Shareholders' Equity - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
May 31, 2021	May 31, 2020	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
General and Administrative
Stock Based Compensation [Line Items]
Share-based compensation	$ 0	$ 0

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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