Equity - Additional Information (Detail) - shares	6 Months Ended
	Aug. 31, 2022	Aug. 31, 2021	Jan. 20, 2014
Stock Based Compensation [Line Items]
Stock options granted	0	0
Authorized stock repurchase	2,632,500
Additional authorized stock repurchase			1,500,000
Repurchase of treasury stock (in shares)	0	0
Remaining repurchase of shares authorized	490,186
Stock options convertible into shares excluded from diluted earnings per (loss) share calculation	200,000	200,000