Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 29, 2020
Income Statement [Abstract]
Sales	$ 902,664	$ 838,917	$ 1,061,817
Costs and Expenses
Cost of sales	677,441	650,170	824,589
Gross margin	225,223	188,747	237,228
Selling, general and administrative	113,680	107,134	139,253
Restructuring and impairment charges	(1,797)	19,999	18,632
Operating income	113,340	61,614	79,343
Interest expense	6,395	9,648	13,463
Other expense, net	600	969	990
Income before income taxes	106,345	50,997	64,890
Income tax expense	22,323	11,383	16,656
Net Income	$ 84,022	$ 39,614	$ 48,234
Earnings per common share
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
Weighted average shares outstanding
Weighted average number common shares (shares)	24,855,000	25,897,000	26,191,000
Weighted average number common shares and potentially dilutive common shares (shares)	25,077,000	26,045,000	26,281,000
Cash dividends declared per common share (usd per share)	$ 0.68	$ 0.68	$ 0.68