Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 30, 2025	Nov. 30, 2024	Nov. 30, 2025	Nov. 30, 2024
Numerator:
Net income	$ 41,075	$ 33,603	$ 301,329	$ 108,624
Series A Preferred Stock Dividends	0	0	0	(1,200)
Redemption premium on Series A Preferred Stock	0	0	0	(75,198)
Numerator for diluted earnings per share—net income (loss) available to common shareholders	$ 41,075	$ 33,603	$ 301,329	$ 32,226
Denominator:
Denominator for basic earnings per common share-weighted average shares (shares)	29,963,000	29,879,000	29,983,000	28,819,000
Effect of dilutive securities:
Employee and director stock awards	235,000	239,000	248,000	257,000
Denominator for diluted earnings per common share (shares)	30,198,000	30,118,000	30,231,000	29,076,000
Computation of basic and diluted earnings per share
Basic earnings per common share (usd per share)	$ 1.37	$ 1.12	$ 10.05	$ 1.12
Diluted earnings per common share (usd per share)	$ 1.36	$ 1.12	$ 9.97	$ 1.11