- Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 29, 2020
Numerator:
Net income (loss)	$ 84,022	$ 39,614	$ 48,234
Denominator:
Denominator for basic earnings per common share-weighted average shares (shares)	24,855,000	25,897,000	26,191,000
Effect of dilutive securities:
Employee and Director stock awards (shares)	222,000	148,000	90,000
Denominator for diluted earnings per common share (shares)	25,077,000	26,045,000	26,281,000
Earnings per share basic and diluted:
Basic earnings per common share (usd per share)	$ 3.38	$ 1.53	$ 1.84
Diluted earnings per common share (usd per share)	$ 3.35	$ 1.52	$ 1.84