Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
May 31, 2021	May 31, 2020
Numerator:
Net income for basic and diluted earnings per common share	$ 22,337	$ 5,541
Denominator:
Denominator for basic earnings per common share-weighted average shares (shares)	25,051	26,157
Effect of dilutive securities:
Employee and Director stock awards (shares)	219	35
Denominator for diluted earnings per common share (shares)	25,270	26,192
Earnings per share basic and diluted:
Basic earnings per common share (usd per share)	$ 0.89	$ 0.21
Diluted earnings per common share (usd per share)	$ 0.88	$ 0.21

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