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Shareholders' Equity - Additional Information (Detail) $ / shares in Units, $ in Millions | 6 Months Ended | 155 Months Ended
--- | --- | ---
Aug. 31, 2021 USD ($) shares | Aug. 31, 2021 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Repurchase of common stock | shares | 0 | 1,894,350
Repurchase of common stock, average cost per share | $ / shares |  | $ 15.91
Total remaining amount available to repurchase of shares | $ 9.9 |
Maximum [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Stock repurchase program, authorized aggregate amount | $ 40.0 | $ 40.0

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