Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended	12 Months Ended
	Feb. 29, 2024	Feb. 29, 2024	Feb. 28, 2023	Feb. 28, 2022
Numerator:
Net income from continuing operations	$ 101,607,000	$ 101,607,000	$ 66,339,000	$ 49,817,000
Dividends on preferred stock		14,400,000	8,240,000	0
Net income from continuing operations available to common shareholders		87,207,000	58,099,000	49,817,000
Numerator for diluted earnings per share continuing operations		87,207,000	58,099,000	49,817,000
Net income (loss) from discontinued operations		0	(119,313,000)	34,205,000
Net income (loss) available to common shareholders		87,207,000	(61,214,000)	84,022,000
Numerator for diluted earnings per share—net income (loss) available to common shareholders		$ 87,207,000	$ (61,214,000)	$ 84,022,000
Denominator:
Denominator for basic earnings per common share-weighted average shares (shares)		25,041	24,828	24,855
Effect of dilutive securities:
Employee and director stock awards		168	150	222
Denominator for diluted earnings per common share (shares)		25,209	24,978	25,077
Earnings per common share from continuing operations
Earnings (loss) per common share from continuing operations (in dollars per share)		$ 3.48	$ 2.34	$ 2.00
Earnings (loss) per common share from continuing operations (in dollars per share)		3.46	2.33	1.99
Earnings per common share from discontinued operations:
Earnings (loss) per common share from discontinued operations (in dollars per share)		0	(4.81)	1.38
Earnings (loss) per common share from discontinued operations (in dollars per share)		0	(4.78)	1.36
Computation of basic and diluted earnings per share
Basic earnings per common share (usd per share)		3.48	(2.47)	3.38
Diluted earnings per common share (usd per share)		$ 3.46	$ (2.45)	$ 3.35