Shareholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended		193 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Repurchase of common stock	0	0	40	0	2,334,344
Repurchase of common stock, average cost per share			$ 22.62		$ 16.47
Total remaining amount available to repurchase of shares			$ 21.5
Payments of dividends	$ 72.3
Special dividend per share	$ 2.5
Stock Repurchase Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Repurchase of common stock			91,883
Repurchase of common stock, average cost per share			$ 19.79
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, authorized aggregate amount	$ 60.0		$ 60.0		$ 60.0